Earbuds / Compare

soundcore P40i vs soundcore Sport X20

A

Product A: soundcore

P40i

84 of 166 known

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B

Product B: soundcore

Sport X20

67 of 166 known

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All 166 fields

Every value links to where we found it.

Only differences

Asoundcore P40i

Bsoundcore Sport X20

General

4 of 8 differ

Series

Not available

Not available

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

A3955, A3955Z11, A3955Z21, A3955Z31, A3955ZQ1, A3955N11, A3955N21, A3955N31, A3955NQ11Maker product pageus.soundcore.com/products/p40i-a3955011Read 30 September 2026US SKUs A3955Z11, A3955Z21, A3955Z31, A3955ZQ1 from the store's product data (products/p40i-a3955011.js)2Maker product pageankerjapan.com/products/a3955Read 30 September 2026Japan model list: N21 Off White, N11 Black, N31 Navy, NQ1 Purple.

A3968, A3968Z11, A3968Z21, A3968Z61, A3968G11, A3968G21, A3968G616Maker product pageus.soundcore.com/products/a3968-sport-x20-earbuds.jsRead 20 October 20267Maker product pageuk.soundcore.com/products/a3968-sport-x20-earbuds.jsRead 20 October 2026UK store SKUs A3968G11 Black, A3968G21 White and A3968G61 Green. The German store lists the same SKUs.8Maker product pagede.soundcore.com/products/a3968-sport-x20-earbuds.jsRead 20 October 2026German store lists A3968G11 Schwarz, A3968G21 Weiss and A3968G61 Gruen.

GTIN / EAN

194644186340, 194644190989, 194644190965, 1946441909581Maker product pageus.soundcore.com/products/p40i-a3955011Read 30 September 2026Variant barcodes in the store's product data: Black 194644186340, Oat White 194644190989, Navy Blue 194644190965, Purple 1946441909585Maker product pageankernordics.com/products/p40i-a3955011Read 30 September 2026

194644186357, 194644193614, 1946441935846Maker product pageus.soundcore.com/products/a3968-sport-x20-earbuds.jsRead 20 October 2026US store barcodes per colour. Anker Japan uses different barcodes for the same SKU names.

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

Not available

Not available

Status

Available5Maker product pageankernordics.com/products/p40i-a3955011Read 30 September 2026Anker Nordics store (Anker Innovations) lists all four colours as available for sale

Available6Maker product pageus.soundcore.com/products/a3968-sport-x20-earbuds.jsRead 20 October 2026Black, White and Green variants are listed as available on the access date. The Anker Japan, UK and European retailer pages also list it.

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.

soundcore P42i23Press releaseprtimes.jp/main/html/rd/p/000000662.000016775.htmlRead 23 October 2026Anker Japan's press release calls the Soundcore P42i the next-generation model of the Soundcore P40i.24Press articleav.watch.impress.co.jp/docs/news/2121578.htmlRead 23 October 2026AV Watch calls the Soundcore P42i the next-generation model of the Soundcore P40i.

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.

Not available

$79.999Press articletechradar.com/audio/earbuds-airpods/soundcores-new-sports-earbuds-offer-a-powerbeats-pro-style-customizable-secure-fit-for-a-fraction-of-the-priceRead 20 October 2026TechRadar reports $79.99 on Amazon at launch. The soundcore US store lists $79.99 now.

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.

Not available

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, JP1Maker product pageus.soundcore.com/products/p40i-a3955011Read 30 September 2026Exact-model US and Japanese maker store pages. Regional color/SKU rows verified separately.2Maker product pageankerjapan.com/products/a3955Read 30 September 2026Anker Japan exact A3955/P40i product available in Japanese official store. Regional SKUs documented separately.

US, GB, JP, EU6Maker product pageus.soundcore.com/products/a3968-sport-x20-earbuds.jsRead 20 October 20267Maker product pageuk.soundcore.com/products/a3968-sport-x20-earbuds.jsRead 20 October 2026UK store lists the three colours.8Maker product pagede.soundcore.com/products/a3968-sport-x20-earbuds.jsRead 20 October 2026German store lists the three colours.

ColoursiThe maker's own colour names

Black, Oat White, Navy Blue, Purple, Off White, Navy1Maker product pageus.soundcore.com/products/p40i-a3955011Read 30 September 20262Maker product pageankerjapan.com/products/a3955Read 30 September 2026Japanese product model list: Off White, Black, Navy and Purple. US labels Oat White and Navy Blue retained separately.

