Earbuds / Compare

OnePlus Buds 4 vs soundcore P31i

A

Product A: OnePlus

Buds 4

82 of 166 known

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B

Product B: soundcore

P31i

78 of 166 known

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Every value links to where we found it.

Only differences

AOnePlus Buds 4

Bsoundcore P31i

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.

E513A4Owner's manualoneplus.com/content/dam/oneplus/2024/eu/store/safety_guide/OnePlus_Buds_4_Safety_Guide.pdfRead 8 October 2026Original maker Safety and Warranty booklet, English page 2, explicitly names OnePlus Buds 4 and E513A. Regulatory radio power and SAR do not establish audio specifications.

D1202, D1202Z11, D1202Z21, D1202Z31, D1202Z512Maker product pagesoundcoreusa.myshopify.com/products/d1202-p31i-wirless-earbuds-with-anc.jsRead 8 October 2026Official US soundcore store product data lists the colour SKUs Z11, Z21, Z31 and Z51 (D1202Z11 and so on). Selected reference is Black Z11. Non-US D1202311 is excluded.

GTIN / EAN

Not available

194644247409, 194644251673, 194644251680, 1946442517102Maker product pagesoundcoreusa.myshopify.com/products/d1202-p31i-wirless-earbuds-with-anc.jsRead 8 October 2026UPCs in the official US soundcore store product data: Z11 194644247409, Z21 194644251673, Z31 194644251680, Z51 194644251710.

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

Not available

Not available

Status

Available1Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026

Available1Maker product pagesoundcore.com/products/d1202-p31i-wirless-earbuds-with-ancRead 8 October 2026Exact P31i maker product page, US reference. Technical claims are not reviewer measurements.

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

OnePlus Buds 37Reviewtechradar.com/audio/earbuds-airpods/oneplus-buds-4-reviewRead 23 October 2026TechRadar's review says the OnePlus Buds 4 are the successors to last year's OnePlus Buds 3.

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.

Not available

$49.9910Press articlenotebookcheck.net/Anker-soundcore-P31i-Earbuds-with-LDAC-and-ANC-now-available.1162239.0.htmlRead 8 October 2026Launch availability article 13 November 2025 explicitly distinguishes $49.99 RRP from $44.99 discount. Not current sale price.

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.

Not available

US1Maker product pagesoundcore.com/products/d1202-p31i-wirless-earbuds-with-ancRead 8 October 2026US store page in USD. Reference is D1202Z11 Midnight Black. No Nordic or Japanese SKU is substituted.

ColoursiThe maker's own colour names

Storm Gray, Zen Green1Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026

Midnight Black, Pearl White, Light Blue, Rose Gold2Maker product pagesoundcoreusa.myshopify.com/products/d1202-p31i-wirless-earbuds-with-anc.jsRead 8 October 2026Colour variants in the official US soundcore store product data: Z11 Midnight Black, Z21 Pearl White, Z31 Light Blue, Z51 Rose Gold.

Segment

Music2Maker product pageoneplus.com/us/oneplus-buds-4Read 8 October 2026

Not available

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-ear3Owner's manualmedia.tatacroma.com/Croma%20Assets/Wearable/Wearable%20Devices/User%20Manual/316448_User%20ManualRead 8 October 2026

In-ear3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026Wearing guide explicitly inserts earbuds into ear canal with correctly sealing tips.

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

Stem3Owner's manualmedia.tatacroma.com/Croma%20Assets/Wearable/Wearable%20Devices/User%20Manual/316448_User%20ManualRead 8 October 2026

Stem3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026Stated in the original maker English D1202 User Guide.

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

Not available

Either bud4Maker product pageservice.soundcore.com/article-description/soundcore-P31i-R60i-NC-FAQRead 8 October 2026FAQ 6: putting one earbud in the case and closing lid leaves the other independently usable.

RGB lighting

Not available

Not available

Drivers and sound

10 of 17 differ

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

AOnePlus Buds 4

Role	Diameter (mm)	Count per earbud
Woofer	11	1
Tweeter	6	1

Source1Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026Maker explicitly publishes one 11 mm woofer and one 6 mm tweeter per earbud. Transducer technology is not explicitly stated in the selected source, so row type and driver_type remain unknown.

