Smartwatches / Compare

Google Pixel Watch 4 vs OnePlus Watch 3

A

Product A: Google

Pixel Watch 4

97 of 150 known

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B

Product B: OnePlus

Watch 3

87 of 150 known

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Every value links to where we found it.

Only differences

AGoogle Pixel Watch 4

BOnePlus Watch 3

General

6 of 10 differ

Series

Pixel Watch5Press releaseblog.google/products-and-platforms/devices/pixel/pixel-watch-4Read 5 October 2026

Watch1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

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

GHH4K, GWSQ2, G8AK3, G1KAW4Owner's manualsupport.google.com/product-documentation/answer/16323835Read 5 October 2026Regulatory Information USA and Japan exact size/radio mapping: GHH4K Wi-Fi 41 mm, GWSQ2 LTE 41 mm, G8AK3 Wi-Fi 45 mm, G1KAW LTE 45 mm.

OPWWE2511Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026Original large OnePlus Watch 3 OPWWE251. The separately marketed 43 mm OPWE242 is excluded.7Maker product pageoneplus.com/uk/pstisocRead 8 October 2026Public list explicitly distinguishes OnePlus Watch3 OPWWE251 from OnePlus Watch3 43 mm OPWE242. PSTI security support is not an OS-update-years promise.

GTIN / EAN

Not available

Not available

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

20 August 20255Press releaseblog.google/products-and-platforms/devices/pixel/pixel-watch-4Read 5 October 2026

18 February 20253Press releaseoneplus.com/us/press/press-release/oneplus-unveils-its-latest-flagship-smartwatch-oneplus-watch-3Read 8 October 2026

Status

Not available

Not available

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

Google Pixel Watch 318Reviewnotebookcheck.net/Google-Pixel-Watch-4-launches-with-satellite-connectivity-longer-battery-life-and-replaceable-battery.1092536.0.htmlRead 23 October 2026Notebookcheck says Google has just unveiled the successor to the Pixel Watch 3 with the Pixel Watch 4.

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.

Google Pixel Watch 519Reviewnotebookcheck.com/Google-Pixel-Watch-5-zeigt-sich-in-offiziellen-Pressebildern-und-vier-Pixel-11-Farben.1342670.0.htmlRead 23 October 2026Notebookcheck's German report calls the Pixel Watch 5 the successor of the Pixel Watch 4.20Reviewengadget.com/2234932/google-pixel-watch-5-announced-priceRead 23 October 2026Engadget's launch report says the Pixel Watch 5 hardware is not much different from its predecessor and has the same specs as the Pixel Watch 4 apart from the chip and storage.

OnePlus Watch 411Reviewnotebookcheck.net/OnePlus-Watch-4-New-Wear-OS-smartwatch-detailed-before-global-release.1275026.0.htmlRead 23 October 2026Notebookcheck's preview says the OnePlus Watch 4 is replacing the OnePlus Watch 3.

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

$3495Press releaseblog.google/products-and-platforms/devices/pixel/pixel-watch-4Read 5 October 202641 mm 349 Wi-Fi/449 LTE, 45 mm 399 Wi-Fi/499 LTE. Exact size/radio prices repeated in every variant, avoiding inherited starter price.

Not available

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.

€3996Press releaseblog.google/intl/de-de/produkte/hardware/pixel-watch-4-ankuendigungRead 5 October 2026Jetzt vorbestellen: German MSRP including VAT. 41 mm 399 Wi-Fi/499 LTE, 45 mm 449 Wi-Fi/549 LTE.

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

GB1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026UK reference page, including its ECG-capable sensor table. North American ECG app eligibility is not inherited.

ColoursiThe maker's own colour names

Matte Black, Polished Silver, Champagne Gold, Satin Moonstone1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Obsidian Titanium1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026Obsidian Titanium reference. The titanium wording describes the bezel, not an all-titanium housing.

Segment

Smartwatch4Owner's manualsupport.google.com/product-documentation/answer/16323835Read 5 October 2026Regulatory Taiwan section explicitly names the equipment Smart watch for GHH4K/G8AK3. Product headings identify all four configurations as Pixel Watch 4.

Smartwatch1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

OS updates promisediYears of explicitly promised OS updates. A security-only support period does not establish an OS-upgrade promise.

