Earbuds / Compare

Apple AirPods 4 with Active Noise Cancellation vs Sennheiser ACCENTUM True Wireless

A

Product A: Apple

AirPods 4 with Active Noise Cancellation

86 of 166 known

Change Apple AirPods 4 with Active Noise Cancellation

Compare the Sennheiser ACCENTUM True Wireless with

Search earbuds

B

Product B: Sennheiser

ACCENTUM True Wireless

86 of 166 known

Change Sennheiser ACCENTUM True Wireless

Compare the Apple AirPods 4 with Active Noise Cancellation with

Search earbuds

All 166 fields

Every value links to where we found it.

Only differences

AApple AirPods 4 with Active Noise Cancellation

BSennheiser ACCENTUM True Wireless

General

7 of 8 differ

Series

AirPods4Maker product pagesupport.apple.com/en-us/109525Read 30 September 2026Identify your AirPods exact model subsection. Family name normalized from AirPods / AirPods Pro generation title.

ACCENTUM5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026The release places ACCENTUM True Wireless in the ACCENTUM family next to ACCENTUM Wireless and ACCENTUM Plus Wireless.

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

A3055, A3056, A3057, A30594Maker product pagesupport.apple.com/en-us/109525Read 30 September 2026Identify your AirPods: AirPods 4 (ANC) A3056, A3055, A3057. Wireless Charging Case for AirPods 4 (ANC) A3059

ATW1, ATW1 R, ATW1 L, ATW1 C, 700262, 700263, 7002641Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: article numbers 700262 (Black), 700263 (White) and 700264 (Blue).2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Order names ATW1 Black, ATW1 White and ATW1 Blue with article numbers 700262, 700263 and 700264.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Cover: ATW1, ATW1 R, ATW1 L and ATW1 C.4Regulatory filingcdn.sennheiser-hearing.com/product-documents/product-downloads/accentum-true-wireless/safety_instruction/Compliance_Information_ACCENTUM_True_Wireless.pdfRead 16 October 2026Models ATW1, ATW1 R, ATW1 L and ATW1 C.7Maker product pageus.sennheiser-hearing.com/products/accentum-true-wireless.jsRead 16 October 2026US store SKUs 700262 (Black), 700263 (White) and 700264 (Blue).

GTIN / EAN

019594968967329Retailer pagefuture-x.de/Apple-AirPods-4-with-Active-Noise-Cancellation-True-Wireless-Kopfhoerer-mit-Mikrofon/999885569Read 7 October 2026Exact new EU MXP93ZM/A ANC package retailer product header GTIN 0195949689673. Cross-checked equivalent UPC 195949689673 on another new-package retailer. Refurbished/repacked 195949689284, other regional LL/A/D package identifiers and invalid shifted code 1959496896736 are not merged. Maker exact page has no GTIN. One proved EU package code, not asserted worldwide complete list.

4260752331241, 4260752331258, 4260752331265, 810091271148, 810091271155, 8100912711622Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Technical Data table: EAN 4260752331241, 4260752331258 and 4260752331265 and UPC 810091271148, 810091271155 and 810091271162 for Black, White and Blue.

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

9 September 20242Press releaseapple.com/newsroom/2024/09/apple-introduces-airpods-4-and-a-hearing-health-experience-with-airpods-pro-2Read 30 September 2026Dated maker launch release header and introductory announcement of exact generation.

7 May 20245Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026Maker news dated 6 May 2024 with the Wedemark dateline of 7 May 2024. The dateline date is stored.

Status

Not available

Available1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026US store shows the product at 99.95 USD against 219.95 USD and lists Black, White and Blue.7Maker product pageus.sennheiser-hearing.com/products/accentum-true-wireless.jsRead 16 October 2026All three SKUs are available on 2026-10-16.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$1792Press releaseapple.com/newsroom/2024/09/apple-introduces-airpods-4-and-a-hearing-health-experience-with-airpods-pro-2Read 30 September 2026$179 (U.S.)

$199.995Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026MSRP of 199.99 USD and 279.95 CAD. SoundGuys and T3 print 199.95 USD. The maker figure is stored.8Reviewsoundguys.com/sennheiser-accentum-true-wireless-review-116713Read 16 October 2026Review lists 199.95 USD.

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

€1993Press releaseapple.com/de/newsroom/2024/09/apple-introduces-airpods-4-and-a-hearing-health-experience-with-airpods-pro-2Read 30 September 2026German price, 199 Euro inkl. MwSt.

€199.96Press releasecdn.uc.assets.prezly.com/ff61fc44-afa0-42f0-934b-a6293529e6bd/-/inline/no/Pressemitteilung_Sennheiser%20ACCENTUM%20True%20Wireless.pdfRead 16 October 2026German release of 7 May 2024: 199.90 EUR (209.90 CHF), incl. VAT.

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

US, DE, CN30Press releaseapple.com/newsroom/2024/09/apple-introduces-airpods-4-and-a-hearing-health-experience-with-airpods-pro-2Read 7 October 2026Exact launch pricing and availability explicitly U.S. orders with USD 179 ANC edition.31Press releaseapple.com/de/newsroom/2024/09/apple-introduces-airpods-4-and-a-hearing-health-experience-with-airpods-pro-2Read 7 October 2026Exact Germany maker launch price EUR 199 incl VAT, exact ANC edition.32Review52audio.com/archives/214147.htmlRead 7 October 2026Exact China-market retail A3057/A3059 ANC package label identifies Apple authorized China distributor. No cross-model features borrowed.

US, CA, DE, GB, AU5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026United States and Canada MSRP in the release.6Press releasecdn.uc.assets.prezly.com/ff61fc44-afa0-42f0-934b-a6293529e6bd/-/inline/no/Pressemitteilung_Sennheiser%20ACCENTUM%20True%20Wireless.pdfRead 16 October 2026Germany.10Reviewt3.com/reviews/sennheiser-accentum-true-wireless-reviewRead 16 October 2026Now on sale for 169.99 GBP in the UK and 299 AUD in Australia.

ColoursiThe maker's own colour names

White20Reviewnotebookcheck.net/Apple-AirPods-4-ANC-review-Compact-design-colossal-sound.952120.0.htmlRead 7 October 2026Exact ANC review case paragraph explicitly only available in white. Apple product renders match but were not sole color-name evidence.

Black, White, Blue1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Colour selector: Black, White and Blue.5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026Launch colours black and white. Blue was added later and is on the maker store.7Maker product pageus.sennheiser-hearing.com/products/accentum-true-wireless.jsRead 16 October 2026Black, White and Blue.