Bsoundcore P31i

Type	Diameter (mm)
Dynamic	11

Source3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026PDF page 10 states 11 mm driver unit. Transducer count is not inferred from the size row.9Reviewrecordingnow.com/blog/soundcore-p31i-reviewRead 8 October 2026Sound Quality section states 11 mm dynamic drivers. The maker guide supplies size. Per-bud transducer count is not explicitly stated and stays unknown.

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

Not available

Dynamic9Reviewrecordingnow.com/blog/soundcore-p31i-reviewRead 8 October 2026Exact hands-on review Sound Quality section states 11 mm dynamic drivers. Maker manual establishes size. No guessed count or diaphragm alloy composition.

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.

2=CalculatedFrom Drivers per bud

Not available

Diaphragm material

Woofer: 30-layer ceramic-metal diaphragm. Tweeter: flat diaphragm.2Maker product pageoneplus.com/us/oneplus-buds-4Read 8 October 2026Maker illustrated driver descriptions explicitly assign ceramic-metal diaphragm to the woofer and flat diaphragm to the tweeter. Flat does not by itself establish planar-magnetic technology.

Titanium-coated1Maker product pagesoundcore.com/products/d1202-p31i-wirless-earbuds-with-ancRead 8 October 2026Exact P31i maker product page, US reference. Technical claims are not reviewer measurements.

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

Min15 HzMax40 kHz1Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026Maker publishes acoustic Frequency Response of 15 Hz to 40 kHz. Test method and mode are not stated. LHDC sample rate is separate.

Min20 HzMax20 kHz3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026PDF page 10 specifications: 20-20 kHz acoustic frequency response. This is not LDAC transmission bandwidth.

Impedance

Not available

14.2Ω3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026PDF page 10 specifies 14.2 ohms.

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.

192kHz2Maker product pageoneplus.com/us/oneplus-buds-4Read 8 October 2026Maker LHDC 5.0 high-resolution claim: up to 192 kHz / 24-bit, up to 1 Mbps. It does not establish lossless transmission. Compatible LHDC Android host required. iOS native Bluetooth does not support LHDC.

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.

24bits2Maker product pageoneplus.com/us/oneplus-buds-4Read 8 October 2026LHDC 5.0 claim with the same compatible-host and app restrictions as the sample rate.

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

Yes2Maker product pageoneplus.com/us/oneplus-buds-4Read 8 October 2026

Yes3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026PDF page 1 lists HearID Sound in the app. This is a hearing-based profile, not Adaptive EQ.

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.

62Maker product pageoneplus.com/us/oneplus-buds-4Read 8 October 2026

Not available

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

Balanced, Serenade, Bass Mode2Maker product pageoneplus.com/us/oneplus-buds-4Read 8 October 2026

soundcore Signature, Acoustic, Bass Booster, Bass Reducer, Classical6Reviewscarbir.com/tws/soundcore-p31i-reviewRead 8 October 2026Actual exact-review Sound Effects screenshot read at full size: soundcore Signature, Acoustic, Bass Booster, Bass Reducer, Classical. More is navigation, not a preset. Custom EQ bands are not shown and remain unknown. Source screenshot: https://images.squarespace-cdn.com/content/v1/5beb251ab40b9dd2724c2f46/6588a8d7-d293-4581-a82a-d85d43d8c886/Soundcore%2BP31i%2Bsound%2Beffects%2Bapp.PNG7Maker product pageankerjapan.com/blogs/faq/soundcore-p31iRead 8 October 2026Exact P31i FAQ names Bass Booster and Bass Reducer. Other unnamed preset names not borrowed from P30i.

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.

OnePlus 3D Audio2Maker product pageoneplus.com/us/oneplus-buds-4Read 8 October 2026Static OnePlus 3D Audio with the published Android/iOS app requirements. Head tracking is not inferred.

Spatial Audio3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026Stated in the original maker English D1202 User Guide.

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

6 of 11 differ

Active noise cancelling

Yes1Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026

Yes1Maker product pagesoundcore.com/products/d1202-p31i-wirless-earbuds-with-ancRead 8 October 2026Exact P31i maker product page, US reference. Technical claims are not reviewer measurements.