Black, White, Green6Maker product pageus.soundcore.com/products/a3968-sport-x20-earbuds.jsRead 20 October 2026

Segment

Not available

Sport6Maker product pageus.soundcore.com/products/a3968-sport-x20-earbuds.jsRead 20 October 2026The US store tags it Sport Series and Sports & Exercise.

Design

1 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.

In-ear7Reviewrtings.com/headphones/reviews/anker/soundcore-p40i-true-wirelessRead 30 September 2026Type: In-ear

In-ear5Maker product pageus.soundcore.com/products/a3968-sport-x20-earbudsRead 20 October 2026

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

Stem1Maker product pageus.soundcore.com/products/p40i-a3955011Read 30 September 2026Product photos show stem buds

Ear hook5Maker product pageus.soundcore.com/products/a3968-sport-x20-earbudsRead 20 October 2026Adjustable ear hooks that extend 4 mm and rotate 30 degrees.

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

Either bud5Maker product pageankernordics.com/products/p40i-a3955011Read 30 September 2026FAQ: either earbud can be used on its own

Either bud2Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017113/en_US/000017113.pdfRead 20 October 2026FAQ says one earbud in the closed case lets the other be used alone.

RGB lighting

Not available

Not available

Drivers and sound

2 of 17 differ

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

Asoundcore P40i

Type	Diameter (mm)	Count per earbud
Dynamic	11	1

Source1Maker product pageus.soundcore.com/products/p40i-a3955011Read 30 September 2026Published as 11 mm composite drivers with BassUp2Maker product pageankerjapan.com/products/a3955Read 30 September 2026Specifications: 11 mm dynamic driver.3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026

Bsoundcore Sport X20

Type	Diameter (mm)	Count per earbud
Dynamic	11	1

Source1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdfRead 20 October 2026

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

Dynamic3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Specifications table (PDF page 7): 11 mm dynamic driver.

Dynamic1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdfRead 20 October 2026

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

11mm=CalculatedFrom Drivers per bud

11mm=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.

Min20 HzMax20 kHz3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Specifications table (PDF page 7): 20 Hz to 20 kHz.

Min20 HzMax20 kHz1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdfRead 20 October 2026SPECS table prints 20-20KHz. No codec or conditions given.

Impedance

14Ω3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Specifications page 10: impedance 14 ohms.

16Ω1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdfRead 20 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

Yes4Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Guide.pdfRead 30 September 2026App guide page 5: HearID Sound builds a hearing-sensitivity profile using a tone test.

Yes2Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017113/en_US/000017113.pdfRead 20 October 2026HearID Sound results are saved and applied.

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.

Not available

Not available

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

Default, Acoustic, Bass Booster, Bass Reducer, Classical4Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Guide.pdfRead 30 September 2026App settings guide page 5 screenshot: five named preset buttons shown, translated from Japanese. The maker says 22 presets exist, but remaining names were not established.

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.

Movie mode4Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Guide.pdfRead 30 September 2026App settings guide pp 3/6: Movie mode gives a 3 D sound effect.

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.

Not available

Not available

Noise cancelling

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Active noise cancelling

Yes3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Modes (PDF page 5): noise cancellation with automatic strength depending on ambient noise, plus manual and scene modes.

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdfRead 20 October 2026

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.

Yes3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Modes (PDF page 5): noise cancellation with automatic strength depending on ambient noise.

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdfRead 20 October 2026Ambient sound section lists Adaptive ANC, which adapts noise cancellation to the surroundings.

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

510Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Guide.pdfRead 7 October 2026Maker exact P40i app guide page 4 manually selectable ANC strength boxes explicitly numbered 1, 2, 3, 4, 5. Automatic adaptation and three scene choices are different controls. Off and transparency not counted. Guide UI firmware example 01.58 appears on page 8, without an asserted current firmware maximum.

310Reviewgigazine.net/gsc_news/en/20240728-anker-soundcore-sport-x20Read 20 October 2026In the soundcore app, manual mode sets noise cancelling to Strong, Medium or Weak. Automatic mode is separate.

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

45dB11Press articlefashaoyou.net/archives/35647Read 7 October 2026Original February 28, 2024 MWC report on exact P40i expressly says adaptive ANC, up to 45 dB maximum noise reduction. Manufacturer claim reported by press, not reviewer measured average. Frequency and laboratory method are unpublished. Inaccessible retailer artwork and its unverifiable comparative footnote are not used.

