Earbuds / Compare

Shokz OpenFit 2+ vs soundcore AeroFit 2

A

Product A: Shokz

OpenFit 2+

65 of 166 known

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B

Product B: soundcore

AeroFit 2

58 of 166 known

Change soundcore AeroFit 2

Compare the Shokz OpenFit 2+ with

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All 166 fields

Every value links to where we found it.

Only differences

AShokz OpenFit 2+

Bsoundcore AeroFit 2

General

6 of 8 differ

Series

OpenFit1Maker product pageshokz.com/products/openfit2plusRead 15 October 2026The maker groups the OpenFit 2+ with the OpenFit 2 as the OpenFit 2 Series. The OpenFit line is stored as the series, as for the OpenFit 2.

AeroFit3Maker product pageankerjapan.com/products/a3874Read 13 October 2026Listed with the Soundcore AeroFit series.

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

T921, T921-ST-BK-US, T921-ST-GY-US, T921-ST-PR-US, T921-ST-HX-US, T921BK, T921GY4Maker product pagede.shokz.com/products/openfit2-seriesRead 15 October 2026Spec table row Modellnummer: SHOKZ T921.5Maker product pagede.shokz.com/products/openfit2-series.jsRead 15 October 2026German store product data: SKU T921BK (Schwarz) and T921GY (Grau). Gift box SKUs for both colours are not stored.6Maker product pageshokz.com/products/openfit2plus.jsRead 15 October 2026US store product data: SKUs T921-ST-BK-US, T921-ST-GY-US, T921-ST-PR-US and T921-ST-HX-US (HYROX Co-branded Edition).

A3874, A3874Z11, A3874Z21, A3874Z61, A3874Z31, A3874Z81, A3874G11, A3874G21, A3874G61, A3874G311Maker product pageus.soundcore.com/products/a3874-aerofit-2-open-earbudsRead 13 October 2026Store variants A3874Z11, Z21, Z61, Z31 and Z81. The EU store lists A3874G11, G21, G61 and G31.5Measurementsoundguys.com/anker-soundcore-aerofit-2-review-126119Read 13 October 2026

GTIN / EAN

810173482424, 810173482431, 810173486194, 8101734887236Maker product pageshokz.com/products/openfit2plus.jsRead 15 October 2026US store barcode field: 810173482424 Black, 810173482431 Grey, 810173486194 Purple, 810173488723 HYROX edition.

194644036393, 194644210137, 194644210144, 194644210151, 194644262334, 194644284701, 194644284992, 194644284961, 1946442849851Maker product pageus.soundcore.com/products/a3874-aerofit-2-open-earbudsRead 13 October 2026Variant barcodes from the US store product data and the EU store product data.

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

5 June 20259Press articlebasic-tutorials.de/news/shokz-openfit-2-plusRead 15 October 2026Article of 6 June 2025: the OpenFit 2+ is available from 5 June 2025.

Not available

Status

Available6Maker product pageshokz.com/products/openfit2plus.jsRead 15 October 2026US store lists Black, Grey and Purple as available on 2026-10-15.

Available6Spec databasesoundguys.com/product/soundcore-aerofit-2Read 13 October 2026Listed with a current Amazon US price.

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.

$199.951Maker product pageshokz.com/products/openfit2plusRead 15 October 2026The US store lists 199.95 USD. SoundGuys confirms the 22 September 2025 launch price.8Press articlesoundguys.com/shokz-openfit-2-debuts-with-dolby-audio-144647Read 15 October 2026SoundGuys news, 22 Sep 2025: the OpenFit 2+ launched at 199.95 USD, 20 USD above the OpenFit 2.12Reviewtechradar.com/health-fitness/fitness-headphones/i-went-for-a-run-with-the-all-new-shokz-openfit-2-and-theyre-already-threatening-to-become-my-go-to-running-headphonesRead 15 October 2026TechRadar review published 4 June 2025 (UTC): the OpenFit 2+ costs 199.95 USD and 179 GBP, available to order now. Official pricing for other regions was still to be confirmed.