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

Hybrid2Maker product pageoneplus.com/us/oneplus-buds-4Read 8 October 2026Maker identifies feed-forward and feed-back microphone roles in each earbud. Both microphone placements establish hybrid playback ANC, distinct from its adaptive algorithm.

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.

42Maker product pageoneplus.com/us/oneplus-buds-4Read 8 October 2026Two ANC roles per earbud, feed-forward and feed-back, total four across the pair. The separate talk microphone is not added to this count.

Not available

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

Yes1Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026

Yes1Maker product pagesoundcore.com/products/d1202-p31i-wirless-earbuds-with-ancRead 8 October 2026ANC automatically selects a strength based on surroundings.

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

Not available

56Reviewscarbir.com/tws/soundcore-p31i-reviewRead 8 October 2026Exact app observation: manual strengths 1-5. Adaptive and Transport/Outdoor/Indoor profiles are not counted as additional levels.

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

55dB1Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026Up to 55 dB from OnePlus Test Laboratory. The separate maximum cancellation bandwidth is 5500 Hz. This is not an independently measured overall attenuation.

52dB1Maker product pagesoundcore.com/products/d1202-p31i-wirless-earbuds-with-ancRead 8 October 2026Up to 52 dB claimed maximum. Maker internal test, frequency not stated. Not average broadband attenuation.

Transparency mode

Yes1Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026

Yes3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026Stated in the original maker English D1202 User Guide.

Adjustable transparency

Not available

Yes6Reviewscarbir.com/tws/soundcore-p31i-reviewRead 8 October 2026Exact app observation distinguishes Fully Transparent and Vocal Mode, selectable profiles rather than an inferred numeric range.

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

Yes1Maker product pagesoundcore.com/products/d1202-p31i-wirless-earbuds-with-ancRead 8 October 2026Maker specifically names wind-noise reduction algorithm for calls. Separate selectable ANC/transparency wind processing is documented by Scarbir.

Measured

6 of 23 differ

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

The measured default response has increased sub-bass below 100 Hz and otherwise closely follows the SoundGuys Headphone Preference Curve.5Measurementsoundguys.com/oneplus-buds-4-review-142159Read 8 October 2026Written Objective Measurements section describes the measured default curve and explicitly names its target. No numeric graph interpolation or MDAQS score is stored in acoustic deviation fields.

Warm tuning, emphasized bass and slightly underemphasized treble.8Measurementrtings.com/headphones/reviews/anker/soundcore-p31iRead 8 October 2026Public sound-profile teaser: Warm. Test bench 2.3. Full curve, EQ/ANC/codec and test settings are member-only and not accessed.

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

4dB8Measurementrtings.com/headphones/reviews/anker/soundcore-p31iRead 8 October 2026Public sound-profile teaser reports bass emphasis 4 dB relative to RTINGS target on bench 2.3. Exact test settings not public.

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

-3dB8Measurementrtings.com/headphones/reviews/anker/soundcore-p31iRead 8 October 2026Public sound-profile teaser reports treble underemphasis 3 dB relative to RTINGS target on bench 2.3. Exact test settings not public.

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

Speech remains understandable in the published voice samples across several noise environments.5Measurementsoundguys.com/oneplus-buds-4-review-142159Read 8 October 2026Reviewer microphone demonstrations and written conclusions, not a maker call-noise claim. Firmware and codec are not specified.

Speech is clear in quiet conditions. Background noise can make the voice dip, with larger dips in wind.6Reviewscarbir.com/tws/soundcore-p31i-reviewRead 8 October 2026Own phone/video call observations with quiet, incidental noise and wind. Exact source host, codec, firmware and test level not stated. No numerical SNR or latency inferred. Reviewer battery approximate observations lack documented full-discharge method, omitted.

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.

AOnePlus Buds 4

ANC	Hours (h)
Yes	5.52

Source5Measurementsoundguys.com/oneplus-buds-4-review-142159Read 8 October 2026Storm Gray reviewer unit supplied by the maker and tested for two weeks. ANC-on playback lasted 5 h 31 min, stored as 331/60 hours. Firmware, codec and numeric test level are not stated in the product review and remain unknown. This is one earbud charge, not case-inclusive runtime.