Segment

Not available

Not available

Design

2 of 4 differ

Form factoriIn-ear seals the ear canal with a tip. Semi-in-ear rests in the outer ear without a seal. Open-ear leaves the ear canal unobstructed.

Semi-in-ear6Reviewsoundguys.com/apple-airpods-4-with-active-noise-cancellation-review-124137Read 30 September 2026Unsealed earbuds

In-ear1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: ear coupling ear canal, true wireless stereo earphones with four ear tip sizes.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Wearing style true wireless earphones with ear coupling in the ear canal. The silicone ear tips must seal the ear fully.

Bud shapeiStem describes an extending control or microphone stalk. Stemless describes a compact body without a stalk.

Stem6Reviewsoundguys.com/apple-airpods-4-with-active-noise-cancellation-review-124137Read 30 September 2026Control design paragraph explicitly calls the control-bearing earbud extension a stem.

Stemless3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Earbud diagrams show a compact body with no stalk.

Use one bud aloneiWhich earbud can operate alone. This does not mean two earbuds can play from different sources.

Either bud10Owner's manualsupport.apple.com/guide/airpods/play-audio-on-your-airpods-dev216d7c746/webRead 30 September 2026Play audio: wearing one AirPod plays and pauses audio through that earbud. Applies to AirPods 3/4/5 and Pro.

Either bud3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026You can also use only the right or only the left earbud.

RGB lighting

Not available

Not available

Drivers and sound

7 of 17 differ

Drivers per budiAudio transducers in one earbud. Rows distinguish their type, acoustic role and published diameter. Do not count microphones.

AApple AirPods 4 with Active Noise Cancellation

Type	Count per earbud
Dynamic	1

Source1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026One "custom high-excursion Apple driver" per bud. Role and type are not stated on this page. The type comes from the TechRadar spec table.18Reviewtechradar.com/audio/headphones/earbuds-airpods/airpods-4-with-active-noise-cancellation-reviewRead 7 October 2026Exact ANC edition review explicitly high-excursion dynamic driver. Existing one-per-bud count retained. No full-range role, size or diaphragm material guessed.

BSennheiser ACCENTUM True Wireless

Type	Diameter (mm)	Count per earbud
Dynamic	7	1

Source1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: TrueResponse dynamic, 7 mm diameter. One driver per earbud.

Driver typeiPublished transducer technology. High-excursion, composite and neodymium do not by themselves establish a driver type.

Dynamic17Reviewtechradar.com/audio/headphones/earbuds-airpods/airpods-4-with-active-noise-cancellation-reviewRead 7 October 2026Exact AirPods 4 ANC spec table explicitly High-excursion dynamic driver. Maker high-excursion alone is not technology proof. No diaphragm material, diameter or impedance inferred.

Dynamic1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: speaker principle dynamic.

Driver sizeiLargest explicitly published circular driver diameter in one earbud. A rectangular driver width is not a diameter.

Not available

7mm=CalculatedFrom Drivers per bud

Drivers per budiTotal audio transducers in one earbud, summed from explicit driver quantities. A row with an unknown quantity makes the total unknown.

1=CalculatedFrom Drivers per bud

1=CalculatedFrom Drivers per bud

Diaphragm material

Not available

Not available

Frequency responseiPublished acoustic frequency response of the earbuds. Codec transmission bandwidth alone does not qualify. Conditions belong in the source note.

Not available

Min5 HzMax21 kHz1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: speaker frequency range 5 Hz to 21 kHz. Conditions are not stated.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Speaker frequency range 5 Hz to 21 kHz.

Impedance

Not available

Not available

SensitivityiPublished acoustic sensitivity. The electrical reference and frequency must be stated in sensitivity_reference or the source note.

Not available

107dB1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: 107 dB SPL (1 kHz / 1 mW). The manual prints 107 dB at 1 kHz / 0 dBFS.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Speaker sensitivity 107 dB SPL (1 kHz / 1 mW).

Sensitivity reference

Not available

Per 1 mW1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table gives the reference as 1 mW.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Reference 1 mW.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications print the level as 107 dB at 1 kHz / 0 dBFS. The spec sheet says 1 mW, which is stored. The two references are not the same.

Max sample rateiHighest supported audio sample rate under the codec and source-device conditions in the source note. This does not establish lossless playback.

Not available

Not available

Max bit depthiHighest supported audio bit depth under the codec and source-device conditions in the source note. Bluetooth version alone does not establish this.

Not available

Not available

Adaptive EQiAn inner mic tunes the sound to your ear in real time

Yes1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Audio Technology names Adaptive EQ.

Not available

Personalised soundiA profile from a hearing test or ear scan

Yes14Owner's manualsupport.apple.com/en-euro/guide/airpods/dev00eb7e0a3/webRead 7 October 2026Exact supported AirPods 4 family Personalized Spatial Audio uses iPhone X or later camera representation of individual ear and head shape, profile syncs across Apple Account devices. Existing tech specification TrueDepth camera requirement preserved. This is ear/head scan personalization, not an assumed hearing test or simple preference EQ.

Yes1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Page: the Smart Control Plus app has a Sound Personalization feature that assesses your listening preferences. The Sound Check presets come from a listening test.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Sound Check in the app guides you step by step to user-defined equalizer presets.8Reviewsoundguys.com/sennheiser-accentum-true-wireless-review-116713Read 16 October 2026Sound Check feature takes a listening test that determines your preferred sound.

Onboard EQ

Yes8Owner's manualsupport.apple.com/guide/airpods/customize-eq-te819024i19r/webRead 30 September 2026Customize EQ note: settings are stored on the AirPods and carry over to other paired devices.

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026The sound effects are stored in the earbuds and stay active without the app, for example on another Bluetooth device.

Custom EQ bandsiNumber of independently adjustable custom equalizer frequency bands. Availability may require current firmware, an app or a compatible device.

38Owner's manualsupport.apple.com/guide/airpods/customize-eq-te819024i19r/webRead 30 September 2026Customize EQ: Low, Mid and High controls. Supported-models appendix explicitly includes this model. Current feature, requires compatible Apple software and firmware.9Owner's manualsupport.apple.com/en-nz/guide/airpods/aside/glosrqz3g8xj/27/web/27Read 30 September 2026Custom EQ supported models: AirPods 4 and AirPods 5 both editions, AirPods Pro 2/3 and AirPods Max 2.

51Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Page: 5-band EQ in the Smart Control app.5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 20265-band equalizer and Sound Check in the Smart Control app.

EQ presetsiNamed equalizer sound presets. Noise-control modes and spatial-audio modes are separate features.

Not available

Not available

Volume limit

Not available

Not available

Spatial audio

2 of 2 differ

Spatial audioiNamed spatial or surround audio processing supported with the source and platform conditions stated in the source note.

Personalized Spatial Audio1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Audio Technology explicitly lists Personalized Spatial Audio and Conversation Awareness.

Not available

Head trackingiSpatial audio changes with head movement. Static spatial processing alone does not qualify. Compatible device or content requirements belong in the source note.

Yes1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Audio Technology names Personalized Spatial Audio with dynamic head tracking.

Not available

Noise cancelling

4 of 11 differ

Active noise cancelling

Yes1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Audio Technology names Active Noise Cancellation.

Yes1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Hybrid Active Noise Cancellation.

ANC typeiFeedforward uses exterior microphones. Feedback uses interior microphones. Hybrid uses both. Adaptive control is separate from microphone placement.

Hybrid6Reviewsoundguys.com/apple-airpods-4-with-active-noise-cancellation-review-124137Read 30 September 2026"the hybrid ANC unit"

Hybrid1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: Active Noise Cancellation Hybrid ANC.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications: Hybrid ANC technology.5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026Hybrid ANC with Transparency modes.

ANC microphones in both earbudsiPhysical microphones used by ANC across the pair. A shared call and ANC microphone counts once. Case microphones and vibration sensors are excluded.

Not available

43Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications: 2 microphones per earbud for speech and ANC, so four across the pair. Shared microphones count once.

Adaptive ANCiANC strength or calibration adjusts automatically to noise, fit or ear acoustics. The source note states the adjustment conditions.

Yes23Reviewscarbir.com/tws/apple-airpods-4-anc-reviewRead 7 October 2026Exact ANC model noise section explicitly continuously scans surroundings and standard ANC adjusts directly to new noise. Reviewer observes response after about one second to traffic/train/chatter. This supports ANC adjustment, independent of Adaptive Audio blended mode. Apple manual separately proves adaptive noise-control mode. Firmware unstated.

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026With adaptive noise cancellation the intensity is controlled automatically by the ambient noise. ANC modes in the app: On, Off and Anti Wind.

ANC levelsiNumber of selectable ANC strength levels. Excludes ANC off, transparency and activity profiles unless they explicitly set distinct strength levels.

Not available

Not available

ANC attenuation (claimed)iManufacturer maximum claimed noise attenuation. Frequency and measurement conditions belong in the source note. This is not reviewer-measured overall attenuation.

Not available

Not available

Transparency mode

Yes1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Audio Technology names Transparency.

Yes1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Page: Transparency Mode.

Adjustable transparency

Not available

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026The intensity of transparency mode is set in the Smart Control app.5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026In the app the user can select the amount of transparency.9Reviewheadphonecheck.com/test/sennheiser-accentum-true-wirelessRead 16 October 2026A three-stage transparency mode.

Automatic ANC and transparency blendiAutomatically blends active cancellation with ambient sound. Automatic activity-based switching between separate modes alone does not qualify.

Yes1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Audio Technology names Adaptive Audio.

Not available

Conversation detection

Yes1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Audio Technology explicitly lists Personalized Spatial Audio and Conversation Awareness.

Not available

Wind noise reductioniA documented physical design or processing feature for reducing wind noise. The source note distinguishes mesh or shape changes from selectable processing.

Yes23Reviewscarbir.com/tws/apple-airpods-4-anc-reviewRead 7 October 2026Exact ANC noise section explicitly detects wind and adjusts/filters it, in ANC and transparency. Separate phone-call paragraph reports wind suppression in microphone path. No attenuation dB or dedicated toggle inferred.

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026ANC mode Anti Wind: light reduction to keep disturbing wind or movement noise to a minimum. It is a selectable mode.9Reviewheadphonecheck.com/test/sennheiser-accentum-true-wirelessRead 16 October 2026A special anti-wind ANC mode for outdoor use.

Measured

9 of 23 differ

Frequency response notes (measured)iMeasured by a reviewer, not claimed by the maker

Warm sound signature. Bass slightly underemphasized, treble very underemphasized.5Measurementrtings.com/headphones/reviews/apple/airpods-4-with-active-noise-cancellation-truly-wirelessRead 30 September 2026Sound signature: Warm. Detailed results are members only and were not read

Default sound over-emphasizes bass by a couple of dB against the SoundGuys target and under-emphasizes the mids around 500 Hz and 3 kHz by up to 5 dB. There is a boost of a couple of dB around 13 kHz. With ANC on the bass is more emphasized.8Reviewsoundguys.com/sennheiser-accentum-true-wireless-review-116713Read 16 October 2026Lab measurement on SoundGuys' test rig against its headphone preference curve, default settings, firmware 5.7.6, Smart Control app 4.8.1. ANC adds bass emphasis. SoundGuys did not measure battery for this model.

Bass amount (measured)iDeviation from the review source target in the bass range. Positive means more bass. Target, test method and settings belong in the source note.

-2dB5Measurementrtings.com/headphones/reviews/apple/airpods-4-with-active-noise-cancellation-truly-wirelessRead 30 September 2026Public summary on test bench 2.3: Slightly Underemphasized (-2 dB)

Not available

Treble amount (measured)iDeviation from the review source target in the treble range. Positive means more treble. Values from different targets may not be directly comparable.

-6dB5Measurementrtings.com/headphones/reviews/apple/airpods-4-with-active-noise-cancellation-truly-wirelessRead 30 September 2026Very Underemphasized (-6 dB)

Not available

Deviation from target (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Consistency between fittings (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Harmonic distortion (measured)iMeasured by a reviewer, not claimed by the maker

0.061%20Reviewnotebookcheck.net/Apple-AirPods-4-ANC-review-Compact-design-colossal-sound.952120.0.htmlRead 7 October 2026Exact AirPods 4 ANC THD table 0.061%, not THD+N 0.73%. Method low-harmonic 1 kHz sine, artificial head with linear mic approximately 1 cm away, source RMS -2.4 dBFS. App/firmware, volume and ANC state for THD unspecified. Date 6 February 2025. No percent of frequency response used.

