Earbuds / Compare

Samsung Galaxy Buds4 vs Shokz OpenDots 2

A

Product A: Samsung

Galaxy Buds4

80 of 166 known

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B

Product B: Shokz

OpenDots 2

68 of 166 known

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All 166 fields

Every value links to where we found it.

Only differences

ASamsung Galaxy Buds4

BShokz OpenDots 2

General

8 of 8 differ

Series

Galaxy Buds1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026

OpenDots1Maker product pageshokz.com/products/opendots-2Read 14 October 2026The compare table sets OpenDots 2 against OpenDots ONE and the FAQ names OpenDots Air. The OpenDots line is stored as the series, as for OpenFit.

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

SM-R5401Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026

E320, E320-ST-PK-US, E320-ST-BK-US, E320-ST-GY-US, E320-ST-WT-US, E320BK, E320GY, E320WT3Owner's manualcdn.shopify.com/s/files/1/0074/1890/4612/files/E320_Online_User_Manual-EN.pdfRead 14 October 2026Cover: SHOKZ E320.5Maker product pageshokz.com/products/opendots-2.jsRead 14 October 2026US store product data: SKUs E320-ST-PK-US (Pink), E320-ST-BK-US (Black), E320-ST-GY-US (Grey) and E320-ST-WT-US (Pearl White), all at 199.95 USD. No barcode is published.6Maker product pagede.shokz.com/products/opendots-2.jsRead 14 October 2026German store product data: SKUs E320BK (Schwarz), E320GY (Grau) and E320WT (Perlweiss) at 199.00 EUR. No barcode is published.

GTIN / EAN

Not available

810202687523, 810202687530, 81020268754713Retailer pageabt.com/Shokz-OpenDots-2-Open-Ear-Wireless-Earbuds-in-Black-E320STBKUS/p/244917.htmlRead 14 October 2026Retailer spec table: model E320-ST-BK-US, UPC 810202687523.14Retailer pageabt.com/Shokz-OpenDots-2-Open-Ear-Wireless-Earbuds-in-Gray-E320STGYUS/p/244915.htmlRead 14 October 2026Retailer spec table: model E320-ST-GY-US, UPC 810202687530.15Retailer pageabt.com/Shokz-OpenDots-2-Open-Ear-Wireless-Earbuds-in-White-E320STWTUS/p/244916.htmlRead 14 October 2026Retailer spec table: model E320-ST-WT-US, UPC 810202687547.

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

25 February 20267Press releasenews.samsung.com/de/top-klang-trifft-auf-tragekomfort-samsung-prasentiert-galaxy-buds4-serieRead 5 October 2026Release opens preorder February 25 at 19 h. Not first retail.

4 June 20267Press articlesoundguys.com/shokz-clip-on-earbuds-opendots-2-air-158377Read 14 October 2026SoundGuys, 4 June 2026: the OpenDots 2 and OpenDots Air go on sale today.8Press articleaudioxpress.com/news/shokz-introduces-opendots-2-and-opendots-air-open-ear-clip-on-earbudsRead 14 October 2026Announcement report of 4 June 2026.

Status

Not available

Available5Maker product pageshokz.com/products/opendots-2.jsRead 14 October 2026US store lists all four colours as available on 2026-10-14.

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

Samsung Galaxy Buds39Measurementrtings.com/headphones/reviews/samsung/galaxy-buds4Read 5 October 2026RTINGS says the Galaxy Buds4 follow in the footsteps of the Galaxy Buds3.11Measurementrtings.com/headphones/reviews/samsung/galaxy-buds3-truly-wirelessRead 23 October 2026A notice on the RTINGS Galaxy Buds3 review says these headphones were replaced by the Samsung Galaxy Buds4.

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.

$179.996Press releasenews.samsung.com/us/samsung-galaxy-s26-series-galaxy-buds4-series-now-available-worldwideRead 5 October 2026March 11 actual US retail release states $179.99 for Buds4. February announcement rounds it to $179.

$199.951Maker product pageshokz.com/products/opendots-2Read 14 October 2026US store regular price 199.95 USD. SoundGuys and Audioxpress report the same price at the 4 June 2026 launch.7Press articlesoundguys.com/shokz-clip-on-earbuds-opendots-2-air-158377Read 14 October 2026OpenDots 2 at 199.95 dollars. The article names no currency or region and is a US outlet.8Press articleaudioxpress.com/news/shokz-introduces-opendots-2-and-opendots-air-open-ear-clip-on-earbudsRead 14 October 2026OpenDots 2 at 199.95 dollars. No currency or region is named.

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.

€1797Press releasenews.samsung.com/de/top-klang-trifft-auf-tragekomfort-samsung-prasentiert-galaxy-buds4-serieRead 5 October 2026German launch UVP 179 EUR, base Buds4.

€1992Maker product pagede.shokz.com/products/opendots-2Read 14 October 2026Germany: 199 EUR on the maker store, incl. VAT. Appgefahren reports the German start at 199 EUR on 12 June 2026.9Press articleappgefahren.de/shokz-bringt-neue-opendots-2-und-opendots-air-nach-deutschland-400311.htmlRead 14 October 2026German press, 12 June 2026: the OpenDots 2 start in Germany at 199 EUR and are available from now on.