Bsoundcore P31i

Hours (h)
7.3

Source8Measurementrtings.com/headphones/reviews/anker/soundcore-p31iRead 8 October 2026Public exact-review P41i comparison reports tested continuous P31i runtime 7.3 h, rounded as published. Test bench 2.3, exact ANC/codec/volume/firmware not public. No settings borrowed from generic methodology or estimated case total. Detailed locked results not accessed.

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

5.52h=CalculatedFrom Battery life (measured)

7.3h=CalculatedFrom Battery life (measured)

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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 pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026Maker states three microphones per side and three-microphone AI calls. Six physical microphones across the pair, not three across the pair.

61Maker product pagesoundcore.com/products/d1202-p31i-wirless-earbuds-with-ancRead 8 October 2026Six AI-enhanced call microphones across the stereo pair. Shared physical microphones count once. No case microphone inferred.

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.

61Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026Maker three microphones per side. The product page labels feed-forward, talk and feed-back roles.

69Reviewrecordingnow.com/blog/soundcore-p31i-reviewRead 8 October 2026Exact hands-on review Microphone Quality section explicitly six total AI-enhanced microphones. Maker six call-microphone claim corroborates total. No separate case mic counted.

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 pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026

AI1Maker product pagesoundcore.com/products/d1202-p31i-wirless-earbuds-with-ancRead 8 October 2026Exact P31i maker product page, US reference. Technical claims are not reviewer measurements.

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

4 of 18 differ

Chip

Not available

Not available

Connections

Bluetooth1Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026

Bluetooth3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026Stated in the original maker English D1202 User Guide.

Bluetooth

5.41Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026

6.13Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026PDF page 10 specifications 6.1, also current US product heading. No value borrowed from P30i or Life P3i.

Bluetooth codecs

LHDC, AAC, SBC1Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026The source names LHDC 5.0, normalized to the schema codec name LHDC. AAC and SBC are also named. LHDC requires a compatible host.

SBC, AAC, LDAC12Maker product pageservice.soundcore.com/product-description/a08e2000002muutAAARead 8 October 2026Exact current US support product descriptor links D1202 manuals and explicitly lists SBC/AAC/LDAC, Bluetooth 6.1. No codec borrowed from Japanese Nxx SKU, whose listing omits LDAC. The malformed IPX55 string is not used.

Bluetooth profiles

HFP, A2DP, AVRCP1Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026

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 pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026

Yes3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026Stated in the original maker English D1202 User Guide.

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

21Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026

23Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026PDF page 3: second source can connect while first remains connected. Dual Connections is on by default.

Multipoint with LDACiMany buds turn multipoint off on LDAC

Not available

Yes4Maker product pageservice.soundcore.com/article-description/soundcore-P31i-R60i-NC-FAQRead 8 October 2026Current exact English FAQ 4 expressly allows Dual Connection and LDAC simultaneously. Earlier Scarbir review says LDAC sacrifices dual connection. Tested firmware is unspecified, no minimum firmware invented. Current maker capability takes priority.

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 Pair1Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026

Google Fast Pair3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026Stated in the original maker English D1202 User Guide.

Audio sharingiShare one stream with a second pair

Not available

Not available

Wireless range (claimed)

10m1Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026

10m3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026Original English guide PDF page 10 specifies Bluetooth range 10 m. Claimed range, no receiver/dongle inference.

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

3 of 3 differ

Low latency mode

Yes2Maker product pageoneplus.com/us/oneplus-buds-4Read 8 October 2026

Not available

Claimed latency

AOnePlus Buds 4

Connection	Mode	Latency (ms)
Bluetooth	Low latency mode	47

Source2Maker product pageoneplus.com/us/oneplus-buds-4Read 8 October 2026Maker laboratory claim 47 ms in its low-latency feature. Host, codec and firmware are not specified. It is not an independently measured latency or a universal guarantee.

Bsoundcore P31i

Not available

Lowest claimed latency

47ms=CalculatedFrom Claimed latency

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.