Not available

Sound leakage (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Noise isolation (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Noise isolation, best (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Passive isolation (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Call quality notes (measured)iMeasured by a reviewer, not claimed by the maker

Background noise is filtered by processing on the iPhone, so the microphones perform better with an iPhone than with other devices.6Reviewsoundguys.com/apple-airpods-4-with-active-noise-cancellation-review-124137Read 30 September 2026Microphone test paragraph: iPhone processing filters background noise. Paired iPhone microphone demos underpin comparison.

Clear in a quiet room. The microphones struggle to attenuate simulated office, street and wind noise.8Reviewsoundguys.com/sennheiser-accentum-true-wireless-review-116713Read 16 October 2026SoundGuys microphone tests with simulated office, street and wind noise.

Mic low-frequency extension (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Mic high-frequency extension (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Mic speech-to-noise ratio (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Latency (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Bluetooth latency, worst (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

2.4 GHz latency, worst (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Latency in game mode (measured)iThe best case the buds can reach. Measured by a reviewer

Not available

Not available

Battery life (measured)iReviewer-tested operation from one full charge of the earbuds. Excludes case recharges. ANC, codec, connection, volume and tested edition belong in the row or source note.

AApple AirPods 4 with Active Noise Cancellation

ANC	Codec	Hours (h)
No	Not available	6.35
No	AAC	6.9

Source6Reviewsoundguys.com/apple-airpods-4-with-active-noise-cancellation-review-124137Read 30 September 20266 h 21 min on one charge, without noise canceling or transparency mode21Reviewnotebookcheck.net/Apple-AirPods-4-ANC-review-Compact-design-colossal-sound.952120.0.htmlRead 7 October 2026Exact ANC model Spotify loop at 65 dB(A), AAC with ANC off, 6.9 h. Review explicitly says wear detection prevented ANC during fixture test despite generic chart heading incl ANC. Test endpoint full discharge implied runtime procedure, precise first/last-bud cutoff, firmware and host model unstated. Existing SoundGuys 6 h 21 min ANC-off test is separate at 75 dB SPL standardized peaks, not replaced.

BSennheiser ACCENTUM True Wireless

ANC	Codec	Hours (h)
No	AAC	8.5
Yes	AAC	5.5

Source9Reviewheadphonecheck.com/test/sennheiser-accentum-true-wirelessRead 16 October 2026Practical test with the AAC codec at a high playback volume: 8.5 hours with ANC off and 5.5 hours with ANC on. Tom's Guide measured about 6.5 hours ANC off and 5 hours ANC on at up to 70 percent volume with multipoint, and GSMArena and HiFi Oasis got about 5.5 hours ANC on with aptX. The reviewers use different volumes, so only this one test is stored. The review's total with the case is a calculation, so it is not stored.

Longest tested use per chargeiHighest earbuds-only duration among stored reviewer tests. Modes and settings may differ between tests and products.

6.9h=CalculatedFrom Battery life (measured)

8.5h=CalculatedFrom Battery life (measured)

Battery life with case (measured)iReviewer-tested total including earbuds and case recharges. Do not calculate this by multiplying one-charge runtime by claimed recharge count.

Not available

Not available

Full charge time (measured)iBuds in the case, 0 to 100 %. Measured by a reviewer

Not available

55min9Reviewheadphonecheck.com/test/sennheiser-accentum-true-wirelessRead 16 October 2026About 55 minutes to refuel the earbuds when empty. The case took 75 minutes by cable.

Weight per bud (measured)iMeasured by a reviewer, not claimed by the maker

4.4g(0.2 oz)19Review52audio.com/archives/214147.htmlRead 7 October 2026Exact ANC edition A3057 earbud/A3059 case teardown. Written measurement caption explicitly approximately 4.4 g for one earbud, separate from whole set 43.0 g and case weight. Scale image inaccessible, scale model and calibration unknown. Direct reviewer weighing report, not package weight or maker 4.3 g claim.

Not available

Microphones and calls

4 of 7 differ

Voice microphones in both earbudsiPhysical call and beamforming microphones across the pair. Excludes case microphones and vibration sensors. Shared ANC microphones can also count here when used for calls.

Not available

41Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: 2 mics per earbud, beamforming for noise reduction. Page: dual mics on each earbud.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications: 2 microphones per earbud for speech and ANC, so four across the pair.

All microphones in both earbudsiEvery physical microphone across the pair, including call and ANC microphones. Shared microphones count once. Excludes the charging case and voice vibration sensors.

619Review52audio.com/archives/214147.htmlRead 7 October 2026Exact ANC earbud complete teardown and summary physically enumerate three MEMS in one bud: inward S341, outward noise G205, tail call S341. Two earbuds give six physical microphones across pair, consistent with maker dual beamforming and inward microphone inventory. Shared roles counted once. No role-specific call/ANC count inferred.

43Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026The same two microphones per earbud serve speech and ANC, so four physical microphones in total. No feedback microphone is named.

Bone conduction voice sensoriA dedicated bone or jaw conduction sensor for detecting speech vibrations. A microphone or speech-detecting accelerometer alone does not prove this architecture.

Not available

Not available

Mic noise reduction

AI6Reviewsoundguys.com/apple-airpods-4-with-active-noise-cancellation-review-124137Read 30 September 2026"rely on AI processing that takes place on your iPhone"

DSP3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Beamforming array for the speech and ANC microphones.

Call audio bandwidthiHighest supported call-audio bandwidth. Compatible phone, operating system, call app or network requirements belong in the source note.

Not available

Not available

Mic mute controliAn earbud control that mutes the microphone during calls. Includes touch or pressure gestures and physical buttons. Phone/app-only controls do not qualify.

Yes1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Controls: press once to mute/unmute.

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026During a call tap once on either earbud to mute or unmute the microphones.

SidetoneiHear your own voice in calls

Not available

Yes9Reviewheadphonecheck.com/test/sennheiser-accentum-true-wirelessRead 16 October 2026In calls, external noise can be amplified in two intensity levels so you hear your own voice more naturally.

Connectivity

11 of 18 differ

Chip

H21Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Chip: H2 headphone chip.

Not available

Connections

Bluetooth1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Connectivity: Bluetooth 5.3 wireless technology.

Bluetooth1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Bluetooth only. The earbuds have no wired or dongle connection.

Bluetooth

5.31Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Connectivity: Bluetooth 5.3 wireless technology.

5.31Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: Bluetooth 5.3 compliant, class 1, 10 mW max.