$99.995Measurementsoundguys.com/anker-soundcore-aerofit-2-review-126119Read 13 October 2026Spec table lists a price of $99.99.7Reviewdigitaltrends.com/home-theater/soundcore-aerofit-2-reviewRead 13 October 2026MSRP $100.

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.

€1995Maker product pagede.shokz.com/products/openfit2-series.jsRead 15 October 2026Germany. The store lists 199.00 EUR incl. VAT for both colours. Kopfhoerer.de reports the same recommended price at the June 2025 launch.9Press articlebasic-tutorials.de/news/shokz-openfit-2-plusRead 15 October 2026Germany: 199,00 EUR.10Press articlekopfhoerer.de/news/shokz-openfit-2-plusRead 15 October 2026Recommended retail price 199,00 EUR, black and grey, available from now. Page last updated 5 June 2025.

Not available

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

US, DE1Maker product pageshokz.com/products/openfit2plusRead 15 October 2026US store with US dollar prices. Documented subset.5Maker product pagede.shokz.com/products/openfit2-series.jsRead 15 October 2026German store with euro prices. Documented subset.9Press articlebasic-tutorials.de/news/shokz-openfit-2-plusRead 15 October 2026German market start.

US, EU1Maker product pageus.soundcore.com/products/a3874-aerofit-2-open-earbudsRead 13 October 20262Maker product pageeu.soundcore.com/products/a3874-aerofit-2-open-earbuds.jsRead 13 October 2026EU store product data with SKUs A3874G11, G21, G61 and G31.

ColoursiThe maker's own colour names

Black, Grey, Purple, HYROX Co-branded Edition1Maker product pageshokz.com/products/openfit2plusRead 15 October 2026Store options: Black, Grey, Purple and HYROX Co-branded Edition. The HYROX edition shows as unavailable on 2026-10-15.6Maker product pageshokz.com/products/openfit2plus.jsRead 15 October 2026Option names: OpenFit 2+ Black, Grey, Purple, HYROX Co-branded Edition.

Midnight Black, Pearl White, Minty Green, Midnight Blue, Brown, Black, Beige, Navy Blue1Maker product pageus.soundcore.com/products/a3874-aerofit-2-open-earbudsRead 13 October 2026US store colours Midnight Black, Pearl White, Minty Green, Midnight Blue and Brown. EU store colours Black, Beige, Minty Green and Navy Blue. The EU store spells one colour Minity Green.

Segment

Sport1Maker product pageshokz.com/products/openfit2plusRead 15 October 2026The maker lists the OpenFit 2+ under Workout and Lifestyle open earbuds. The FAQ says it suits running, workouts, office work and home.

Sport6Spec databasesoundguys.com/product/soundcore-aerofit-2Read 13 October 2026Catalogued under sports and fitness headphones.

Design

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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.

Open-ear1Maker product pageshokz.com/products/openfit2plusRead 15 October 2026Open-ear design, air conduction. The maker FAQ says it is not a bone conduction headphone.

Open-ear1Maker product pageus.soundcore.com/products/a3874-aerofit-2-open-earbudsRead 13 October 2026Open-ear headphones with 4-level adjustable ear hooks.

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

Ear hook2Maker product pageshokz.com/pages/openfit2plusRead 15 October 2026Flexible ear hook with an integrated nickel-titanium alloy. This is the OpenFit 2 Series page, which covers the OpenFit 2 and the OpenFit 2+.

Ear hook1Maker product pageus.soundcore.com/products/a3874-aerofit-2-open-earbudsRead 13 October 2026

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

Either bud1Maker product pageshokz.com/products/openfit2plusRead 15 October 2026FAQ: both earbuds can be used independently and each keeps its button functions.7Owner's manualcdn.shopify.com/s/files/1/0620/0642/7873/files/OPENFIT_2_User_Guide.pdfRead 15 October 2026Single Earbud Control page: both earbuds are designed for independent use, mono playback or calls.

Either bud4Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3874Manual.pdfRead 13 October 2026The guide has a section for single earbud use.