Android, iOS3Owner's manualmedia.tatacroma.com/Croma%20Assets/Wearable/Wearable%20Devices/User%20Manual/316448_User%20ManualRead 8 October 2026

Android, iOS, Windows, macOS3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026PDF page 2 documents Android/iOS pairing. Windows/Mac audio and microphone routing is separately documented in exact maker FAQ.

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.

AOnePlus Buds 4

Platform	Connection
Android	Bluetooth
iOS	Bluetooth

Source3Owner's manualmedia.tatacroma.com/Croma%20Assets/Wearable/Wearable%20Devices/User%20Manual/316448_User%20ManualRead 8 October 2026Original guide explicitly documents OnePlus Android and other Android/iOS pairing. No USB audio route is assigned to the charging case.

Bsoundcore P31i

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

Source7Maker product pageankerjapan.com/blogs/faq/soundcore-p31iRead 8 October 2026Exact P31i FAQ explicitly lists Windows hands-free microphone/speaker and Mac P31i input/output, plus Android/iPhone Bluetooth audio settings. Basic host routing only, Japanese runtimes/codecs not transferred. Phone microphone flags not inferred from audio pairing.

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

AOnePlus Buds 4

Feature	Needs
LHDC 5.0 high-resolution playback	Compatible Android device with LHDC 5.0. OnePlus Android 12 or later uses Earbuds Function. Other Android 7.0 or later devices use HeyMelody. Not supported on iOS.
OnePlus 3D Audio and Golden Sound	OnePlus Android 12 or later uses Earbuds Function. Other Android 7.0 or later and iOS devices use HeyMelody.
Steady Connect	Select OnePlus phones with OxygenOS 15.0.0 or later.
AI Translation	Select OnePlus devices with OxygenOS 15.0.1 or later. Supported languages are listed in the app.
Voice assistant shortcut	Enable in OnePlus phone Settings or HeyMelody. Available assistant functions depend on the smartphone and its installed assistant.
Single-tap playback control	Disabled by default. Enable manually in OnePlus phone Settings or HeyMelody.
47 ms low-latency mode	Automatically enabled for OnePlus phone users. Other brands require manual activation in HeyMelody.

Source2Maker product pageoneplus.com/us/oneplus-buds-4Read 8 October 2026Exact footnotes 1, 5, 6, 7, 8, 9 and 11 of the US maker product page. These limit advanced features, not ordinary Bluetooth audio compatibility.

Bsoundcore P31i

Feature	Needs
Regional naming	P31i and R60i NC are regional names of D1202 in the maker guide. Reference is US Midnight Black D1202Z11. Japanese codec/app statements are not transferred.
LDAC	Android 8.0+ and compatible LDAC host. Select Preferred audio quality in the soundcore app. LDAC is unavailable on iOS and disables Spatial Audio according to current maker FAQ.
Dual Connections with LDAC	Supported by current exact maker FAQ. Earlier review reports the features as mutually exclusive. Firmware minimum is not documented.
AI assistant and translation	Latest soundcore app connected to earbuds. Allow Android background app operation. Disable Dual Connections for real-time translation as instructed by current guide.
Google Fast Pair	Android 6.0+ with Google Fast Pair support.
Single-earbud listening	Place other earbud in charging case and close lid. Mono control diagram uses Normal or Transparency mode, not ANC.
Computer calls	Windows conferencing software uses P31i hands-free microphone and speaker. Mac selects P31i input/output. Music-only stereo output does not establish call microphone routing.

Source3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026Pairing, mono controls, AI assistant/translation and LDAC sections. Latest app required for AI, Dual Connections disabled for translation, LDAC Android 8+ only. Current English FAQ states Spatial Audio incompatible with LDAC.

Official licence

Not available

Not available

Battery and charging

10 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.

62mAh1Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026Maker unqualified cell capacity of one earbud. Typical versus rated is not identified.

60mAh3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026PDF page 10: 60 mAh per single earbud. Nominal/rated qualifier not stated.

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.

No4Owner's manualoneplus.com/content/dam/oneplus/2024/eu/store/safety_guide/OnePlus_Buds_4_Safety_Guide.pdfRead 8 October 2026Original safety instructions explicitly prohibit replacing or disassembling the battery. No manufacturer-approved normal replacement procedure was found.