Bluetooth codecs

AAC6Reviewsoundguys.com/apple-airpods-4-with-active-noise-cancellation-review-124137Read 30 September 2026"Bluetooth 5.3 over AAC"

SBC, AAC, aptX, LC31Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: SBC, AAC, aptX, LC3.

Bluetooth profiles

Not available

A2DP, AVRCP, HFP, TMAP, PBP1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: A2DP, AVRCP, HFP, TMAP, PBP.

LE Audio

Not available

Yes1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Page: Bluetooth 5.3, Bluetooth LE and Auracast.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Connectivity: Bluetooth Classic and LE Audio supported.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026The earbuds are certified for Bluetooth 5.3 LE Audio and Auracast broadcast audio. The codec row lists LC3.5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026Bluetooth LE Audio capable.

Auracast

Not available

Yes1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Footnote: Auracast is available via firmware update only.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Auracast broadcast audio with a function in the Smart Control app.5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026The earbuds are Bluetooth LE Audio and Auracast capable, with use at Auracast venues in the near future.

MultipointiConcurrent Bluetooth connections to multiple source devices. Pairing memory and switching through a manufacturer account alone do not qualify.

Not available

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications: number of active connections 2.8Reviewsoundguys.com/sennheiser-accentum-true-wireless-review-116713Read 16 October 2026Bluetooth multipoint lets you pair to multiple devices simultaneously.9Reviewheadphonecheck.com/test/sennheiser-accentum-true-wirelessRead 16 October 2026Multipoint connections with two devices simultaneously.11Reviewtomsguide.com/audio/earbuds/sennheiser-accentum-true-wirelessRead 16 October 2026The review says the earbuds pair to two devices simultaneously with multipoint.

Multipoint devicesiMaximum source devices concurrently connected by Bluetooth, not the number remembered in pairing history.

Not available

23Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications: number of active connections 2. Audio plays from one device at a time.9Reviewheadphonecheck.com/test/sennheiser-accentum-true-wirelessRead 16 October 2026Multipoint connections with two devices simultaneously.

Multipoint with LDACiMany buds turn multipoint off on LDAC

Not available

Not available

Paired devices rememberediMaximum remembered Bluetooth source pairings. This is separate from simultaneous multipoint connections.

Not available

63Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026The earbuds store the connection profiles of up to six paired Bluetooth devices.

Automatic switching between own devicesiThrough the maker's account

Yes11Owner's manualsupport.apple.com/guide/airpods/switch-airpods-between-apple-devices-dev228ba3df8/webRead 30 September 2026Automatic switching supported for AirPods 3/4/5 and Pro with compatible Apple devices signed into the same Apple Account.

Not available

Fast pairing

Apple one-tap setup16Maker product pagesupport.apple.com/en-us/104989Read 7 October 2026Exact AirPods 4 both editions setup instructions open case near iPhone, setup animation, tap Connect. Compatible iPhone at least iOS 18, later feature requirements separate. This is Apple setup interaction, not Google Fast Pair or Bluetooth pairing memory.

Not available

Audio sharingiShare one stream with a second pair

Yes6Reviewsoundguys.com/apple-airpods-4-with-active-noise-cancellation-review-124137Read 30 September 202612Owner's manualsupport.apple.com/guide/airpods/share-audio-on-iphone-or-ipad-dev3786f35c8/webRead 30 September 2026Share Audio instructions and Change the volume/listening mode paragraph explicitly cover AirPods 4 ANC, AirPods 5 and AirPods Pro. Both headphone sets pair to a supported iPhone/iPad.

Not available

Wireless range (claimed)

Not available

Not available

Wireless receiveri2.4 GHz dongle

Not available

Not available

Receiver connector

Not available

Not available

Simultaneous 2.4 GHz and Bluetooth audioiBoth connection types can play audio together. Quick switching between independent modes does not qualify.

Not available

Not available

Latency

1 of 3 differ

Low latency mode

Not available

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Low Latency mode in the app reduces the delay between audio and video further. It works with all Bluetooth codecs and can shorten the range.9Reviewheadphonecheck.com/test/sennheiser-accentum-true-wirelessRead 16 October 2026The app can activate low-latency mode for games.

Claimed latency

Not available

Not available

Lowest claimed latency

Not available

Not available

Compatibility

2 of 4 differ

PlatformsiPlatforms with documented audio support. App availability and advanced features can be more limited. Edition-specific support is listed in variants.

iOS, macOS, Android1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Apple lists iPhone, iPad, Mac, Apple Watch, Apple TV and Vision Pro, and says AirPods work as Bluetooth headphones with non-Apple devices6Reviewsoundguys.com/apple-airpods-4-with-active-noise-cancellation-review-124137Read 30 September 2026Android pairing described in the review

Not available

Connection per platformiDocumented audio connection for each platform. USB-C phone routes require a compatible port. Platform edition and microphone restrictions belong in source notes or feature requirements.

Not available

Not available

Features that need a specific deviceiDevice, operating system, firmware, codec, content, account or region requirements for a named feature.

AApple AirPods 4 with Active Noise Cancellation

Feature	Needs
Live Translation	Apple Intelligence-enabled iPhone running iOS 26 and later
Personalized Spatial Audio profile	iPhone with TrueDepth camera
Find My	iOS 26 or later
Lossless audio with Apple Vision Pro	Compatible Apple Vision Pro and software. The maker names AirPods 4 with Active Noise Cancellation. Ultra-low latency is unavailable in Japan. Ordinary Bluetooth playback uses AAC.

Source1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Exact technical requirements cover compatible Apple devices and firmware, TrueDepth camera for the Spatial Audio profile and Apple Intelligence iPhone with iOS 26 for Live Translation. The Vision Pro lossless route is supported separately by the current maker 118522 article.33Maker product pagesupport.apple.com/en-us/118522Read 7 October 2026Independently read during verification. Apple names AirPods 4 with Active Noise Cancellation for lossless audio with Apple Vision Pro. Ultra-low latency is unavailable in Japan. This proves the route, without a device-wide maximum bit depth or sample rate.

BSennheiser ACCENTUM True Wireless

Feature	Needs
Auracast	Firmware update. Broadcasts are chosen in the Sennheiser Smart Control app.
Eco mode	Only with sources that support aptX. The mode turns aptX off and sends SBC or AAC.
Claimed battery life	Manual test: smartphone at 1 m, Bluetooth AAC codec, volume 50 percent, ANC off. The US spec table says iPhone at a mid volume of 85 dB.

Source1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Footnote on Auracast and the spec table test condition.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Eco mode section and Operating time row of the specifications.