Not available

Transparency mode

Yes3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Modes (PDF page 5): external-sound transparency.

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdfRead 20 October 2026

Adjustable transparency

Yes4Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Guide.pdfRead 30 September 2026Mode settings p 4: transparency offers All Ambient and Voice Focus modes.

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.

Yes5Maker product pageankernordics.com/products/p40i-a3955011Read 30 September 2026Maker P40i FAQ explicitly gives the Wind Noise Reduction app setting.

Yes2Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017113/en_US/000017113.pdfRead 20 October 2026The Wind Noise Cancellation setting in the app lowers the feedforward microphone gain when wind is detected.

Measured

7 of 23 differ

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

Boosted bass sound signature. The response stays close to its bass-heavy tuning, with treble variations that can veil detail or brighten sibilants. SoundGuys tested a purchased A3955 on firmware 1.67. With its Default profile, its B&K 5128 measurement shows a bass peak roughly 12 dB above the SoundGuys preference target around 60 Hz and a broad treble peak about 5 dB above target around 3-5 kHz. These are local peaks, not regional bass/treble averages. The two labs use different targets.7Reviewrtings.com/headphones/reviews/anker/soundcore-p40i-true-wirelessRead 30 September 2026Our Verdict: Audio Reproduction Accuracy21Reviewsoundguys.com/anker-soundcore-p40i-review-143328Read 7 October 2026Added SoundGuys paragraph only. Actual lab FR against its stated preference curve, Default profile, purchased exact A3955, firmware 1.67. General documented rig B&K 5128, B&K 1704C-102 and SoundCheck. Exact host/codec/test level unstated. Bass 12 dB is a local peak, not the existing RTINGS regional amount 9 dB. Existing RTINGS text/figures retained.22Reviewsoundguys.com/how-we-testRead 7 October 2026Reviewer official method: B&K 5128 fixture, powered by B&K 1704C-102, SoundCheck-controlled measurement. Target is SoundGuys preference curve.

Not available

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.

9dB7Reviewrtings.com/headphones/reviews/anker/soundcore-p40i-true-wirelessRead 30 September 2026Public summary: Very Emphasized (9 dB). Test bench 2.3, Black unit. Full results are behind a paywall and were not read

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.

5dB7Reviewrtings.com/headphones/reviews/anker/soundcore-p40i-true-wirelessRead 30 September 2026Public summary: Very Emphasized (5 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

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

Voice sounds distorted and thin on calls. In loud conditions the mics separate noise decently but can cut out parts of speech. SoundGuys standardized artificial-mouth recordings cover ideal, office, street, wind and reverberant conditions on firmware 1.67. Its original review reports overly aggressive suppression can cut small speech segments. Host/codec are unstated. No numeric rejection value inferred from listener votes.7Reviewrtings.com/headphones/reviews/anker/soundcore-p40i-true-wirelessRead 30 September 2026Our Verdict: Microphone21Reviewsoundguys.com/anker-soundcore-p40i-review-143328Read 7 October 2026Added SoundGuys controlled-recording paragraph only. Its general method uses prerecorded speech from calibrated artificial mouth, with/without simulated noise and reverberation. Product review publishes those samples and describes suppression dropouts. Firmware 1.67. Host/codec unstated. Existing RTINGS description retained.22Reviewsoundguys.com/how-we-testRead 7 October 2026Reviewer official method: calibrated artificial mouth plays prerecorded phrases in chamber, optionally with simulated background/reverberation. Conditions are measurement procedures, not a subjective untested listening note.

Not available

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.

Asoundcore P40i

Hours (h)
9.3

Source7Reviewrtings.com/headphones/reviews/anker/soundcore-p40i-true-wirelessRead 30 September 2026Public P41i comparison explicitly states P40i 9.3-hour continuous battery life. Travel verdict rounds it to nine hours. Test bench 2.3, ANC and codec settings not publicly stated.

Bsoundcore Sport X20

Not available

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

9.3h=CalculatedFrom Battery life (measured)

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

6g(0.2 oz)10Reviewgigazine.net/gsc_news/en/20240728-anker-soundcore-sport-x20Read 20 October 2026Reviewer weighed one earbud at 6 g and the earbuds with case at 55 g. Basic Tutorials lists 7 g per earbud and 41 g for the case, so the per-earbud weight is stored as measured only.