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.

AOnePlus Buds 4

Mode	Codec	Includes case recharges	Hours (h)
ANC off	AAC	No	11
ANC off	AAC	Yes	45
ANC on	AAC	No	6
ANC on	AAC	Yes	24
ANC off	LHDC	No	9
ANC off	LHDC	Yes	37
ANC on	LHDC	No	5.5
ANC on	LHDC	Yes	22
Call	Not available	No	6
Call	Not available	Yes	24
Call	Not available	No	4
Call	Not available	Yes	17

Source1Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026All rows use 50% volume. AAC playback claims: ANC off 11 h buds / 45 h total and ANC on 6 h / 24 h. LHDC playback: off 9 h / 37 h and on 5.5 h / 22 h. Call rows 6 h / 24 h are ANC off, and 4 h / 17 h are ANC on. The maker labels those calls HFP, a profile rather than an actual speech codec, so codec is omitted for call rows. The call mode cannot encode ANC, so those conditions remain here. with_case includes the initial earbud charge.

Bsoundcore P31i

Mode	Codec	Includes case recharges	Hours (h)
ANC off	Not available	No	10
ANC off	Not available	Yes	50
ANC on	Not available	No	8
ANC on	Not available	Yes	40
ANC on	LDAC	No	6
ANC on	LDAC	Yes	30

Source3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026PDF page 10: ANC off 10 h/50 h case-inclusive, ANC on 8 h/40 h. Codec not stated. LDAC-specific rows are from separate exact maker usage-tips PDF. Conflicting call figures are not stored.5Maker spec sheet (PDF)m.media-amazon.com/images/I/A1h7EiakJTL.pdfRead 8 October 2026Original three-page soundcore usage-tips document, exact P31i. Page 3 separately states ANC+LDAC 6 h earbuds/30 h case-inclusive. Standard ANC 8 h/40 h and normal 10 h/50 h agree with current manual. Call 5 h/25 h conflicts with English FAQ 5.3 h and Japanese FAQ 5 h/26 h, so all call rows omitted. Codec/volume for standard rows not specified.

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.

6h=CalculatedFrom Claimed battery life

8h=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.

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.

45h=CalculatedFrom Claimed battery life

50h=CalculatedFrom Claimed battery life

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

24h=CalculatedFrom Claimed battery life

40h=CalculatedFrom Claimed battery life

Talk time (claimed)

6h=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.

50min1Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026Maker specifies earbuds-only charge time about 50 minutes. The separate about-80-minute result includes both earbuds and case, so it is not stored as case_charge_time_min.

60min3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026PDF page 10 explicitly full earbud charging 1 h, separately from case.

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

Not available

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

10min1Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026

10min3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026PDF page 4: ten minutes of charging earbuds in case gives up to 3.5 h earbuds-only 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.

3.5h1Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026Maker earbuds-only claim is 3.5 hours after ten minutes. Conditions ANC off, AAC, 50% volume. The eleven-hour quick-charge headline includes case recharges and is not stored here.

3.5h3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026PDF page 4: ten minutes of charging earbuds in case gives up to 3.5 h earbuds-only playback. ANC/codec 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.

530mAh1Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026Maker unqualified charging case cell capacity. It is separate from one-bud capacity.

800mAh3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026PDF page 10: 800 mAh case. Not USB output capacity.

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.

No4Owner's manualoneplus.com/content/dam/oneplus/2024/eu/store/safety_guide/OnePlus_Buds_4_Safety_Guide.pdfRead 8 October 2026Same original safety rule covers the device and accessories, including charging case batteries. Service repair and disposal are not routine user replacement.

Not available

Case charging port

USB-C1Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026

USB-C3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026Stated in the original maker English D1202 User Guide.

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

Not available

180min3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026PDF page 10 explicitly full case charging 3 h. PDF page 4 separately gives combined case+earbuds 3 h via cable, not used to derive the case-only figure.

Wireless charging

No5Measurementsoundguys.com/oneplus-buds-4-review-142159Read 8 October 2026Reviewer explicitly states the USB-C case does not support wireless charging.