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

Not available

US, DE, GB, JP, AU1Maker product pageshokz.com/products/opendots-2Read 14 October 2026US store with US dollar prices. Documented subset.2Maker product pagede.shokz.com/products/opendots-2Read 14 October 2026German store with euro prices. Documented subset.9Press articleappgefahren.de/shokz-bringt-neue-opendots-2-und-opendots-air-nach-deutschland-400311.htmlRead 14 October 2026Germany, in Pearl White, Grey and Black.10Reviewexpertreviews.co.uk/technology/headphones-audio/shokz-opendots-2-reviewRead 14 October 2026UK review: launched June 2026 at 179 GBP.11Press articleav.watch.impress.co.jp/docs/news/2114399.htmlRead 14 October 2026Japan: released on 4 June 2026 at 29,880 yen.12Reviewdigitalreviews.net/reviews/audio/shokz-opendots-2-reviewRead 14 October 2026Australia: available from 23 July 2026 in Pearl White, Grey and Black, first through JB Hi-Fi.

ColoursiThe maker's own colour names

Black, White1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026

Pearl White, Pink, Grey, Black1Maker product pageshokz.com/products/opendots-2Read 14 October 2026Store lists Pink, Black, Grey and Pearl White. The launch reports and the other regional stores list only Pearl White, Grey and Black. Pink appears on the US store.5Maker product pageshokz.com/products/opendots-2.jsRead 14 October 2026Pink, Black, Grey and Pearl White.

Segment

Not available

Sport1Maker product pageshokz.com/products/opendots-2Read 14 October 2026The Shokz product list groups OpenDots 2 under Workout and Lifestyle open earbuds, the same group as OpenFit 2. The page names travel, exercise, commute and leisure.

Design

2 of 4 differ

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

Semi-in-ear2Maker product pagesamsung.com/us/audio-sound/galaxy-buds4Read 5 October 2026Exact model FAQ describes open-type design that does not seal ear. This maps to semi-in-ear, not canal-unobstructed open-ear.

Open-ear1Maker product pageshokz.com/products/opendots-2Read 14 October 2026Open-ear clip-on design. The speaker rests against the inner ridge of the ear and the battery compartment sits behind the ear.

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

Stem2Maker product pagesamsung.com/us/audio-sound/galaxy-buds4Read 5 October 2026

Clip1Maker product pageshokz.com/products/opendots-2Read 14 October 2026Clip-on earbuds with a flexible nickel-titanium JointArc.

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

Either bud4Measurementsoundguys.com/samsung-galaxy-buds-4-review-154352Read 5 October 2026Exact FAQ explicitly allows either earbud to be used alone.

Either bud1Maker product pageshokz.com/products/opendots-2Read 14 October 2026FAQ: yes, you can listen and take calls with one earbud. Some app features such as firmware updates can be limited.3Owner's manualcdn.shopify.com/s/files/1/0074/1890/4612/files/E320_Online_User_Manual-EN.pdfRead 14 October 2026Each earbud has its own touch controls and the earbuds are interchangeable left and right.

RGB lighting

Not available

Not available

Drivers and sound

11 of 17 differ

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

ASamsung Galaxy Buds4

Type	Diameter (mm)	Count per earbud
Dynamic	11	1

Source1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026Sound section explicitly states an 11 mm dynamic driver. Technical table states one-way speaker. One transducer per earbud.

BShokz OpenDots 2

Type	Diameter (mm)	Count per earbud
Dynamic	11.8	2

Source1Maker product pageshokz.com/products/opendots-2Read 14 October 2026Bassphere 2.0: two custom 11.8 mm drivers in a spherical module that perform like a single 16 mm driver. The maker does not name the driver technology. AV Watch and Digital Reviews call them dynamic. The earbuds do not use bone conduction.2Maker product pagede.shokz.com/products/opendots-2Read 14 October 2026Spec table row Lautsprechertyp: Luftschalltreiber (air conduction driver). Footnote 1: two custom 11.8 mm drivers in a spherical module.7Press articlesoundguys.com/shokz-clip-on-earbuds-opendots-2-air-158377Read 14 October 2026Dual 11.8 mm drivers with Bassphere 2.0.11Press articleav.watch.impress.co.jp/docs/news/2114399.htmlRead 14 October 2026Two 11.8 mm dynamic drivers facing each other with output comparable to a 16 mm driver.12Reviewdigitalreviews.net/reviews/audio/shokz-opendots-2-reviewRead 14 October 2026Dual 11.8 mm dynamic drivers. The roles of the two drivers are not stated, so no role is stored.

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

Dynamic1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026

Not available

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

11mm=CalculatedFrom Drivers per bud

11.8mm=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

2=CalculatedFrom Drivers per bud

Diaphragm material

Not available

Not available

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

Not available

Min100 HzMax20 kHz2Maker product pagede.shokz.com/products/opendots-2Read 14 October 2026Spec table row Frequenzgang: 100 to 20 kHz. Codec and conditions are not stated.

Impedance

Not available

Not available

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

Not available

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.