Microphones and calls

0 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.

61Maker product pageus.soundcore.com/products/p40i-a3955011Read 30 September 20262Maker product pageankerjapan.com/products/a3955Read 30 September 2026Call feature: six beamforming microphones across the pair.

64Maker product pageankerjapan.com/products/a3968Read 20 October 2026Six microphones are used for AI noise reduction on calls.

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.

611Press articlefashaoyou.net/archives/35647Read 7 October 2026Original February 28 MWC launch report explicitly says six physical microphones, three in each earbud. IT Home separately says each bud internally contains three. Maker six beamforming call-mic claim corroborates six, but no ANC role count inferred. This field counts all physical mics across the pair, excluding case.

611Reviewbasic-tutorials.com/reviews/gadget-reviews/soundcore-sport-x20Read 20 October 2026Technical data table lists three microphones per earbud, so six across the pair. The call microphones and the ANC microphones are not split out.

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 pageus.soundcore.com/products/p40i-a3955011Read 30 September 2026Published as 6 mics and an AI algorithm

AI4Maker product pageankerjapan.com/products/a3968Read 20 October 2026Anker Japan names AI noise reduction for calls.

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

Bluetooth2Maker product pageankerjapan.com/products/a3955Read 30 September 2026Communication specifications: Bluetooth 5.3. No wired or dongle audio connection listed.

Bluetooth1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdfRead 20 October 2026

Bluetooth

5.33Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Specifications table (PDF page 7): Bluetooth 5.3.

5.31Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdfRead 20 October 2026SPECS table says Bluetooth 5.3, as does the Anker Japan page. TechRadar and the SoundGuys spec page say 5.4. The maker's manual is kept.

Bluetooth codecs

SBC, AAC2Maker product pageankerjapan.com/products/a3955Read 30 September 2026Maker comparison table: P40i column lists SBC and AAC. LDAC belongs to other products.

SBC, AAC2Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017113/en_US/000017113.pdfRead 20 October 2026FAQ answer to which audio codecs the Sport X20 supports: SBC and AAC.

Bluetooth profiles

Not available

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.

Yes3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Multipoint instructions connect two devices simultaneously. (PDF page 4)

Yes2Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017113/en_US/000017113.pdfRead 20 October 2026FAQ explains how to enable multipoint through Dual Connections in the soundcore app.

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

23Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Multipoint chapter: connects to two devices simultaneously.

24Maker product pageankerjapan.com/products/a3968Read 20 October 2026Multipoint connects to two devices at the same time.

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

Not available

Automatic switching between own devicesiThrough the maker's account

Not available

Not available

Fast pairing

Google Fast Pair2Maker product pageankerjapan.com/products/a3955Read 30 September 2026Exact P40i feature paragraph explicitly supports Google Fast Pair for Android.

Not available

Audio sharingiShare one stream with a second pair

Not available

Not available

Wireless range (claimed)

10m3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Specifications page 10: Bluetooth operating range 10 m.

10m1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdfRead 20 October 2026

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

Yes2Maker product pageankerjapan.com/products/a3955Read 30 September 2026Product feature: Game mode.4Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Guide.pdfRead 30 September 2026

Not available

Claimed latency

Not available

Not available

Lowest claimed latency

Not available

Not available

Compatibility

3 of 4 differ

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

Windows, macOS, Android, iOS12Maker product pageankernordics.com/products/p40i-a3955011Read 7 October 2026Exact P40i maker FAQ specifically covers Windows input/output, Mac Bluetooth audio, Android-phone Bluetooth volume and iPhone audio. Documented playback paths, not generic inference from Bluetooth version. No console/Linux platforms added.

Android, iOS, Windows, macOS2Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017113/en_US/000017113.pdfRead 20 October 2026FAQ has setup and volume steps for Windows, macOS, Android and iPhone. The soundcore app does not support computers.

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.

Asoundcore P40i

Platform	Connection	Microphone works
Windows	Bluetooth	Yes
macOS	Bluetooth	Not available
Android	Bluetooth	Not available
iOS	Bluetooth	Not available

Source12Maker product pageankernordics.com/products/p40i-a3955011Read 7 October 2026Exact FAQ documents Bluetooth pairing/playback on Windows, Mac, Android and iPhone. Windows microphone explicitly assigned soundcore P40i Hands-Free in conferencing software and system input, so microphone_works true only for that proved row. Unknown per-platform mic flags omitted.