No6Reviewscarbir.com/tws/soundcore-p31i-reviewRead 8 October 2026Exact P31i/R60i NC feature list explicitly states no wireless charging.

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

Not available

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.

Touch, Swipe2Maker product pageoneplus.com/us/oneplus-buds-4Read 8 October 2026

Touch, Voice commands3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026Stated in the original maker English D1202 User Guide.

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

Swipe2Maker product pageoneplus.com/us/oneplus-buds-4Read 8 October 2026

Touch6Reviewscarbir.com/tws/soundcore-p31i-reviewRead 8 October 2026Review demonstrates customizable touch control scheme. Volume actions are confirmed in maker FAQ controls setup.

Gestures

Single tap, Double tap, Triple tap, Touch and hold for one second, Slide up and down3Owner's manualmedia.tatacroma.com/Croma%20Assets/Wearable/Wearable%20Devices/User%20Manual/316448_User%20ManualRead 8 October 2026Original English touch table. Single-tap playback is disabled by default and must be enabled in app settings.

Single tap (customizable), Double tap, Triple tap, Touch and hold6Reviewscarbir.com/tws/soundcore-p31i-reviewRead 8 October 2026Reviewer lists single/double/triple tap and long press as customizable touch actions. Current original guide shows default double-tap and hold controls.

Remappable controls

Yes2Maker product pageoneplus.com/us/oneplus-buds-4Read 8 October 2026

Yes4Maker product pageservice.soundcore.com/article-description/soundcore-P31i-R60i-NC-FAQRead 8 October 2026FAQ 6 says mono and stereo touch actions can be customized in soundcore app.

Voice assistant

Google Gemini, Google Assistant, Apple Siri2Maker product pageoneplus.com/us/oneplus-buds-4Read 8 October 2026

Anka3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026PDF pages 5-7 names Anka and its Hey Anka wake phrase. Requires latest connected soundcore app, background app permission on Android. No autonomous offline assistant claim.

Sensors and health

1 of 9 differ

In-ear detection

Not available

Not available

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.

Yes2Maker product pageoneplus.com/us/oneplus-buds-4Read 8 October 2026

Not available

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.

S, M, L1Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026

XS, S, M, L3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026Original guide wearing section: four tip sizes XS, S, M and L, with M installed.

Ear tip materials

Silicone4Owner's manualoneplus.com/content/dam/oneplus/2024/eu/store/safety_guide/OnePlus_Buds_4_Safety_Guide.pdfRead 8 October 2026

Not available

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

Not available

Not available

Ear tip fit test

Yes3Owner's manualmedia.tatacroma.com/Croma%20Assets/Wearable/Wearable%20Devices/User%20Manual/316448_User%20ManualRead 8 October 2026

Yes3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026Stated in the original maker English D1202 User Guide.

Dust and water rating, buds

IP551Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026

IP553Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026PDF page 10 expressly IP55 for earbuds only, not case.

Dust and water rating, case

Not available

Not available

Water resistance depth

Not available

Not available

Software

1 of 6 differ

Companion app

HeyMelody and OnePlus Wireless Earphones3Owner's manualmedia.tatacroma.com/Croma%20Assets/Wearable/Wearable%20Devices/User%20Manual/316448_User%20ManualRead 8 October 2026Original guide names built-in Wireless Earphones / OnePlus Buds settings on OnePlus phones and HeyMelody for other Android/iOS phones. Current US footnotes take precedence for advanced feature OS requirements.

soundcore3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026Stated in the original maker English D1202 User Guide.

App platforms

Android, iOS3Owner's manualmedia.tatacroma.com/Croma%20Assets/Wearable/Wearable%20Devices/User%20Manual/316448_User%20ManualRead 8 October 2026

Android, iOS3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026Stated in the original maker English D1202 User Guide.

User firmware updates

Yes1Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026

Yes3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026Stated in the original maker English D1202 User Guide.

Finding network

Not available

Not available

Precision findingiUWB in the case

Not available

Not available

Live translation

Yes2Maker product pageoneplus.com/us/oneplus-buds-4Read 8 October 2026

Yes1Maker product pagesoundcore.com/products/d1202-p31i-wirless-earbuds-with-ancRead 8 October 2026Exact P31i maker product page, US reference. Technical claims are not reviewer measurements.