96kHz1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026Footnote 5: SSC-UHQ up to 24-bit/96 kHz on listed compatible Galaxy S26/S25/S24/S23, Fold7/Flip7/Fold6/Flip6/Fold5/Flip5, Tab S11/S10/S9 with One UI 6.1.1+. Not a lossless claim.

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.

24bits1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026Same SSC-UHQ conditions as max sample rate.

Not available

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

Yes1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026

Not available

Personalised soundiA profile from a hearing test or ear scan

Not available

Not available

Onboard EQ

Yes5Maker spec sheet (PDF)image-us.samsung.com/SamsungUS/home/mobile/audio-sound/galaxy-buds4/Buds4F-Available-Features-by-Device-As-of-2026-03-03.pdfRead 5 October 2026Page 1 Equalizer row for other Bluetooth devices has the double-asterisk condition: enable the setting through an Android device and Wear app, then it remains enabled until disabled through the same app process. This establishes on-earbud setting persistence, not an iOS control app.

Not available

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

91Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026

510Reviewexpertreviews.co.uk/technology/headphones-audio/shokz-opendots-2-reviewRead 14 October 2026Review: a five-band graphic EQ in the app next to four presets and Smart EQ. The maker pages and SmartZone do not give a band count.

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

Not available

Standard, Vocal, Bass, Private1Maker product pageshokz.com/products/opendots-2Read 14 October 2026Page: 4 preset EQ modes, Standard, Bass, Vocal and Private. The user guide also lists Smart EQ and Customize.3Owner's manualcdn.shopify.com/s/files/1/0074/1890/4612/files/E320_Online_User_Manual-EN.pdfRead 14 October 2026EQ Adjustments page: Standard, Vocal, Bass, Private, Smart EQ and Customize. Smart EQ and Customize are not presets.4Maker product pageshokz.com/blogs/news/opendots-2-using-guidesRead 14 October 2026Four presets: Standard, Vocal, Bass and Private. Custom EQ and Smart EQ come from a short listening preference test.

Volume limit

Not available

Not available

Spatial audio

2 of 2 differ

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

360 Audio1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026

Not available

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

Yes1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026360 Audio footnote 8 explicitly covers head tracking with compatible Galaxy phones/tablets One UI 3.1+ and listed Samsung TVs. App/content support can vary.

Not available

Noise cancelling

6 of 11 differ

Active noise cancelling

Yes1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026

No16Reviewyours.co.uk/tech/devices/shokz-opendots-2-reviewRead 14 October 2026Review cons list: no active noise cancellation. The open-ear design has no ANC hardware named by the maker either.

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.

Yes1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026Sound control section says cancellation strength adjusts in real time to surrounding noise and accounts for ear shape and wearing habits.10Maker product pagesamsung.com/ie/audio-sound/galaxy-buds/galaxy-buds4-white-sm-r540nzwaeubRead 5 October 2026Previous paragraph explicitly states ANC algorithm processes and adapts to ear shape/fit in real time.

Not available

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

Not available

Not available

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

Not available

Not available

Transparency mode

Yes1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026

Not available

Adjustable transparency

No3Owner's manualdownloadcenter.samsung.com/content/UM/202603/20260311043809413/WEA_R540_R640_EN_UG_YLA_022626_FINAL.pdfRead 5 October 2026Pages 23/32 explicitly limit ambient volume/hearing-enhancement sliders to Buds4 Pro. Standard Buds4 has ambient mode without these adjustments.

Not available

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

Yes1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026Exact model technical table lists Adaptive noise control. Manual and linked compatibility table cover the adaptive noise-control mode for both models.10Maker product pagesamsung.com/ie/audio-sound/galaxy-buds/galaxy-buds4-white-sm-r540nzwaeubRead 5 October 2026Listen to music while staying connected paragraph explicitly says Galaxy Buds4 adjusts levels of ANC and ambient sound in real time according to environment, with blending. Exact standard model, not Pro.

Not available

Conversation detection

No3Owner's manualdownloadcenter.samsung.com/content/UM/202603/20260311043809413/WEA_R540_R640_EN_UG_YLA_022626_FINAL.pdfRead 5 October 2026Page 23 and compatibility PDF explicitly limit automatic ambient switching when speaking to Buds4 Pro.

Not available

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

Not available

Not available

Measured

3 of 23 differ

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

Not available

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.

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

The reviewed unit records intelligible speech in quiet settings, but background noise introduces distortion and makes calls harder to understand.9Measurementrtings.com/headphones/reviews/samsung/galaxy-buds4Read 5 October 2026Public microphone verdict for White review unit. Numeric lab results are membership-only and were not accessed. Firmware is not stated in public verdict.

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.

ASamsung Galaxy Buds4

Hours (h)
4.93

Source4Measurementsoundguys.com/samsung-galaxy-buds-4-review-154352Read 5 October 2026Battery section standardized one-charge earbuds test 4 h 56 min. Exact black SM-R540NZKFXAR review unit. ANC, codec and firmware not explicitly stated for that result, so omitted from row.

BShokz OpenDots 2

Not available

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

4.93h=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

Not available

Microphones and calls

2 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 pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026Call paragraph and footnote 7 explicitly give three microphones per earbud, six across the pair, isolating voice for calls. VPU is excluded.