Bsoundcore Sport X20

Not available

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

Asoundcore P40i

Feature	Needs
Google Fast Pair	Compatible Android device.
HearID Sound and custom sound settings	soundcore app on iOS or Android. Firmware must be updated as instructed by the maker.
Game mode and Movie mode	soundcore app.
Custom touch controls	soundcore app. Single tap cannot be assigned Voice Assistant.
Find Earbuds audible locator	Earbuds within the Bluetooth connection range. This is a local sound locator, not a tracking network.
Microphone in Windows conferencing apps	Select soundcore P40i Hands-Free as the app microphone and speaker.

Source13Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Guide.pdfRead 7 October 2026Exact maker app guide pages 2, 5, 6, 7, 8 establishes iOS/Android app, HearID, immersive modes, custom controls and audible finder within Bluetooth range. Exact Japan maker page binds Fast Pair to Android. Nordic FAQ supplies Windows Hands-Free and assistant assignment restriction. No unstated minimum OS/version/codec inferred.14Maker product pageankernordics.com/products/p40i-a3955011Read 7 October 2026Exact Windows FAQ explicitly assigns Hands-Free for conferencing input/output. Exact assistant FAQ says single tap cannot invoke assistant. These are requirements, not Microsoft Teams certification.15Maker product pageankerjapan.com/pages/soundcore-p40iRead 7 October 2026Exact Google Fast Pair paragraph specifically identifies Android devices. Page footnote tells users to ensure firmware is updated when using the soundcore app, while basic earbuds playback also works without the app. No unstated platform minimum or firmware version is inferred.

Bsoundcore Sport X20

Not available

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.

60mAh3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Specifications table (PDF page 7): 60 mAh x 2 earbuds.

60mAh13Retailer pageharveynorman.co.nz/headphones-and-speakers/headphones/soundcore-sport-x20-adaptive-noise-cancelling-true-wireless-in-ear-headphones-black.htmlRead 20 October 2026Retailer spec table lists 60 mAh lithium polymer per earbud. The maker publishes no earbud capacity and does not say typical or rated. The same table lists 10 ohm impedance and shorter charge times than the manual, so only the capacity is taken.

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.

Asoundcore P40i

Mode	Includes case recharges	Hours (h)
ANC off	No	12
ANC off	Yes	60
ANC on	No	10
ANC on	Yes	50
Transparency	No	10
Transparency	Yes	50
Call	No	7

Source3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Specifications p 10: 12/60 h ANC off, 10/50 h ANC on, earbuds-only versus case-inclusive. Transparency 10/50 h and call 7 h from Nordic English FAQ.5Maker product pageankernordics.com/products/p40i-a3955011Read 30 September 2026FAQ: Transparency 10 h buds and 50 h with the case. Calls 7 h with ANC off and 6.5 h with ANC on

Bsoundcore Sport X20

Mode	Includes case recharges	Hours (h)
ANC off	No	12
ANC off	Yes	48
ANC on	No	7
ANC on	Yes	28
Transparency	No	7
Call	No	6

Source1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdfRead 20 October 2026SPECS table: ANC off 12 h earbuds and 48 h with case, ANC on 7 h and 28 h. The FAQ adds transparency 7 h and calls 6 h. The Quick Start Guide prints up to 36 h with ANC on and up to 48 h with ANC off, which disagrees with the manual, the FAQ and Anker Japan. The manual figures are kept.2Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017113/en_US/000017113.pdfRead 20 October 2026FAQ: normal 12 h earbuds and 48 h case, ANC 7 h and 28 h, transparency 7 h, calls 6 h. Maker lab test at default settings, normal mode and 50 percent volume. A second FAQ entry says about 7 h with ANC and 11.5 h in normal mode, which differs from 12 h.

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.

12h=CalculatedFrom Claimed battery life

12h=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.

10h=CalculatedFrom Claimed battery life

7h=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.

12h=CalculatedFrom Claimed battery life

12h=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.

60h=CalculatedFrom Claimed battery life

48h=CalculatedFrom Claimed battery life

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

50h=CalculatedFrom Claimed battery life

28h=CalculatedFrom Claimed battery life

Talk time (claimed)

7h=CalculatedFrom Claimed battery life

6h=CalculatedFrom Claimed battery life

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.