RGB lighting

Not available

Not available

Drivers and sound

8 of 17 differ

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

AShokz OpenFit 2+

Type	Role	Count per earbud
Dynamic	Woofer	1
Not available	Tweeter	1

Source2Maker product pageshokz.com/pages/openfit2plusRead 15 October 2026DualBoost: an independent high-frequency unit and a 21 mm x 11 mm custom dynamic low-frequency driver. The maker gives no technology for the high-frequency unit and no circular diameter, so only the woofer type is stored. One of each per earbud is read from the description.

Bsoundcore AeroFit 2

Type	Count per earbud
Dynamic	1

Source1Maker product pageus.soundcore.com/products/a3874-aerofit-2-open-earbudsRead 13 October 202620 mm x 11.5 mm racetrack drivers with BassTurbo acoustics. The driver is rectangular, so no circular diameter is stored.3Maker product pageankerjapan.com/products/a3874Read 13 October 2026Dynamic driver, 20 mm x 11.5 mm.

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

Not available

Dynamic3Maker product pageankerjapan.com/products/a3874Read 13 October 2026Dynamic driver in the comparison table.

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

Not available

Not available

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

2=CalculatedFrom Drivers per bud

1=CalculatedFrom Drivers per bud

Diaphragm material

Custom composite diaphragm with a polymer surround and a PEN dome-shaped inner cap (low-frequency driver)2Maker product pageshokz.com/pages/openfit2plusRead 15 October 2026DualBoost section: custom composite diaphragm with a high-performance polymer surround and a PEN dome-shaped inner cap, for the OpenFit 2 Series.

Not available

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

Min50 HzMax16 kHz3Maker product pageshokz.com/pages/openfit2-compare-specRead 15 October 2026Compare table row Speaker Frequency Response, OpenFit 2+ column: 50 Hz - 16 kHz. Maker figure. Codec and conditions are not stated.

Min20 HzMax40 kHz4Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3874Manual.pdfRead 13 October 202620 to 20 kHz, and 20 to 40 kHz with LDAC enabled.

Impedance

Not available

16Ω4Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3874Manual.pdfRead 13 October 2026

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

Not available

Not available

Sensitivity reference

Not available

Not available

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

Not available

Not available

Personalised soundiA profile from a hearing test or ear scan

Not available

Not available

Onboard EQ

Not available

Not available

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

511Reviewsoundguys.com/shokz-openfit-2-review-worth-the-20-upgrade-150051Read 15 October 2026Review (firmware EU_V_3, Shokz app 5.6.5): the custom 5-band equalizer targets 64 Hz, 100 Hz, 1 kHz, 4 kHz and 8 kHz.

87Reviewdigitaltrends.com/home-theater/soundcore-aerofit-2-reviewRead 13 October 2026Optional 8-band equalizer in the app. The French guide also names eight sliders on the custom equalizer page.

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

Standard, Vocal, Bass Boost, Treble Boost2Maker product pageshokz.com/pages/openfit2plusRead 15 October 2026The Shokz App lets you customize your sound with 4 pre-set EQ modes (Standard, Vocal, Bass Boost, Treble Boost) or create your own with 2 custom EQs.

Not available

Volume limit

Not available

Not available

Spatial audio

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

Dolby Audio2Maker product pageshokz.com/pages/openfit2plusRead 15 October 2026Dolby Audio is a toggle in the Shokz App for the OpenFit 2+ only. The maker describes a rich, expansive soundstage. The user guide says immersive surround sound. SoundGuys found no genuine spatial positioning. No head tracking is claimed.

3D Surround Sound3Maker product pageankerjapan.com/products/a3874Read 13 October 2026Supports 3D audio.7Reviewdigitaltrends.com/home-theater/soundcore-aerofit-2-reviewRead 13 October 20263D Surround Sound setting in the app.

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

Not available

Not available

Noise cancelling

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Active noise cancelling

Not available

No3Maker product pageankerjapan.com/products/a3874Read 13 October 2026Noise cancelling is not available on the AeroFit 2.

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

Not available

Not available

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

Not available

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

Not available

Not available

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

Not available

Not available

Adjustable transparency

Not available

Not available

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

Not available

Not available

Conversation detection

Not available

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.