61Maker product pageshokz.com/products/opendots-2Read 14 October 2026FAQ: 3 microphones per earbud, a bone-conduction microphone and two air-conduction microphones, with adaptive beamforming and AI noise reduction. The maker counts the bone-conduction microphone as one of the three.

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 pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026Technical table Anzahl Mikrofone states 6. Footnote 7 explicitly states 6 across pair.

61Maker product pageshokz.com/products/opendots-2Read 14 October 2026Three per earbud, six across the pair. The compare table says triple AI noise-canceling microphones per earbud.2Maker product pagede.shokz.com/products/opendots-2Read 14 October 2026Compare table: OpenDots 2 has three AI noise-canceling microphones per earbud, two air-conduction and one bone-conduction.

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

Yes1Maker product pageshokz.com/products/opendots-2Read 14 October 2026A dedicated bone conduction microphone works alongside 2 air-conduction microphones to focus on your voice.

Mic noise reduction

AI1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026Call section explicitly names Deep Neural Network voice separation.

AI1Maker product pageshokz.com/products/opendots-2Read 14 October 2026AI noise reduction with adaptive beamforming.

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

Super wideband1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026Call section and footnote 7: 16 kHz super wideband on compatible Galaxy S26/S25, Fold7/Flip7/Fold6/Flip6, A56, Tab S11/Tab S10 with One UI 6.1.1+. Mobile-network support can vary.

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

9 of 18 differ

Chip

Not available

Not available

Connections

Bluetooth1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026

Bluetooth1Maker product pageshokz.com/products/opendots-2Read 14 October 2026Bluetooth only.

Bluetooth

6.11Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026

6.11Maker product pageshokz.com/products/opendots-2Read 14 October 2026Bluetooth 6.1 with a connection up to 10 m (33 ft).

Bluetooth codecs

AAC, SBC, Samsung Seamless, SSC UHQ, LC31Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026

SBC, AAC2Maker product pagede.shokz.com/products/opendots-2Read 14 October 2026Spec table row Unterstuetzte Audio-Codecs: AAC, SBC.7Press articlesoundguys.com/shokz-clip-on-earbuds-opendots-2-air-158377Read 14 October 2026SBC and AAC only, no higher-resolution codec.10Reviewexpertreviews.co.uk/technology/headphones-audio/shokz-opendots-2-reviewRead 14 October 2026Review: SBC and AAC only. The review says Bluetooth 6.0, the maker says 6.1 and the maker value is stored.

Bluetooth profiles

A2DP, AVRCP, HFP, PBP, TMAP1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026

A2DP, AVRCP, HFP2Maker product pagede.shokz.com/products/opendots-2Read 14 October 2026Spec table row Unterstuetzte Profile: A2DP, AVRCP, HFP.

LE Audio

Yes1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026Exact technical LE Audio yes, footer says LC3 requires compatible LE Audio source.

Not available

Auracast

Yes3Owner's manualdownloadcenter.samsung.com/content/UM/202603/20260311043809413/WEA_R540_R640_EN_UG_YLA_022626_FINAL.pdfRead 5 October 2026Page 33 Listen to audio broadcast, corroborated exact global technical table Auracast. Compatible source/assistant required.

Not available

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

No4Measurementsoundguys.com/samsung-galaxy-buds-4-review-154352Read 5 October 2026Connectivity section explicitly says no true multipoint. Samsung-account switching is separate.

Yes1Maker product pageshokz.com/products/opendots-2Read 14 October 2026MultiPoint Pairing: connect to two devices simultaneously. Set up in the Shokz App.3Owner's manualcdn.shopify.com/s/files/1/0074/1890/4612/files/E320_Online_User_Manual-EN.pdfRead 14 October 2026MultiPoint Pairing page: turned on in the Shokz App to connect two devices.

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

Not available

21Maker product pageshokz.com/products/opendots-2Read 14 October 2026Two devices at once.

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

Yes3Owner's manualdownloadcenter.samsung.com/content/UM/202603/20260311043809413/WEA_R540_R640_EN_UG_YLA_022626_FINAL.pdfRead 5 October 2026Pages 29/30 switch connections among nearby own Galaxy devices for calls/media. This is not general Bluetooth multipoint.

Not available

Fast pairing

Not available

Google Fast Pair, Microsoft Swift Pair1Maker product pageshokz.com/products/opendots-2Read 14 October 2026Page footnote: Fast Pair on Android 11 or later and Microsoft Swift Pair on Windows 10 or later.4Maker product pageshokz.com/blogs/news/opendots-2-using-guidesRead 14 October 2026Google Fast Pair and Microsoft Swift Pair.

Audio sharingiShare one stream with a second pair

Not available

Not available

Wireless range (claimed)

Not available

10m1Maker product pageshokz.com/products/opendots-2Read 14 October 2026Up to 10 m (33 ft). Footnote: range varies with the environment.

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

Yes3Owner's manualdownloadcenter.samsung.com/content/UM/202603/20260311043809413/WEA_R540_R640_EN_UG_YLA_022626_FINAL.pdfRead 5 October 2026Page 32 Gaming Mode minimizes audio delay on Samsung mobile device. No numerical latency inferred.