60min3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Specifications page 10: up to one hour for earbuds. Nordic FAQ says around 50 minutes, manual preferred.5Maker product pageankernordics.com/products/p40i-a3955011Read 30 September 2026FAQ says around 50 mins, lab data at 25 +/- 3 degrees C

90min1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdfRead 20 October 2026SPECS table says full charging time for earbuds 1.5 hours. The FAQ says about 40 minutes at 25 degrees C. The manual is kept.

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

The manual lists a full charge of 1.5 hours for the earbuds and 3 hours for the charging case. The FAQ gives about 40 minutes for the earbuds at 25 degrees C as lab data, and about 3 hours for the case on a wall charger. Case input is 5 V 0.45 A. Dry the earbuds and the USB-C port before charging.1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdfRead 20 October 20262Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017113/en_US/000017113.pdfRead 20 October 2026FAQ says about 40 minutes for the earbuds at 25 degrees C plus or minus 3 degrees C as lab data and about 3 hours for the case on a wall charger.

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

10min3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Manual page 3 charging diagram: 10-minute charge for 5 hours of playback. ANC state unspecified.

5min1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdfRead 20 October 2026Charging diagram prints 5 mins = 2 hrs. Anker Japan says about 2 hours of music after 5 minutes. ANC, volume and codec are not stated.

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.

5h3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Manual page 3 charging diagram: 10-minute charge for 5 hours of playback. ANC state unspecified.

2h1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdfRead 20 October 2026Earbuds-only playback after 5 minutes of charging in the case. ANC, volume and codec are not stated.

Charging case

3 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.

800mAh3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Specifications table (PDF page 7): 800 mAh case.

580mAh1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdfRead 20 October 2026SPECS table lists Battery capacity 580 mAh / 2.158 Wh with the charging case input and output. Amazon's listing calls it the carrying case battery capacity. No per-earbud capacity is published.14Retailer pageamazon.com/dp/B0CRT6HQ82Read 20 October 2026Amazon US detail table lists carrying case battery capacity 580 mAh.

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-C3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Manual page 1 overview: USB-C charging port.

USB-C1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdfRead 20 October 2026

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.

180min3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Specifications page 10: up to three hours for case by cable.5Maker product pageankernordics.com/products/p40i-a3955011Read 30 September 2026FAQ: around 3 hours via a wall charger, 4 hours via a wireless charger

180min1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdfRead 20 October 2026SPECS table says full charging time for the charging case 3 hours.

Wireless charging

Yes2Maker product pageankerjapan.com/products/a3955Read 30 September 20265Maker product pageankernordics.com/products/p40i-a3955011Read 30 September 20266Owner's manualcdn.shopify.com/s/files/1/0519/2355/0368/files/51005004317_V2_soundcore_Headphone_A3955_EU_Offline_QSG_Safety_90x90mm_20240117.pdfRead 30 September 2026Lists a WPT operating frequency of 110 KHz-205 KHz

Not available

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

Qi16Reviewsoundguys.com/anker-soundcore-p40i-review-143328Read 7 October 2026Approved original A3955 reviewer explicitly says case supports Qi wireless charging. Maker manual specifies placing case in charger centre and safety document WPT band. This is compatible Qi, not an invented WPC certificate/ID, Qi2 or MagSafe support.

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

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.

Touch3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Manual page 1 overview: touch control area.

Button1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdfRead 20 October 2026

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

Touch5Maker product pageankernordics.com/products/p40i-a3955011Read 30 September 2026FAQ: volume on the buds is set up in the app under Controls, Customize Volume Adjustment

Not available

Gestures

Single tap, Double tap, Press and hold for 2 seconds3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Controls table: x 1 tap, x 2 double tap, 2 second press and hold

Press once on either earbud: play or pause, or answer a call, Press twice on the right earbud: next track, Press twice on the left earbud: previous track, Press and hold either earbud for 2 seconds: switch between ANC and transparency, or hang up or reject a call1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdfRead 20 October 2026Controls table for TWS mode. In mono mode a single press plays or pauses and a long press skips to the next track. Controls can also be customised in the app.

Remappable controls

Yes3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Controls instructions expressly customisable via Soundcore app. (PDF page 4)

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdfRead 20 October 2026

Voice assistant

Siri12Maker product pageankernordics.com/products/p40i-a3955011Read 7 October 2026Exact FAQ instructs remapping touch action to phone Voice Assistant and separately troubleshoots Siri volume. Siri is directly named. Generic Android assistant support does not identify Google Assistant/Gemini, so no brand guessed. Single tap cannot activate assistant.