Not available

Not available

Security updates untiliExact end date published for security-update support of this model. Do not calculate it from a stated number of years. A security-only period does not promise OS upgrades.

Not available

Not available

Case

7 of 8 differ

Case sizeiMarketed case-size options. The marketed size can differ from physical case height, such as ceramic editions. Base dimensions describe the smallest base-material case.

41, 45mm1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Not available

Case shape

Round7Measurementfrandroid.com/marques/google/2816313_test-de-la-google-pixel-watch-4-une-montre-qui-mise-a-fond-la-formeRead 5 October 2026

Round1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

Case materialiMaterial of the housing body, not just the bezel. Use Mixed when the maker describes a mixture of housing/frame materials. Read the published-material field for the parts and proportions.

Aluminium1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Stainless steel1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

Case material (as published)

100% recycled aluminum1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Black stainless steel case with black titanium bezel1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

BackiMaterial of the back of the smallest base-material case. Other materials or regional editions can differ. See source notes.

Not available

Plastic5Spec databasephonearena.com/phones/OnePlus-Watch-3_id12649Read 8 October 2026Design > Materials explicitly distinguishes Plastic back and Stainless-steel frame.

Case dimensionsiPhysical case height, width and thickness. The source note states exclusions such as the heart-rate sensor protrusion.

Height41Width41Thickness12.3mm(1.6 × 1.6 × 0.5 in)1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026Pixel Watch 4 section, Dimensions and Weight. Physical 41 or 45 mm diameter, 12.3 mm height. Both in-plane body dimensions equal published diameter, not display size.

Thickness11.75mm1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026Maker publishes 46.6 mm excluding lugs x 47.6 mm x 11.75 mm excluding the sensor area. Height/width axes are not labelled, and secondary lists reverse their order. Only unambiguous thickness is stored.

Weight (case only)iWatch body without a strap. An unqualified published weight must not be assumed to exclude the strap.

31g(1.1 oz)1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026Pixel Watch 4 weight 31 g for 41 mm, 36.7 g for 45 mm. Official PDF explicitly excludes band.2Maker spec sheet (PDF)cdn.uc.assets.prezly.com/080a6836-6d23-4f4b-b0ad-82bb50dbfb5a/-/inline/no/Pixel%20Watch%204%20-%20enUS%20-%20Tech%20Specs.pdfRead 5 October 2026Pages 1 and 7 Dimensions and Weight explicitly excludes band.

49.7g(1.8 oz)1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026Size and Weight: 49.7 g excluding wrist strap.

Weight with strapiWatch with the stated strap attached. Strap material and case size belong in the source note. Reviewer measurements belong in measured fields.

Not available

81g(2.9 oz)1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026Size and Weight: 81 g including the supplied wrist strap.

Durability

2 of 8 differ

Water resistanceiStatic water-pressure rating in atmospheres. It is not a safe swimming or diving depth. Diving limits are listed separately.

5ATM1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

5ATM1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

Water resistance standard

ISO 22810:20101Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 20262Maker spec sheet (PDF)cdn.uc.assets.prezly.com/080a6836-6d23-4f4b-b0ad-82bb50dbfb5a/-/inline/no/Pixel%20Watch%204%20-%20enUS%20-%20Tech%20Specs.pdfRead 5 October 2026Footnote 15, pages 6 and 13. ISO 22810:2010, static 5 ATM rating. Shallow water only, not high-velocity water or diving.

ISO 22810:20103Press releaseoneplus.com/us/press/press-release/oneplus-unveils-its-latest-flagship-smartwatch-oneplus-watch-3Read 8 October 20265 ATM under ISO 22810:2010. Not suitable for diving/hot showers/sauna. No dive depth is inferred.

Dust and water rating

IP681Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

IP681Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

Dive rating

Not available

Not available

Max dive depthiMaker-rated depth for the stated diving use, not a conversion from the water-resistance pressure rating.

Not available

Not available

MIL-STD-810iMaker claim that the watch was tested against specified MIL-STD-810 methods. It is not a guarantee for every military-standard test.