Not available

Not available

Measured

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

SoundGuys: sub-bass below 100 Hz is significantly weak. Upper mids and treble stay 3 to 5 dB below the SoundGuys preference curve, with no harsh sibilance. Firmware EU_V_3, Shokz app 5.6.5.11Reviewsoundguys.com/shokz-openfit-2-review-worth-the-20-upgrade-150051Read 15 October 2026Objective Measurements section: SoundGuys lab frequency response against its preference curve. Unit provided by Shokz, firmware EU_V_3, app 5.6.5. The EQ and Dolby Audio state is not stated.

The bass rolls off steeply below about 125 Hz. Between 1.6 kHz and 6.3 kHz the response sits 7 to 16 dB above the SoundGuys preference curve.5Measurementsoundguys.com/anker-soundcore-aerofit-2-review-126119Read 13 October 2026Measured against the SoundGuys preference curve in the SoundGuys lab, from the product page data points.6Spec databasesoundguys.com/product/soundcore-aerofit-2Read 13 October 2026Lab data points on the product page, SoundGuys preference curve.

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.

Not available

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.

Not available

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

Not available

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

SoundGuys recorded call demos in ideal, office, street, windy and reverberant conditions. Office and street noise is filtered out almost completely. In wind the AI processing sometimes cuts parts of words. No numeric result is published.11Reviewsoundguys.com/shokz-openfit-2-review-worth-the-20-upgrade-150051Read 15 October 2026Call clarity section with recorded demos in five conditions. Qualitative. No numeric measurement is published.

Clear voices in ideal conditions. Not especially good at rejecting background noise in the simulated office test. Voices stay audible in the windy test.5Measurementsoundguys.com/anker-soundcore-aerofit-2-review-126119Read 13 October 2026Demo recordings in ideal, office, street, windy and reverberant conditions. Firmware 1.42 and app 3.7.3.

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.

Not available

Not available

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

Not available

Not available

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

Not available

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

Not available

Not available

Microphones and calls

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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.

41Maker product pageshokz.com/products/openfit2plusRead 15 October 2026Two microphones in each earbud for calls. The user guide says the microphones are exclusively for voice calls.

43Maker product pageankerjapan.com/products/a3874Read 13 October 2026Call noise reduction listed as 4 mic and AI.6Spec databasesoundguys.com/product/soundcore-aerofit-2Read 13 October 2026

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.

41Maker product pageshokz.com/products/openfit2plusRead 15 October 2026Two microphones in each earbud, four across the pair. Shokz German page says four microphones.

Not available

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

AI1Maker product pageshokz.com/products/openfit2plusRead 15 October 2026Maker heading: AI-Powered, Crystal-Clear Calls, with two microphones in each earbud.

AI3Maker product pageankerjapan.com/products/a3874Read 13 October 2026

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.

Not available

Not available

SidetoneiHear your own voice in calls

Not available

Not available

Connectivity

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Chip

Not available

Not available

Connections

Bluetooth1Maker product pageshokz.com/products/openfit2plusRead 15 October 2026Bluetooth only. No other connection is listed.

Bluetooth3Maker product pageankerjapan.com/products/a3874Read 13 October 2026Bluetooth 5.4 only.

Bluetooth

5.43Maker product pageshokz.com/pages/openfit2-compare-specRead 15 October 2026Compare table row Bluetooth Versions: V5.4.

5.43Maker product pageankerjapan.com/products/a3874Read 13 October 20264Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3874Manual.pdfRead 13 October 2026

Bluetooth codecs

SBC, AAC3Maker product pageshokz.com/pages/openfit2-compare-specRead 15 October 2026Compare table row Compatible Codecs: SBC, AAC.

SBC, AAC, LDAC1Maker product pageus.soundcore.com/products/a3874-aerofit-2-open-earbudsRead 13 October 2026LDAC is named on the maker page. SBC and AAC come from the Anker Japan page.3Maker product pageankerjapan.com/products/a3874Read 13 October 2026Comparison table lists SBC, AAC and LDAC.

Bluetooth profiles

A2DP, AVRCP, HFP3Maker product pageshokz.com/pages/openfit2-compare-specRead 15 October 2026Compare table row Compatible Profiles: A2DP, AVRCP, HFP.