Phone voice assistant2Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017113/en_US/000017113.pdfRead 20 October 2026The button can be set to the phone's voice assistant in the app Controls. The FAQ names no assistant. A single press cannot be assigned to it.

Sensors and health

1 of 9 differ

In-ear detection

Not available

Not available

Sensors

Touch sensors17Maker product pageankerjapan.com/pages/soundcore-p40iRead 7 October 2026Exact maker paragraph explicitly names touch sensors and a raised dot placed on them for intuitive operation. Sensor technology is not called capacitive/optical because not stated. This does not establish wearing detection, motion or health sensors.

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.

Yes4Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Guide.pdfRead 30 September 2026Sound Effects p 5: HearID hearing test plays several frequency tones to create a hearing-sensitivity profile. Consumer personalization, not a clinical test.

Yes2Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017113/en_US/000017113.pdfRead 20 October 2026HearID Sound in the app is a hearing-based sound profile test. It is consumer sound personalization, not a medical test.

Hearing protectioniLimits sudden loud sounds

Not available

Not available

Health features

Not available

Not available

Fit and durability

2 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.

XS, S, M, L, XL3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Manual page 2 fit diagram: XS, S, M, L and XL tips.

XS, S, M, L, XL1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdfRead 20 October 2026

Ear tip materials

Silicone16Reviewsoundguys.com/anker-soundcore-p40i-review-143328Read 7 October 2026Original P40i review explicitly names five pairs of silicone tips with integrated grilles. No foam or hybrid tips imported from optional aftermarket accessories.

Silicone12Spec databasesoundguys.com/product/anker-soundcore-sport-x20Read 20 October 2026SoundGuys spec page lists silicone ear tips. The page has no review or test results.

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

None7Reviewrtings.com/headphones/reviews/anker/soundcore-p40i-true-wirelessRead 30 September 2026They lack wings or stabilizers

Ear hook5Maker product pageus.soundcore.com/products/a3968-sport-x20-earbudsRead 20 October 2026The adjustable ear hook is the only stabilizer. No wings or fins.

Ear tip fit test

Yes4Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Guide.pdfRead 30 September 2026App guide page 3: earbud fit test.

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdfRead 20 October 2026Wearing section tells the user to take a fit test in the soundcore app.

Dust and water rating, buds

IPX52Maker product pageankerjapan.com/products/a3955Read 30 September 2026IPX5, buds only5Maker product pageankernordics.com/products/p40i-a3955011Read 30 September 2026

IP681Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdfRead 20 October 2026SPECS table lists the IP68 waterproof rating for the earbuds only. Anker Japan says the charging case is not rated.

Dust and water rating, case

Not available

Not available

Water resistance depth

Not available

Not available

Software

1 of 6 differ

Companion app

soundcore4Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Guide.pdfRead 30 September 2026Soundcore app, from the App Store or Google Play

soundcore1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdfRead 20 October 2026

App platforms

iOS, Android4Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Guide.pdfRead 30 September 2026App installation expressly App Store iOS or Google Play Android. (PDF page 2)

Android, iOS1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdfRead 20 October 2026

User firmware updates

Yes3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Firmware update user instructions app Settings/download. (PDF page 6)

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdfRead 20 October 2026

Finding network

Not available

Not available

Precision findingiUWB in the case

Not available

Not available

Live translation

Not available

Not available

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.

5g(0.2 oz)2Maker product pageankerjapan.com/products/a3955Read 30 September 2026Product specifications: approximately 5 g per earbud. 58 g with case includes earbuds and is not case-only.

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.

Not available

Not available

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

Width65Height29Depth61mm(2.6 × 1.1 × 2.4 in)10Reviewgigazine.net/gsc_news/en/20240728-anker-soundcore-sport-x20Read 20 October 2026Gigazine gives 6.5 cm diameter, 6.1 cm depth and 2.9 cm thickness. Basic Tutorials labels it 61 x 65 x 29 mm as L x W x H. Anker Japan prints 65 x 61 x 29 mm without axes.11Reviewbasic-tutorials.com/reviews/gadget-reviews/soundcore-sport-x20Read 20 October 2026Technical data table labels the case 61 x 65 x 29 mm as L x W x H.