Not available

Claimed latency

Not available

Not available

Lowest claimed latency

Not available

Not available

Compatibility

2 of 4 differ

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

Android, iOS, Windows2Maker product pagesamsung.com/us/audio-sound/galaxy-buds4Read 5 October 2026FAQ and linked feature compatibility PDF explicitly support Android, iOS and PC Bluetooth streaming. Advanced Galaxy-only features have separate requirements.

Not available

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

Not available

Not available

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

ASamsung Galaxy Buds4

Feature	Needs
Head gestures	Compatible Galaxy device with One UI 8.5 or later. Feature off by default.
Advanced settings	Android 12 or later with at least 1.5 GB RAM according to exact current model footnotes. Galaxy Wearable on Android or compatible Galaxy device settings. Some features require Samsung Account.
SSC-UHQ and super wideband calls	Compatible listed Galaxy phones/tablets and required software. UHQ 24-bit/96 kHz and SWB 16 kHz are Galaxy-only. Mobile network can restrict SWB.
Auto Switch	Supported Galaxy devices signed into same Samsung Account after initial setup. Internet and Bluetooth required. Not general Bluetooth multipoint.
Live Translate and Interpreter	Compatible Galaxy AI phone. Interpreter requires One UI 6.1.1+. Supported languages and account/software requirements vary. Translation runs on phone.
Gaming Mode	Compatible Samsung mobile device.

Source5Maker spec sheet (PDF)image-us.samsung.com/SamsungUS/home/mobile/audio-sound/galaxy-buds4/Buds4F-Available-Features-by-Device-As-of-2026-03-03.pdfRead 5 October 2026Page 1 matrix covers Buds4 in its own column, not only Pro. Footnote 3 and page 2 require One UI 8.5+ for head gestures. Exact maker page footnotes provide stricter Android 12 setting requirement and UHQ/SWB device conditions. Launch prose says Pro only head gestures, but actual Buds4 manual/current compatibility PDF confirm support.

BShokz OpenDots 2

Feature	Needs
Dolby Audio, EQ modes, MultiPoint Pairing and Smart Wear Detection	Turned on or selected in the Shokz App with the earbuds connected to the phone.
Google Fast Pair	Android 11 or later.
Microsoft Swift Pair	Windows 10 or later.
Last known location in Google Find Hub	Android 11 or later and a Google Account.
5-minute quick charge for 2 hours of playback	The charging case must show the green light state. Wireless charging does not support quick charge.
Battery test	Shokz lab at 25 +/- 2 C, SBC audio at 50 percent volume, other features at default.

Source1Maker product pageshokz.com/products/opendots-2Read 14 October 2026Page footnotes 10 and 11, the Shokz App section and the quick charge footnote.

Official licence

Not available

Not available

Battery and charging

12 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.

45mAh1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026Typical 45 mAh per earbud, not rated 42 mAh.

60mAh2Maker product pagede.shokz.com/products/opendots-2Read 14 October 2026Spec table row Akkukapazitaet: earbuds 60 mAh (minimum).

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.

ASamsung Galaxy Buds4

Mode	Includes case recharges	Hours (h)
ANC on	No	5
ANC off	No	6
ANC on	Yes	24
ANC off	Yes	30
Call	No	4
Call	Yes	20

Source1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026Music table 5/6 h earbuds-only and 24/30 h total with case ANC on/off. Call table stored ANC off 4/20 h, because call enum cannot distinguish ANC state. ANC on 3.5/18 h omitted.

BShokz OpenDots 2

Mode	Codec	Includes case recharges	Hours (h)
ANC off	SBC	No	10
ANC off	SBC	Yes	40
Call	Not available	No	6.5
Call	Not available	Yes	25

Source1Maker product pageshokz.com/products/opendots-2Read 14 October 2026Up to 10 hours per charge and up to 40 hours with the charging case. Footnote: Shokz Laboratory, 25 +/- 2 C, SBC-encoded audio at 50 percent volume, all other features default. The call rows come from the German spec table.2Maker product pagede.shokz.com/products/opendots-2Read 14 October 2026Spec table row Akkulaufzeit: up to 6.5 hours of talk time per charge and up to 25 hours with the charging case. Music: up to 10 hours and 40 hours with the case.

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

6h=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.

5h=CalculatedFrom Claimed battery life

Not available

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

6h=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.

30h=CalculatedFrom Claimed battery life

40h=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

Not available

Talk time (claimed)

4h=CalculatedFrom Claimed battery life

6.5h=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.

Not available

60min1Maker product pageshokz.com/products/opendots-2Read 14 October 2026Compare table: charge time for the earbuds is 1 hour. The user guide says about 60 minutes in the case.2Maker product pagede.shokz.com/products/opendots-2Read 14 October 2026Spec table row Ladezeit: earbuds in the charging case 60 minutes.3Owner's manualcdn.shopify.com/s/files/1/0074/1890/4612/files/E320_Online_User_Manual-EN.pdfRead 14 October 2026The earbuds are fully charged after about 60 minutes in the 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

The charging case takes 5 V plus or minus 5 percent over USB-C and the user guide advises against higher-voltage power sources. Third-party cables can lengthen charging. Wireless charging takes about 240 minutes for an empty case and longer with a silicone cover. Wireless charging does not support quick charge.2Maker product pagede.shokz.com/products/opendots-2Read 14 October 2026Spec table row Ladespannung: 5 V +/- 5 percent. The user guide and the wireless charging footnote give the rest.