Not available

LE Audio

Not available

Not available

Auracast

Not available

Not available

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

Yes1Maker product pageshokz.com/products/openfit2plusRead 15 October 2026Easy MultiPoint pairing to two devices at once.

Yes3Maker product pageankerjapan.com/products/a3874Read 13 October 2026

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

21Maker product pageshokz.com/products/openfit2plusRead 15 October 2026

23Maker product pageankerjapan.com/products/a3874Read 13 October 2026Connects to 2 devices at the same time.6Spec databasesoundguys.com/product/soundcore-aerofit-2Read 13 October 2026

Multipoint with LDACiMany buds turn multipoint off on LDAC

Not available

No7Reviewdigitaltrends.com/home-theater/soundcore-aerofit-2-reviewRead 13 October 2026Enabling LDAC gives up multipoint connectivity.

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

Not available

Not available

Automatic switching between own devicesiThrough the maker's account

Not available

Not available

Fast pairing

Not available

Not available

Audio sharingiShare one stream with a second pair

Not available

Not available

Wireless range (claimed)

10m3Maker product pageshokz.com/pages/openfit2-compare-specRead 15 October 2026Compare table row Wireless Range: 33 ft (10 m).

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

Yes8Reviewmezha.ua/en/reviews/oglyad-anker-soundcore-aerofit-2-301914Read 13 October 2026The app main screen offers a Gaming Mode described as a low latency mode.

Claimed latency

Not available

Not available

Lowest claimed latency

Not available

Not available

Compatibility

1 of 4 differ

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

Not available

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.

AShokz OpenFit 2+

Feature	Needs
Dolby Audio	Turned on or off with a toggle in the Shokz App while the earbuds are connected to a phone. The maker says it shortens earbud battery life by about 2 hours.
Touch control for the voice assistant	The touch area only starts the device voice assistant. It is off by default and is turned on in the Shokz App.
MultiPoint pairing	Turned on in the Shokz App after updating the app and the earbud firmware.
Wireless charging	Any Qi-certified wireless charger. No wireless charger is in the box.
Battery test	Shokz Lab at 25 +/- 2 C, SBC audio at 50 percent volume, other features at default.

Source1Maker product pageshokz.com/products/openfit2plusRead 15 October 2026FAQ for Dolby Audio, the voice assistant touch area and Qi charging. The Battery test entry is from the page footnote.

Bsoundcore AeroFit 2

Not available

Official licence

Not available

Not available

Battery and charging

8 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.

56mAh3Maker product pageshokz.com/pages/openfit2-compare-specRead 15 October 2026Compare table row Battery Capacity: earbuds 56 mAh (Min). The maker table does not say whether this is one earbud or the pair. A retailer datasheet (Bechtle, 3 Dec 2025) lists 28 mAh for each earpiece, which would total 56. 56 mAh per earbud is stored as the minimum capacity, as for the OpenFit 2.

Not available

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.

AShokz OpenFit 2+

Mode	Codec	Includes case recharges	Hours (h)
ANC off	SBC	No	11
ANC off	SBC	Yes	48
Call	Not available	No	8
Call	Not available	Yes	36

Source1Maker product pageshokz.com/products/openfit2plusRead 15 October 2026Up to 11 hours on a single charge and up to 48 hours with the charging case, from the Shokz Lab test with SBC audio at 50 percent volume at 25 +/- 2 C, other features at default. Call rows are from the German spec table. The FAQ says Dolby Audio on cuts earbud battery life by about 2 hours.4Maker product pagede.shokz.com/products/openfit2-seriesRead 15 October 2026Spec table: up to 11 hours of playback on one charge and 48 hours with the case. Up to 8 hours of talk time on one charge and 36 hours with the case. The footnote names the Shokz Laboratory test at 25 +/- 2 C, 50 percent volume, other features at default, SBC for playback.

Bsoundcore AeroFit 2

Mode	Includes case recharges	Hours (h)
ANC off	No	10
ANC off	Yes	42

Source1Maker product pageus.soundcore.com/products/a3874-aerofit-2-open-earbudsRead 13 October 2026Up to 10 hours on a single charge and up to 42 hours with the case. The UK store page states a total of 35 hours with the case.3Maker product pageankerjapan.com/products/a3874Read 13 October 202610 hours for the earbuds alone and 42 hours with the charging case.