Official licence

Not available

Not available

Battery and charging

9 of 13 differ

Battery per budiBattery cell capacity of one earbud. The source note states typical or rated capacity. Charging input current is not capacity.

Not available

55mAh1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: left and right earbud 55 mAh.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Battery type: left and right earbud 55 mAh.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications: earbuds 3.7 V, 55 mAh, 0.2 Wh.

User-replaceable earbud batteryiThe maker documents normal battery replacement by the user with its approved procedure and tools. Service or recycling disassembly does not count.

Not available

Not available

Claimed battery lifeiManufacturer maximum runtime under the stated mode, codec and spatial processing state. Name the spatial or immersive processing mode and other conditions in source notes. Omit unspecified settings. with_case false means one charge of the earbuds. true means earbuds plus case recharges.

AApple AirPods 4 with Active Noise Cancellation

Mode	Includes case recharges	Hours (h)
ANC on	No	4
ANC off	No	5
ANC on	Yes	20
ANC off	Yes	30

Source1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Battery and footnotes 13-14: single charge 4 h ANC on /5 h off, total with case 20 h on /30 h off. iPhone 16 Pro Max, 50% volume, 256 kbps AAC playlist, spatial audio and Conversation Awareness off.

BSennheiser ACCENTUM True Wireless

Mode	Codec	Includes case recharges	Hours (h)
ANC off	AAC	No	8
ANC on	Not available	No	6
ANC off	AAC	Yes	28

Source1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: up to 8 hours with ANC off, 6 hours with ANC on and 28 hours overall with the case. Test condition: iPhone, mid volume level 85 dB. The 28 hours match 8 hours plus 20 hours from the case, so they are stored as an ANC-off total.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Battery lifespan: up to 8 hours ANC off, up to 6 hours ANC on, up to 28 hours overall with the case. Test condition: iPhone, mid volume level 85 dB.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications, Operating time: 8 hours with the earbud battery and 28 hours with the case battery. Test conditions: smartphone at 1 m, Bluetooth AAC codec, volume 50 percent, ANC off.

Longest claimed use per chargeiHighest earbuds-only runtime among all stored modes. This can be ANC off, Hearing Aid, heart-rate or call use. Read the battery table and source conditions.

5h=CalculatedFrom Claimed battery life

8h=CalculatedFrom Claimed battery life

Playback per charge with ANC (claimed)iHighest claimed earbuds-only playback with ANC enabled. Codec and spatial-audio conditions belong in the source note.

4h=CalculatedFrom Claimed battery life

6h=CalculatedFrom Claimed battery life

Playback per charge without ANC (claimed)iHighest claimed earbuds-only playback with ANC disabled. Codec and volume conditions belong in the source note.

5h=CalculatedFrom Claimed battery life

8h=CalculatedFrom Claimed battery life

Total with case (claimed)iHighest claimed runtime including the initial earbud charge and all case recharges. It is not the case recharge runtime alone.

30h=CalculatedFrom Claimed battery life

28h=CalculatedFrom Claimed battery life

Total with case and ANC (claimed)iClaimed total playback with ANC, including the initial earbud charge and case recharges.

20h=CalculatedFrom Claimed battery life

Not available

Talk time (claimed)

Not available

Not available

Full charge time, budsiTime to charge discharged earbuds to full in the case. Excludes charging the case itself or a combined buds-and-case result.

Not available

Not available

Charging guidanceiPublished charging guidance or estimates that do not separate earbuds and case. Preserve the maker’s component scope and limits. Do not assign an unspecified or combined estimate to a component-specific numeric field.

Not available

A full charge of the case and the earbuds together takes about 1.5 hours. Ambient temperatures below 15 C or above 30 C and Qi wireless charging lengthen the time. Charging works between 5 C and 35 C. The case takes 5 V over USB-C. The spec sheet and manual say 500 mA at most and the US page says 1000 mA at most. A battery protection mode charges the earbuds to about 80 percent.1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: charging time about 1.5 hours for a full charge, with the temperature remark. Power supply 5 V, 1000 mA max, USB-C and Qi.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Power supply: 5 V, 500 mA max over USB-C. The US page prints 1000 mA max. Charging temperature 5 to 35 C.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026A full charge cycle of the case and the earbuds takes about 1.5 hours. The battery protection mode charges to about 80 percent. The case input is 5 V, 500 mA max.

Quick charge timeiCharge duration corresponding to quick_charge_playback_h. Source note states earbuds-only or case-inclusive charging and playback settings.

5min1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Exact AirPods 4 ANC Battery section: five minutes in the case provides around one hour of listening under the published test conditions.

10min1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: after 10 minutes of charging, 1 hour of music playtime.5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026Quick charging over USB gives up to 1 hour of playback in about 10 minutes.

Earbud playback after quick chargeiEarbuds-only runtime after quick_charge_min of charging. A claimed case-inclusive total does not qualify. ANC, codec and volume conditions belong in the source note.

1h1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026"5 minutes in the case provides around 1 hour of listening time"

1h1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: after 10 minutes of charging, 1 hour of music playtime. Volume and ANC state are not stated.5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026Up to 1 hour of playback in about 10 minutes.

Charging case

4 of 10 differ

Case batteryiCharging-case battery cell capacity. The source note distinguishes typical, rated and output capacity. USB output capacity alone does not qualify.

345mAh19Review52audio.com/archives/214147.htmlRead 7 October 2026Exact China retail A3057 earbud/A3059 ANC case package. Written case-lid and actual S2103 battery captions explicitly rated 345 mAh, 3.852 V, 1.329 Wh. Charging input/output current separate. Direct public article independently downloaded and read. No non-ANC case or guessed typical capacity.

400mAh1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: charging case 400-420 mAh. The lower figure is stored. The manual lists 1.48 to 1.56 Wh at 3.7 V.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Battery type: charging case 400-420 mAh.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications: charging case 3.7 V, 400-420 mAh, 1.48-1.56 Wh. The lower figure is stored.

User-replaceable case batteryiThe maker documents normal case battery replacement by the user with its approved procedure and tools. Service or recycling disassembly does not count.

Not available

Not available

Case charging port

USB-C1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Charging Case works with USB-C.

USB-C1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: USB charging via USB-C socket at the charging case.

Case full charge timeiBy cable, 0 to 100 %. A time the maker gives with the earbuds inside the case counts, and the source note says so.

Not available

Not available

Wireless charging

Yes1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Charging Case works with Apple Watch charger and Qi-certified chargers.