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

Not available

5min1Maker product pageshokz.com/products/opendots-2Read 14 October 2026Page: a 5-minute fast charge gives 2 hours of playback. The case must be in the green light state.2Maker product pagede.shokz.com/products/opendots-2Read 14 October 2026Spec table row Schnellladen: 5 minutes of quick charge give up to 2 hours of music 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.

Not available

2h1Maker product pageshokz.com/products/opendots-2Read 14 October 2026Footnote: 5 minutes in the case plays SBC audio at 50 percent volume for 120 minutes. Earbuds only.

Charging case

4 of 10 differ

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

515mAh1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026Typical 515 mAh, not rated 500 mAh.

590mAh2Maker product pagede.shokz.com/products/opendots-2Read 14 October 2026Spec table row Akkukapazitaet: charging case 590 mAh (minimum).

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 manualdownloadcenter.samsung.com/content/UM/202603/20260311043809413/WEA_R540_R640_EN_UG_YLA_022626_FINAL.pdfRead 5 October 2026

USB-C3Owner's manualcdn.shopify.com/s/files/1/0074/1890/4612/files/E320_Online_User_Manual-EN.pdfRead 14 October 2026Insert the provided USB-C to USB-C charging cable into the charging case.

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

Not available

120min1Maker product pageshokz.com/products/opendots-2Read 14 October 2026Compare table: 2 hours for the case with wired charging, 4 hours wireless.2Maker product pagede.shokz.com/products/opendots-2Read 14 October 2026Spec table row Ladezeit: empty charging case 120 minutes wired and 240 minutes wireless.3Owner's manualcdn.shopify.com/s/files/1/0074/1890/4612/files/E320_Online_User_Manual-EN.pdfRead 14 October 2026About 2 hours by cable and about 4 hours wireless.

Wireless charging

Yes2Maker product pagesamsung.com/us/audio-sound/galaxy-buds4Read 5 October 2026

Yes1Maker product pageshokz.com/products/opendots-2Read 14 October 2026Qi-certified wireless charging.3Owner's manualcdn.shopify.com/s/files/1/0074/1890/4612/files/E320_Online_User_Manual-EN.pdfRead 14 October 2026Alternatively place the charging case on a certified wireless charger.

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

Not available

Qi1Maker product pageshokz.com/products/opendots-2Read 14 October 2026Qi-certified. The FAQ says any Qi charger should work.

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.

No4Measurementsoundguys.com/samsung-galaxy-buds-4-review-154352Read 5 October 2026Design section explicitly states there is no speaker in the charging case.

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.

Pressure, Swipe, Head gestures3Owner's manualdownloadcenter.samsung.com/content/UM/202603/20260311043809413/WEA_R540_R640_EN_UG_YLA_022626_FINAL.pdfRead 5 October 2026Page 17 controls table and page 25 head gestures. Voice commands are Pro only and are not transferred to Buds4.

Touch, Pressure3Owner's manualcdn.shopify.com/s/files/1/0074/1890/4612/files/E320_Online_User_Manual-EN.pdfRead 14 October 2026Single-finger tap on the JointArc or battery compartment and a two-finger pinch on both ends of the battery compartment. The maker page calls the pinch a force-sensor gesture.

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

Swipe3Owner's manualdownloadcenter.samsung.com/content/UM/202603/20260311043809413/WEA_R540_R640_EN_UG_YLA_022626_FINAL.pdfRead 5 October 2026

Pressure3Owner's manualcdn.shopify.com/s/files/1/0074/1890/4612/files/E320_Online_User_Manual-EN.pdfRead 14 October 2026Left pinch and hold lowers the volume. Right pinch and hold raises it.

Gestures

Single pinch, Double pinch, Triple pinch, Pinch and hold, Swipe up or down, Nod or shake head3Owner's manualdownloadcenter.samsung.com/content/UM/202603/20260311043809413/WEA_R540_R640_EN_UG_YLA_022626_FINAL.pdfRead 5 October 2026Pages 17/25. Head gestures require current compatible Galaxy software. Maker current compatibility PDF and US footnote 8 require One UI 8.5+, rather than older manual One UI 8.0.

Pinch once: play or pause, answer or end a call, Tap twice: play or pause, Pinch twice: reject a call, Left pinch twice: previous track, Right pinch twice: next track, Left pinch and hold: volume down, Right pinch and hold: volume up3Owner's manualcdn.shopify.com/s/files/1/0074/1890/4612/files/E320_Online_User_Manual-EN.pdfRead 14 October 2026Touch Control Instructions, Audio Control and Call Management pages. The guide's symbols do not extract fully from the PDF, so gestures are read from the text. Tap x2 and Pinch x1 both play or pause.

Remappable controls

Yes3Owner's manualdownloadcenter.samsung.com/content/UM/202603/20260311043809413/WEA_R540_R640_EN_UG_YLA_022626_FINAL.pdfRead 5 October 2026Page 24 left and right pinch-and-hold shortcuts can be assigned independently.