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.

11h=CalculatedFrom Claimed battery life

10h=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.

Not available

Not available

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

11h=CalculatedFrom Claimed battery life

10h=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.

48h=CalculatedFrom Claimed battery life

42h=CalculatedFrom Claimed battery life

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

Not available

Not available

Talk time (claimed)

8h=CalculatedFrom Claimed battery life

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.

60min1Maker product pageshokz.com/products/openfit2plusRead 15 October 2026Compare table: charge the earbuds with the charging case, 60 minutes.4Maker product pagede.shokz.com/products/openfit2-seriesRead 15 October 2026Spec table row Ladezeit: charge the earbuds with the case, 60 minutes.

60min4Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3874Manual.pdfRead 13 October 2026Earbuds charge within 1 hour. Stored as 60 minutes.

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.

Wired case charging: earbuds in the case take 60 minutes and an empty case takes 100 minutes with the USB-C cable. On a Qi charger an empty case takes about 180 minutes, tested at 25 C with 2 W charging power. The case takes 5 V plus or minus 5 percent over USB-C and the guide advises against high-voltage power sources.4Maker product pagede.shokz.com/products/openfit2-seriesRead 15 October 2026Spec table: case on a wireless charger only, about 180 minutes. Footnote: tested at 25 C with 2 W charging power, three hours. Row Ladespannung: 5 V plus or minus 5 percent.

Earbuds charge within 1 hour. The case and earbuds together take about 2.2 hours by USB-C cable and about 2.6 hours on a wireless charger. Input is 5 V 1.2 A.4Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3874Manual.pdfRead 13 October 2026Case and earbuds about 2.2 hours by cable and 2.6 hours wireless in the French and Danish guides. Input 5 V 1.2 A.

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

10min1Maker product pageshokz.com/products/openfit2plusRead 15 October 2026A quick 10-minute charge delivers 2 hours of playtime.

10min3Maker product pageankerjapan.com/products/a3874Read 13 October 202610 minutes of charging gives up to 4 hours of playback.

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.

2h1Maker product pageshokz.com/products/openfit2plusRead 15 October 2026Earbud playtime after 10 minutes in the case. The German footnote says AAC audio at 50 percent volume. The case must show the green light state.4Maker product pagede.shokz.com/products/openfit2-seriesRead 15 October 2026Spec table row Schnellladefunktion: a 10-minute quick charge with the case gives 2 hours of playback. Footnote: 120 minutes of AAC audio at 50 percent volume.

4h3Maker product pageankerjapan.com/products/a3874Read 13 October 2026

Charging case

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

600mAh3Maker product pageshokz.com/pages/openfit2-compare-specRead 15 October 2026Compare table row Battery Capacity: charging case 600 mAh (Min).

750mAh4Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3874Manual.pdfRead 13 October 2026Specifications page lists battery capacity 750 mAh. This is the charging case battery.

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 pageshokz.com/products/openfit2plusRead 15 October 2026The package holds a Type-C charging cable. The compare table lists the charging case with USB-C and Qi wireless charging.

USB-C4Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3874Manual.pdfRead 13 October 2026USB-C charging port on the 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.

100min1Maker product pageshokz.com/products/openfit2plusRead 15 October 2026Compare table: empty case with charging cable, 100 minutes.4Maker product pagede.shokz.com/products/openfit2-seriesRead 15 October 2026Spec table row Ladezeit: empty case with charging cable, 100 minutes.

102min4Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3874Manual.pdfRead 13 October 2026Case charge time about 1.7 hours by USB-C cable. Stored as 102 minutes.

Wireless charging

Yes1Maker product pageshokz.com/products/openfit2plusRead 15 October 2026With Qi wireless charging you just place it down and power up. The package has no wireless charger.

Yes1Maker product pageus.soundcore.com/products/a3874-aerofit-2-open-earbudsRead 13 October 2026Place the case on a wireless charger to recharge.