Yes1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Page: convenient Qi wireless or USB-C charging.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026The case charges by USB cable or on a Qi-compatible wireless charger.5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026Both USB-C and Qi wireless charging are available in the case.

Wireless standardsiDocumented case charging standards or supported chargers. Magnetic alignment alone does not establish Qi2 certification.

Qi, Apple Watch charger1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Charging Case works with Apple Watch charger and Qi-certified chargers.

Qi1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Page: Qi wireless charging.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Qi-compatible wireless charging station.

Wireless charging poweriHighest wireless charging input the maker states for the case. The output of a charging pad does not count.

Not available

Not available

Speaker in caseiAn audio speaker physically in the charging case, for locating or status sounds. A microphone in the case is separate.

Yes1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Charging Case includes a speaker for Find My.

Not available

Screen on case

Not available

Not available

Case works as audio transmitteriCase relays external source audio through USB or an analog audio input. A case microphone for recording or calls does not qualify.

No22Reviewsoundguys.com/apple-airpods-4-with-active-noise-cancellation-review-124137Read 7 October 2026Exact ANC model connection paragraph explicitly AirPods do not relay wired source audio through charging case, only wireless source playback. Case USB-C charging and Find My speaker do not establish audio transmission.

Not available

Controls

4 of 5 differ

ControlsiPressure is a force sensor that does not move, such as a stem you squeeze. Button is a key that moves when pressed.

Pressure, Head gestures, Voice commands1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Force sensor on the stem, "Hey Siri", and Siri Interactions head nods

Touch1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Page: touch interface.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Touch control surface on each earbud.

Earbud volume controliHow earbud controls adjust volume, including a voice command if supported. Phone or app controls alone do not qualify.

Voice6Reviewsoundguys.com/apple-airpods-4-with-active-noise-cancellation-review-124137Read 30 September 2026No swipe volume. Volume through "Hey Siri"

Touch3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Touch and hold the left surface to lower the volume and the right surface to raise it.

Gestures

Press once, Press twice, Press three times, Press and hold, Nod or shake head (Siri Interactions)1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Controls enumerates one/two/three press, press-and-hold and Siri nod/shake interactions.

Right tap once: play or pause, answer a call, Left tap once: transparency mode on or off, Left tap twice: previous track, Right tap twice: next track, Left tap three times: ANC on or off, Right tap three times: voice assistant, Touch and hold left: volume down, Touch and hold right: volume up, Tap twice in a call: end a call or reject an incoming call, Tap once in a call: mute or unmute the microphones3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Operation chapter: tap and hold gestures for volume, transparency, ANC, voice assistant, playback and calls. Controls can be changed in the app.

Remappable controls

Yes15Owner's manualsupport.apple.com/en-euro/guide/airpods/dev57e5b7e58/webRead 7 October 2026Exact AirPods 4 supported in press-and-hold function reassignment and call end/mute Press Once/Press Twice switching, on compatible iPhone/iPad/Mac. Camera Control action can be Press Once or Press and Hold. Not arbitrary independent remapping of every gesture.

Yes1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Page: the customizable touch interface controls playback, calls and voice assistant.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026In the app you can customise control functions, select presets or switch them off. Some basic functions such as phone control cannot be changed.

Voice assistant

Siri1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Controls: Siri voice commands.

Siri, Google Assistant3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Triple tap on the right earbud starts the voice assistant of your device, for example Siri or Google Assistant.

Sensors and health

3 of 9 differ

In-ear detection

Yes10Owner's manualsupport.apple.com/guide/airpods/play-audio-on-your-airpods-dev216d7c746/webRead 30 September 2026Pause audio: specifically AirPods 3/4/5/Pro remove one to pause, return it to resume. Automatic ear detection can be disabled.

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Smart Pause: music pauses when you take an earbud out and resumes when you put it back. It can be turned off in the app.

Sensors

Optical in-ear sensor, Motion-detecting accelerometer, Speech-detecting accelerometer, Force sensor1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Sensors explicitly list optical in-ear, motion-detecting and speech-detecting accelerometers and force sensor.

Not available

Heart rate sensor

Not available

Not available

Skin temperature sensingiA documented skin temperature sensor. This is separate from the operating temperature range or a heart-rate sensor.

Not available

Not available

Hearing aid featureiAmplification for mild to moderate hearing loss

No6Reviewsoundguys.com/apple-airpods-4-with-active-noise-cancellation-review-124137Read 30 September 2026Exact-model FAQ: No hearing-aid functionality.

Not available

Medical clearances

Not available

Not available

Hearing testiA documented hearing assessment feature, including consumer sound-personalization tests. Medical diagnostic clearance must be stated separately.

Not available

Yes1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Sound Check and Sound Personalization are listening preference tests. No medical hearing test is claimed.8Reviewsoundguys.com/sennheiser-accentum-true-wireless-review-116713Read 16 October 2026Sound Check listening test. It is not a medical hearing test.

Hearing protectioniLimits sudden loud sounds

Not available

Not available

Health features

Not available

Not available

Fit and durability

5 of 7 differ

Ear tips includediTip sizes supplied with the product, including the pair fitted to the earbuds. Do not list separately sold sizes as included.

Not available

XS, S, M, L1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026What's in the box: ear tip sets XS, S, M and L.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Four silicone ear tip sizes XS, S, M and L. Size M is fitted on delivery.

Ear tip materials

Not available

Silicone1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026The page names ear tips. The manual says silicone.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Silicone ear tips.

StabilisersiPhysical stabilizing fittings or structures. Stability bands are separate from fins, wings and ear hooks.

None6Reviewsoundguys.com/apple-airpods-4-with-active-noise-cancellation-review-124137Read 30 September 2026"No stabilizer fin"

Not available

Ear tip fit test

Not available

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Fit Test function in the Smart Control app.

Dust and water rating, buds

IP541Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Exact AirPods 4 ANC dust, sweat and water resistance is IP54 under IEC 60529. Other AirPods generations are excluded.

IP541Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: IP54, splash resistant, earbuds only.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Weather resistance: IP54, earbuds only.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Earbuds splash resistant to IP54. The charging case is not splash proof.

Dust and water rating, case

IP541Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026"Products including charging case ... have a rating of IP54 under IEC standard 60529"

Not available

Water resistance depth

Not available

Not available

Software

5 of 6 differ

Companion app

Not available

Sennheiser Smart Control1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: Sennheiser Smart Control app. The page also names a Smart Control Plus app.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Sennheiser Smart Control app.