Yes3Owner's manualcdn.shopify.com/s/files/1/0074/1890/4612/files/E320_Online_User_Manual-EN.pdfRead 14 October 2026The Shokz App page: customize gesture controls.4Maker product pageshokz.com/blogs/news/opendots-2-using-guidesRead 14 October 2026Custom gestures: you can remap pinch and tap combinations in the Shokz App.

Voice assistant

Bixby, Google Gemini1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026

Not available

Sensors and health

2 of 9 differ

In-ear detection

Yes3Owner's manualdownloadcenter.samsung.com/content/UM/202603/20260311043809413/WEA_R540_R640_EN_UG_YLA_022626_FINAL.pdfRead 5 October 2026Page 31 In-ear detection routes calls according to whether buds are worn. Automatic media pause is not inferred.

Yes1Maker product pageshokz.com/products/opendots-2Read 14 October 2026FAQ: Smart Wear Detection plays or pauses audio when the earbuds are worn or removed. It can be turned off in the Shokz App.3Owner's manualcdn.shopify.com/s/files/1/0074/1890/4612/files/E320_Online_User_Manual-EN.pdfRead 14 October 2026Wear Detection page: the earbuds detect whether they are worn and play or pause. It can be turned off in the Shokz App.

Sensors

Accelerometer, Gyroscope, Hall sensor, Pressure sensor, Proximity sensor, Touch sensor, Voice Pickup Unit1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026

Force sensor1Maker product pageshokz.com/products/opendots-2Read 14 October 2026Page: upgraded force-sensor pinch gesture.

Heart rate sensor

Not available

Not available

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

Not available

Not available

Hearing aid featureiAmplification for mild to moderate hearing loss

Not available

Not available

Medical clearances

Not available

Not available

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

Not available

Not available

Hearing protectioniLimits sudden loud sounds

Not available

Not available

Health features

Neck stretch reminders3Owner's manualdownloadcenter.samsung.com/content/UM/202603/20260311043809413/WEA_R540_R640_EN_UG_YLA_022626_FINAL.pdfRead 5 October 2026Page 31 detects head bent down 10 minutes and recommends neck stretching. Requires calibration.

Not available

Fit and durability

4 of 7 differ

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

Not available

Not available

Ear tip materials

Not available

Not available

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

None4Measurementsoundguys.com/samsung-galaxy-buds-4-review-154352Read 5 October 2026Design/ANC discussion explicitly states no ear tip, fin or secondary anchor. No stabilizer is present.

Not available

Ear tip fit test

No3Owner's manualdownloadcenter.samsung.com/content/UM/202603/20260311043809413/WEA_R540_R640_EN_UG_YLA_022626_FINAL.pdfRead 5 October 2026Page 28 explicitly limits Earbud fit test to Buds4 Pro.

Not available

Dust and water rating, buds

IP541Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026

IP571Maker product pageshokz.com/products/opendots-2Read 14 October 2026Earbuds IP57 under IEC 60529. The rating applies to the earbuds only.2Maker product pagede.shokz.com/products/opendots-2Read 14 October 2026Spec table row Schutzklasse: earbuds IP57.3Owner's manualcdn.shopify.com/s/files/1/0074/1890/4612/files/E320_Online_User_Manual-EN.pdfRead 14 October 2026IP Rating page: the earbuds meet IP57 under IEC 60529. It does not apply to the charging case.

Dust and water rating, case

Not available

IP541Maker product pageshokz.com/products/opendots-2Read 14 October 2026FAQ: IP54 for the charging case.2Maker product pagede.shokz.com/products/opendots-2Read 14 October 2026Spec table row Schutzklasse: charging case IP54.3Owner's manualcdn.shopify.com/s/files/1/0074/1890/4612/files/E320_Online_User_Manual-EN.pdfRead 14 October 2026Storage and Maintenance page: the charging case has an IP54 dust and water resistant function.

Water resistance depth

Not available

Not available

Software

4 of 6 differ

Companion app

Galaxy Wearable3Owner's manualdownloadcenter.samsung.com/content/UM/202603/20260311043809413/WEA_R540_R640_EN_UG_YLA_022626_FINAL.pdfRead 5 October 2026Pages 21/22 allow Galaxy Wearable or Galaxy device settings. Current exact maker model footnotes require Android 12+ and minimum 1.5 GB RAM for advanced configuration.

Shokz App1Maker product pageshokz.com/products/opendots-2Read 14 October 2026Shokz App.

App platforms

Android3Owner's manualdownloadcenter.samsung.com/content/UM/202603/20260311043809413/WEA_R540_R640_EN_UG_YLA_022626_FINAL.pdfRead 5 October 2026

Android, iOS3Owner's manualcdn.shopify.com/s/files/1/0074/1890/4612/files/E320_Online_User_Manual-EN.pdfRead 14 October 2026The guide shows the Apple and Google Play download for the Shokz App.

User firmware updates

Yes3Owner's manualdownloadcenter.samsung.com/content/UM/202603/20260311043809413/WEA_R540_R640_EN_UG_YLA_022626_FINAL.pdfRead 5 October 2026Page 34 Earbuds software update instructions.