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

Qi1Maker product pageshokz.com/products/openfit2plusRead 15 October 2026FAQ: any wireless charger that supports the Qi standard is compatible.7Owner's manualcdn.shopify.com/s/files/1/0620/0642/7873/files/OPENFIT_2_User_Guide.pdfRead 15 October 2026Wireless Charging page: the charging case supports Qi-certified wireless charging.

Not available

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.

Not available

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.

Not available

Not available

Controls

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

Button, Touch1Maker product pageshokz.com/products/openfit2plusRead 15 October 2026Physical multifunction buttons plus touch controls. Maker FAQ: physical buttons and touch controls. The touch area for the voice assistant is off by default.

Touch3Maker product pageankerjapan.com/products/a3874Read 13 October 2026

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

Buttons7Owner's manualcdn.shopify.com/s/files/1/0620/0642/7873/files/OPENFIT_2_User_Guide.pdfRead 15 October 2026Volume control page: press and hold the left button for volume down and the right button for volume up.

Touch7Reviewdigitaltrends.com/home-theater/soundcore-aerofit-2-reviewRead 13 October 2026Volume gestures can be assigned in the app. They are not set by default.

Gestures

Click either button: play or pause, answer a call, end a call, Double-click either button: next track, reject a call, Triple-click either button: previous track, Press and hold left button: volume down one level, Press and hold right button: volume up one level7Owner's manualcdn.shopify.com/s/files/1/0620/0642/7873/files/OPENFIT_2_User_Guide.pdfRead 15 October 2026Music, call and volume control pages: click, double-click and triple-click either physical button. Press and hold the left or right button for volume. Press and hold an earbud to change volume continuously.

Right double tap: play or pause, Left double tap: next track, Double tap during a call: answer, Hold for 2 seconds during a call: reject or end4Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3874Manual.pdfRead 13 October 2026Default touch controls in the guide. Other actions are set in the soundcore app.

Remappable controls

Yes1Maker product pageshokz.com/products/openfit2plusRead 15 October 2026FAQ: users can customize button functions in the Shokz App.

Yes4Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3874Manual.pdfRead 13 October 20267Reviewdigitaltrends.com/home-theater/soundcore-aerofit-2-reviewRead 13 October 2026

Voice assistant

Not available

Not available

Sensors and health

1 of 9 differ

In-ear detection

Not available

No6Spec databasesoundguys.com/product/soundcore-aerofit-2Read 13 October 2026Auto pause is listed as No.

Sensors

Not available

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

Not available

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

Not available

Hearing protectioniLimits sudden loud sounds

Not available

Not available

Health features

Not available

Not available

Fit and durability

0 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

Not available

Ear tip materials

Not available

Not available

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

Ear hook2Maker product pageshokz.com/pages/openfit2plusRead 15 October 2026Flexible ear hook with an integrated nickel-titanium alloy.

Ear hook1Maker product pageus.soundcore.com/products/a3874-aerofit-2-open-earbudsRead 13 October 20263Maker product pageankerjapan.com/products/a3874Read 13 October 2026Ear hook angle adjustable in 4 steps.

Ear tip fit test

Not available

Not available

Dust and water rating, buds

IP551Maker product pageshokz.com/products/openfit2plusRead 15 October 2026IP55 for the earbuds. The charging case is not rated waterproof.

IP553Maker product pageankerjapan.com/products/a3874Read 13 October 20264Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3874Manual.pdfRead 13 October 2026

Dust and water rating, case

Not available

Not available

Water resistance depth

Not available

Not available

Software

2 of 6 differ

Companion app

Shokz App1Maker product pageshokz.com/products/openfit2plusRead 15 October 2026Shokz App for EQ, MultiPoint, Dolby Audio, button settings, Find My Earbuds and firmware updates.

soundcore4Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3874Manual.pdfRead 13 October 2026

App platforms

Android, iOS7Owner's manualcdn.shopify.com/s/files/1/0620/0642/7873/files/OPENFIT_2_User_Guide.pdfRead 15 October 2026The guide shows the App Store and Google Play download for the Shokz App.