Dimensions and weight

1 of 4 differ

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

4.73g(0.2 oz)1Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026Maker single-earbud mass 4.73 ± 0.2 g. Empty-case mass is omitted because the linked workbook has 39.97 g and 39.57 g on differently keyed sheets without an exact colour/configuration bridge. Unlabelled dimension tuples do not establish axes.

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

Not available

Certifications

0 of 3 differ

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

Hi-Res Audio Wireless2Maker product pageoneplus.com/us/oneplus-buds-4Read 8 October 2026Maker displays Hi-Res Audio Wireless branding and describes compatible LHDC 5.0 high-resolution playback.

Hi-Res Audio Wireless13Reviewhifireport.com/soundcore-p31i-by-anker-translation-earbuds-reviewRead 8 October 2026Exact model Sound Quality section explicitly Hi-Res Audio Wireless certification. Maker independently states Hi-Res certified LDAC sound. Certification claim, not evidence of lossless transmission.

Communication certifications

Not available

Not available

FCC IDs

Not available

2AOKB-D120211Regulatory filingfccid.io/2AOKB-D1202/Label/ID-label-and-location-8666896Read 8 October 2026Public original-equipment label exhibit metadata: D1202 wireless headphone, applicant Anker Innovations, FCC ID 2AOKB-D1202, application 15 September 2025. Original FCC exhibit 8666896 mirrored. No assumed separate L/R or case FCC IDs.

Other certifications

Not available

Not available

In the box

2 of 2 differ

In the box

OnePlus Buds 4 (one pair), OnePlus Buds 4 Charging Case, Type-C Charging Cable, Ear Tips (S, M, L pairs, M pre-installed), User Manual and Safety and Warranty1Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026

Earbuds, Charging case, Ear tips in XS, S, M and L (M installed), USB-C charging cable3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026Original guide wearing/pairing/charging sections show supplied case, four tip sizes and provided USB-C charging cable. No power adapter included claim inferred. Guide is linked separately.

Cables included

AOnePlus Buds 4

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

Source5Measurementsoundguys.com/oneplus-buds-4-review-142159Read 8 October 2026Reviewer explicitly identifies the supplied cable as USB-A to USB-C. Length is not stated.

Bsoundcore P31i

Type	Count
USB-C charging cable	1

Source3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026Charging section says provided USB-C charging cable. Host connector and length not stated, left unspecified.

Links

Not compared

Product page

www.oneplus.com/us/oneplus-buds-41Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026

www.soundcore.com/products/d1202-p31i-wirless-earbuds-with-anc1Maker product pagesoundcore.com/products/d1202-p31i-wirless-earbuds-with-ancRead 8 October 2026Exact P31i maker product page, US reference. Technical claims are not reviewer measurements.

Spec sheet

www.oneplus.com/content/dam/oneplus/2025/specs/buds4/parameter-na-buds4-0701.xlsx1Maker product pageoneplus.com/us/oneplus-buds-4/specsRead 8 October 2026Public maker workbook linked by the page. Rendered specifications select sheet P000001. The workbook also includes unselected P000002 with differing case mass and call-profile labels, so no exact colour-dependent case mass is inferred.

salesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdf3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026Specification table in the original maker guide PDF page 10, not a separate marketing sheet.

Manual

media.tatacroma.com/Croma%20Assets/Wearable/Wearable%20Devices/User%20Manual/316448_User%20Manual3Owner's manualmedia.tatacroma.com/Croma%20Assets/Wearable/Wearable%20Devices/User%20Manual/316448_User%20ManualRead 8 October 2026Maker-authored original two-page English/Hindi user guide hosted by the retailer. Its English page was read in full. Global model identity is separately confirmed by the original OnePlus safety document E513A.

salesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdf3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029164/en_US/000029164.pdfRead 8 October 2026Original maker English D1202 User Guide, 11 pages. Exact P31i/R60i NC regional name bridge appears in pairing section. Current features depend on latest app and firmware where described.

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

None of 1 known

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.

Not available

Not available

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