Certifications

1 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

2AOKB-A39556Owner's manualcdn.shopify.com/s/files/1/0519/2355/0368/files/51005004317_V2_soundcore_Headphone_A3955_EU_Offline_QSG_Safety_90x90mm_20240117.pdfRead 30 September 2026FCC ID: 2AOKB-A3955, IC: 23451-A3955

2AOKB-A3968L, 2AOKB-A3968R3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3968QSG.pdfRead 20 October 2026Quick Start Guide prints FCC ID 2AOKB-A3968L and 2AOKB-A3968R, one per earbud. The case carries no radio ID.

Other certifications

EU Radio Equipment Directive 2014/53/EU conformity, EU RoHS Directive 2011/65/EU and amendment 2015/863 conformity, ISED IC 23451-A3955, Japanese radio technical conformity mark18Maker spec sheet (PDF)salesforce-knowledge-download.s3.us-west-2.amazonaws.com/000027115/en_US/000027115.pdfRead 7 October 2026Producer EU/UK titled declaration V3.0 explicitly binds soundcore P40i Model A3955 to RED 2014/53/EU and RoHS 2011/65/EU plus 2015/863. Signed July 15, 2025. Exact safety guide supplies IC 23451-A3955. Japanese exact maker product page explicitly says technical conformity mark approved product, 2.40-2.48 GHz. No UK statutory names inferred from the combined document title and no standard-number typo silently corrected.19Owner's manualcdn.shopify.com/s/files/1/0519/2355/0368/files/51005004317_V2_soundcore_Headphone_A3955_EU_Offline_QSG_Safety_90x90mm_20240117.pdfRead 7 October 2026Matching safety guide explicitly prints IC 23451-A3955. Existing FCC ID 2AOKB-A3955 remains. Japan radio marking number is visible in text but no certifier name guessed.20Maker product pageankerjapan.com/products/a3955Read 7 October 2026Exact product specification package says radio technical conformity mark approved, operating band 2.40-2.48 GHz. No unrelated medical/communications approval inferred.

Not available

In the box

2 of 2 differ

In the box

Earbuds, Charging case, Five sizes of ear tips, USB-A to USB-C cable, Safety manual, Quick start guide2Maker product pageankerjapan.com/products/a3955Read 30 September 2026Package contents, translated from Japanese product page.

Earbuds, Charging case, Ear tips in five sizes (XS, S, M, L, XL), USB-C charging cable, Quick start guide and safety manual4Maker product pageankerjapan.com/products/a3968Read 20 October 2026Anker Japan lists the earbuds, charging case, five ear-tip sizes, a USB-C cable, a quick start guide and safety manual. Its package line says USB-C and USB-A cable, while its feature text says USB Type-C cable. Gigazine shows a USB Type-C cable.

Cables included

Asoundcore P40i

Type	Count
USB-A to USB-C	1

Source2Maker product pageankerjapan.com/products/a3955Read 30 September 2026Package contents: USB-C and USB-A cable, one charging cable.

Bsoundcore Sport X20

Not available

Links

Not compared

Product page

us.soundcore.com/products/p40i-a39550111Maker product pageus.soundcore.com/products/p40i-a3955011Read 30 September 2026Opened maker product page names exact P40i model.

us.soundcore.com/products/a3968-sport-x20-earbuds5Maker product pageus.soundcore.com/products/a3968-sport-x20-earbudsRead 20 October 2026

Spec sheet

Not available

Not available

Manual

lp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdf3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Manual pairing instructions expressly name soundcore P40i. (PDF page 2)

salesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdf1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000017073/en_US/000017073.pdfRead 20 October 2026English user guide A3968, published in the service index on 2025-09-01.

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.

2years6Owner's manualcdn.shopify.com/s/files/1/0519/2355/0368/files/51005004317_V2_soundcore_Headphone_A3955_EU_Offline_QSG_Safety_90x90mm_20240117.pdfRead 30 September 2026EU safety guide warranty page: 24-month limited warranty. Japan has 18 months plus 6 months after Anker membership registration. Market-specific warranty.

1.5years3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3968QSG.pdfRead 20 October 2026Quick Start Guide and the Amazon US listing say 18-month limited warranty. Stored as 1.5 years.14Retailer pageamazon.com/dp/B0CRT6HQ82Read 20 October 2026Amazon US lists an 18 months warranty.

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