App platforms

Not available

Android, iOS1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: Smart Control app for iOS and Android.

User firmware updates

Yes1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Audio and Live Translation footnotes explicitly require latest AirPods firmware.

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Free firmware updates through the Smart Control app.

Finding network

Apple Find My1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Find My functionality requires iOS 26 or later

Not available

Precision findingiUWB in the case

No24Reviewengadget.com/audio/headphones/apple-airpods-4-review-pro-features-for-everyone-120032046.htmlRead 7 October 2026Exact AirPods 4 ANC case offers proximity view, without Precision Finding.28Owner's manualsupport.apple.com/guide/airpods/find-your-airpods-dev8e8b93d71/webRead 7 October 2026Exact current maker guide distinguishes general nearby finding from precise case arrows/distance limited to Pro 2 and Pro 3. Notebookcheck exact ANC model independently says no UWB. Audible case speaker and proximity view are separate.

Not available

Live translation

Yes1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Live Translation feature named under exact model. Device, language and region conditions are retained in feature requirements and notes.

Not available

Dimensions and weight

4 of 4 differ

Weight per budiMass of one earbud. Tip size and approximate values belong in the source note. Do not store pair or case-inclusive mass.

4.3g(0.2 oz)1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Size and Weight named per-bud grams and case height, width, depth rows.

5.5g(0.2 oz)1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: 5.5 g single earbud.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Product weight: 5.5 g single earbud.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications: earbud approx. 5.5 g each.

Bud dimensionsiDimensions of one earbud on the explicitly identified width, height and depth axes. An unlabeled tuple cannot establish those axes.

Width18.3Height30.2Depth18.1mm(0.7 × 1.2 × 0.7 in)1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Size/Weight: each bud H30.2/W18.3/D18.1 mm, 4.3 g.

Not available

Case weightiCharging case mass excluding earbuds. Case-inclusive product mass does not qualify unless the source explicitly gives the empty-case figure.

34.7g(1.2 oz)1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Size/Weight: case H46.2/W50.1/D21.2 mm, 34.7 g.

41g(1.4 oz)1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: 41 g charging case. The 52 g total equals the case plus two earbuds, so this is the empty case.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Product weight: 41 g charging case.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications: charging case approx. 41 g. Both earbuds and case approx. 52 g.

Case dimensionsiCharging-case width, height and depth on explicitly identified source axes. Report conflicting axis labels rather than reorder a tuple by appearance.

Width50.1Height46.2Depth21.2mm(2 × 1.8 × 0.8 in)1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Size and Weight named per-bud grams and case height, width, depth rows.

Not available

Certifications

0 of 3 differ

Hi-Res AudioiThe Japan Audio Society logos. Hi-Res Audio Wireless is also written Hi-Res Wireless Audio.

Not available

Not available

Communication certifications

Not available

Not available

FCC IDs

BCG-A3055, BCG-A3056, BCG-A305925Regulatory filingfccid.io/BCGA3055Read 7 October 2026Public FCC grant mirrors identify BCG-A3055 and BCG-A3056 wireless earbuds, BCG-A3059 wireless charging case, Apple Inc., 9 September 2024 grants. Exact Apple model identification maps these to ANC edition. China A3057 not automatically assigned same FCC code. Proprietary 5/6 GHz authorization is not standard Wi-Fi/Auracast capability. Confidential descriptions not read.26Regulatory filingfccid.io/BCGA3056Read 7 October 2026Public exact Apple grant table identifies BCG-A3056. This is the listed earbud/case authorization, not an invented combined identifier.27Regulatory filingfccid.io/BCGA3059Read 7 October 2026Public exact Apple grant table identifies BCG-A3059. This is the listed earbud/case authorization, not an invented combined identifier.

2A3ULATW14Regulatory filingcdn.sennheiser-hearing.com/product-documents/product-downloads/accentum-true-wireless/safety_instruction/Compliance_Information_ACCENTUM_True_Wireless.pdfRead 16 October 2026Compliance Information: FCC ID 2A3ULATW1 on the earbud models ATW1 R and ATW1 L. The charging case ATW1 C shows no FCC ID.

Other certifications

Not available

Not available

In the box

2 of 2 differ

In the box

AirPods 4 with Active Noise Cancellation, Charging Case (USB-C) with speaker, Documentation1Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026USB-C charge cable sold separately

Earbud R (ATW1 R) and earbud L (ATW1 L), Charging case (ATW1 C) with built-in battery and wireless charging, USB cable with USB-C and USB-A connector, approx. 0.4 m, Silicone ear tips in sizes XS, S, M (fitted on delivery) and L, Quick guide, Safety guide1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026What's in the box and the manual's delivery list.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Scope of delivery chapter.

Cables included

AApple AirPods 4 with Active Noise Cancellation

Not available

BSennheiser ACCENTUM True Wireless

Type	Length (m)	Count
USB-C to USB-A	0.4	1

Source1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026What's in the box: one USB-C charging cable.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026USB cable with USB-C and USB-A connector, approx. 0.4 m.

Links

Not compared

Product page

support.apple.com/en-us/1212041Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Archived exact 2024 ANC edition technical specifications. Current generic AirPods page describes AirPods 5.

us.sennheiser-hearing.com/products/accentum-true-wireless1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026US maker product page.

Spec sheet

support.apple.com/en-us/1212041Maker product pagesupport.apple.com/en-us/121204Read 30 September 2026Opened document title identifies exact generation. Stored URL resolves to this technical specification.

stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdf2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Sennheiser English spec sheet, as hosted by a distributor.

Manual

support.apple.com/guide/airpods/welcome/web7Owner's manualsupport.apple.com/guide/airpods/welcome/webRead 30 September 2026AirPods User Guide, shared current guide includes AirPods 4 ANC.

www.bax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdf3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Dutch manual, version 04/24 A01, hosted by a retailer. It is the maker's manual for ATW1. The English copy was not reachable on the maker's CDN.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

Warranty

0 of 1 differ

Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

1year13Maker product pagesupport.apple.com/airpods/repairRead 7 October 2026Apple US AirPods service warranty explicitly one year from purchase against manufacturing issues, separate from consumer-law rights and optional AppleCare coverage. Source market US, standard hardware warranty.

1year1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026US store: 1-year manufacturer warranty. The EU manual says 24 months.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026EU manual: the maker grants a 24-month warranty. The US store says 1 year and is stored.

Both are also in the API. Back to all earbuds.