Yes1Maker product pageshokz.com/products/opendots-2Read 14 October 2026Shokz App: firmware updates and battery status.4Maker product pageshokz.com/blogs/news/opendots-2-using-guidesRead 14 October 2026The Shokz App lets you download firmware updates.

Finding network

Samsung Find1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026

Google Find Hub1Maker product pageshokz.com/products/opendots-2Read 14 October 2026Page: view the last known location in Google's Find Hub app. Needs Android 11 or later and a Google Account. Find My Earbuds also rings an earbud from the app.3Owner's manualcdn.shopify.com/s/files/1/0074/1890/4612/files/E320_Online_User_Manual-EN.pdfRead 14 October 2026Find My Earbuds page: ping the left or right earbud from the Shokz App to ring it.4Maker product pageshokz.com/blogs/news/opendots-2-using-guidesRead 14 October 2026On Android 11 or later you can see the last known location in the Google Find Hub app.

Precision findingiUWB in the case

Not available

Not available

Live translation

Yes1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026Exact model interpreter paragraph and footnote 12: translation is performed on compatible Galaxy AI phone One UI 6.1.1+, played through earbuds.

Not available

Dimensions and weight

4 of 4 differ

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

4.6g(0.2 oz)1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026

6.4g(0.2 oz)1Maker product pageshokz.com/products/opendots-2Read 14 October 2026Compare table: earbuds 6.4 g plus or minus 0.2 g.2Maker product pagede.shokz.com/products/opendots-2Read 14 October 2026Spec table row Gewicht: earbuds 6.4 g +/- 0.2 g.

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

Width18.3Height30.5Depth19.3mm(0.7 × 1.2 × 0.8 in)1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026Exact technical HxWxD table 30.5 x 18.3 x 19.3 mm.

Not available

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

45.1g(1.6 oz)1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026

38.8g(1.4 oz)1Maker product pageshokz.com/products/opendots-2Read 14 October 2026Compare table: charging case 38.8 g plus or minus 2 g. Total weight 51.6 g plus or minus 2.4 g, which equals the case plus two earbuds, so this is the empty case.2Maker product pagede.shokz.com/products/opendots-2Read 14 October 2026Spec table row Gewicht: charging case 38.8 g +/- 2 g.

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

Width28.3Height51Depth51mm(1.1 × 2 × 2 in)1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026Exact technical HxWxD table 51 x 28.3 x 51 mm.

Not available

Certifications

None of 3 known

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

Not available

Not available

Communication certifications

Not available

Not available

FCC IDs

Not available

Not available

Other certifications

Not available

Not available

In the box

2 of 2 differ

In the box

Galaxy Buds4 earbuds, Charging case, Quick Start Guide2Maker product pagesamsung.com/us/audio-sound/galaxy-buds4Read 5 October 2026Exact model FAQ lists earbuds, case and Quick Start Guide. USB-C cable and charger excluded.

OpenDots 2 Earbuds, OpenDots 2 Charging Case, USB-C Charging Cable, User Guide, Legal Information, App Card, Warranty Card1Maker product pageshokz.com/products/opendots-2Read 14 October 2026What's in the box list.3Owner's manualcdn.shopify.com/s/files/1/0074/1890/4612/files/E320_Online_User_Manual-EN.pdfRead 14 October 2026What's in the Box page. The guide shows a packaging box as well.

Cables included

ASamsung Galaxy Buds4

Not available

BShokz OpenDots 2

Type	Count
USB-C to USB-C	1

Source3Owner's manualcdn.shopify.com/s/files/1/0074/1890/4612/files/E320_Online_User_Manual-EN.pdfRead 14 October 2026What's in the box page: USB-C Charging Cable x1. The charging page calls it a USB-C to USB-C cable.

Links

Not compared

Product page

www.samsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbt1Maker product pagesamsung.com/de/audio-sound/galaxy-buds/galaxy-buds4-black-sm-r540nzkadbtRead 5 October 2026

shokz.com/products/opendots-21Maker product pageshokz.com/products/opendots-2Read 14 October 2026US maker product page.

Spec sheet

Not available

de.shokz.com/products/opendots-22Maker product pagede.shokz.com/products/opendots-2Read 14 October 2026The German product page holds the full spec table.

Manual

downloadcenter.samsung.com/content/UM/202603/20260311043809413/WEA_R540_R640_EN_UG_YLA_022626_FINAL.pdf3Owner's manualdownloadcenter.samsung.com/content/UM/202603/20260311043809413/WEA_R540_R640_EN_UG_YLA_022626_FINAL.pdfRead 5 October 2026Cover identifies Galaxy Buds4 and Buds4 Pro, separate layouts pages 4/5.

cdn.shopify.com/s/files/1/0074/1890/4612/files/E320_Online_User_Manual-EN.pdf3Owner's manualcdn.shopify.com/s/files/1/0074/1890/4612/files/E320_Online_User_Manual-EN.pdfRead 14 October 2026Online user guide, English.

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.

Not available

2years1Maker product pageshokz.com/products/opendots-2Read 14 October 2026US store: 2-year warranty on every Shokz.com purchase. The German store also says 2 years.2Maker product pagede.shokz.com/products/opendots-2Read 14 October 2026Spec table row Garantie: 2 Jahre.

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