Android, iOS4Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3874Manual.pdfRead 13 October 20266Spec databasesoundguys.com/product/soundcore-aerofit-2Read 13 October 2026

User firmware updates

Yes1Maker product pageshokz.com/products/openfit2plusRead 15 October 2026FAQ: the Shokz App keeps track of firmware updates.7Owner's manualcdn.shopify.com/s/files/1/0620/0642/7873/files/OPENFIT_2_User_Guide.pdfRead 15 October 2026MultiPoint page: update the earbud firmware in the Shokz App.

Yes4Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3874Manual.pdfRead 13 October 2026

Finding network

Not available

Not available

Precision findingiUWB in the case

Not available

Not available

Live translation

Not available

Yes1Maker product pageus.soundcore.com/products/a3874-aerofit-2-open-earbudsRead 13 October 2026AI translation for 100 languages in the soundcore app, with the app and firmware updated.

Dimensions and weight

2 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.

9.4g(0.3 oz)1Maker product pageshokz.com/products/openfit2plusRead 15 October 2026Compare table: earbuds 9.4 g plus or minus 0.2 g.

Not available

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

Not available

Not available

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

56g(2 oz)1Maker product pageshokz.com/products/openfit2plusRead 15 October 2026Compare table: charging case 56 g plus or minus 2.0 g.

65g(2.3 oz)5Measurementsoundguys.com/anker-soundcore-aerofit-2-review-126119Read 13 October 2026Spec table lists case weight 65 g. Digital Trends also lists 65 g for the charging case.7Reviewdigitaltrends.com/home-theater/soundcore-aerofit-2-reviewRead 13 October 2026Weight listed as 65 g for the charging case.

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

Not available

Not available

Certifications

None of 3 known

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

Not available

Not available

Other certifications

Not available

Not available

In the box

2 of 2 differ

In the box

OpenFit 2+ earbuds, Charging case, USB-C to USB-C charging cable, User guide, Legal statement, Warranty card1Maker product pageshokz.com/products/openfit2plusRead 15 October 2026What is in the box: earbuds, type C charging cable, charging case, user guide, legal statement, warranty card.

Earbuds, Charging case, USB-C charging cable, Quick guide with a QR code for the app8Reviewmezha.ua/en/reviews/oglyad-anker-soundcore-aerofit-2-301914Read 13 October 2026The package has a charging case with the earbuds, a USB Type-C charging cable and a short instruction sheet with a QR code for the app.

Cables included

AShokz OpenFit 2+

Type	Count
USB-C to USB-C charging cable	1

Source1Maker product pageshokz.com/products/openfit2plusRead 15 October 2026Type C charging cable x1. The guide names it a USB-C to USB-C cable. No length is published.

Bsoundcore AeroFit 2

Type	Count
USB-C charging cable	1

Source8Reviewmezha.ua/en/reviews/oglyad-anker-soundcore-aerofit-2-301914Read 13 October 2026USB Type-C charging cable. The length is not stated.

Links

Not compared

Product page

shokz.com/products/openfit2plus1Maker product pageshokz.com/products/openfit2plusRead 15 October 2026

us.soundcore.com/products/a3874-aerofit-2-open-earbuds1Maker product pageus.soundcore.com/products/a3874-aerofit-2-open-earbudsRead 13 October 2026

Spec sheet

de.shokz.com/products/openfit2-series4Maker product pagede.shokz.com/products/openfit2-seriesRead 15 October 2026The German OpenFit 2 Series page holds the full spec table for the OpenFit 2+.

Not available

Manual

cdn.shopify.com/s/files/1/0620/0642/7873/files/OPENFIT_2_User_Guide.pdf7Owner's manualcdn.shopify.com/s/files/1/0620/0642/7873/files/OPENFIT_2_User_Guide.pdfRead 15 October 2026The PDF is titled OPENFIT 2+ User Guide and names SHOKZ T921. Some digits do not extract from the PDF text.

lp.ankerjapan.com/hubfs/aoos/manual/A3874Manual.pdf4Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3874Manual.pdfRead 13 October 2026

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

1 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.

2years1Maker product pageshokz.com/products/openfit2plusRead 15 October 2026US store: every purchase from Shokz.com comes with a 2-year warranty.4Maker product pagede.shokz.com/products/openfit2-seriesRead 15 October 2026Spec table row Garantie: 2 Jahre.

Not available

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