Not available

Yes1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

MIL-STD-810 tests

Not available

Low pressure (altitude), High temperature, Low temperature, Temperature shock, Solar radiation, Rain, Humidity and heat, Salt spray, Sand and dust, Immersion, Vibration, Impact, Temperature-humidity-altitude, Fluid contamination, Acidic atmosphere, Ice accumulation and freezing rain1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026Maker named MIL-STD-810H test list. The 70 C/-40 C durability tests are not operating-temperature limits.

Operating temperatureiPublished operating range. Source notes identify on-wrist limits and other operating conditions. Storage or charging limits are excluded.

Min0Max35°C4Owner's manualsupport.google.com/product-documentation/answer/16323835Read 5 October 2026Handling section. Device works best 0 to 35 C. Storage -20 to 45 C is not operating range.

Min0Max35°C2Owner's manualmanuals.plus/m/1d67b974739804b0af768b59851b1d7b7454726774db7bbc8ee939a02edfcf62_optim.pdfRead 8 October 2026NFC Description, printed page 4, instructs use within 0-35 C. Military thermal test extremes and VOOC charging battery-temperature limits are separate.

Display

11 of 14 differ

Display type

LTPO OLED1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

LTPO OLED1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

Display type (as published)

Actua 360 display1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

LTPO AMOLED1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

Screen sizeiPublished active display diagonal for a rectangular display, or diameter for a round display. Do not calculate it from pixels or display area.

1.33in(3.4 cm)7Measurementfrandroid.com/marques/google/2816313_test-de-la-google-pixel-watch-4-une-montre-qui-mise-a-fond-la-formeRead 5 October 2026Screen section explicitly states round active-display diameter 1.33 inches 41 mm, 1.5 inches 45 mm. Not computed from case, pixels or display area.

1.5in(3.8 cm)1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

Resolution

426 × 426px7Measurementfrandroid.com/marques/google/2816313_test-de-la-google-pixel-watch-4-une-montre-qui-mise-a-fond-la-formeRead 5 October 2026Screen section explicitly gives 426x426 for 41 mm and 480x480 for 45 mm. Manufacturer help omits resolutions.

466 × 466px1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

Pixel densityiPublished pixel density. A rectangular diagonal formula must not be applied to a round display.

320ppi1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Not available

Display area

896mm²7Measurementfrandroid.com/marques/google/2816313_test-de-la-google-pixel-watch-4-une-montre-qui-mise-a-fond-la-formeRead 5 October 2026Screen section explicitly publishes 896 mm² for 41 mm and 1140 mm² for 45 mm. These are published display areas, not calculated from diameter or pixels. Exact size values repeated in all four variants.

Not available

Touchscreen

Yes8Owner's manualsupport.google.com/googlepixelwatch/answer/13044412Read 5 October 2026Install Google Play Store apps: press crown and tap Play Store to install.

Yes4Reviewandroidcentral.com/wearables/oneplus-watch-3-reviewRead 8 October 2026

Max refresh rateiHighest published display refresh rate in active operation.

60Hz1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Not available

Min refresh rateiLowest published display refresh rate, usually in always-on mode. It is not the active-use minimum unless stated.

1Hz1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Not available

Peak brightnessiMaker peak-brightness claim. It may apply to a small area or bright ambient light. Full-screen limits and battery/temperature conditions belong in source notes.

3,000nits1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

2,200nits1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026Published peak up to 2200 nits, not a measured full-screen value.

Minimum brightness

1nit1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Not available

Always-on display

Yes1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Yes4Reviewandroidcentral.com/wearables/oneplus-watch-3-reviewRead 8 October 2026

Display cover

Gorilla Glass1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Sapphire1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

Display cover (as published)

Custom 3D Corning Gorilla Glass 51Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Sapphire crystal1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

Platform

11 of 15 differ

Platform

Wear OS1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Wear OS1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

OS at launch

Wear OS 6.01Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Wear OS 5 and RTOS3Press releaseoneplus.com/us/press/press-release/oneplus-unveils-its-latest-flagship-smartwatch-oneplus-watch-3Read 8 October 2026

Software

Not available

Not available

Latest OS

Wear OS 717Retailer pageverizon.com/support/google-pixel-watch-4-updateRead 5 October 2026Official carrier support history for exact Pixel Watch 4 identifies Wear OS 7 update and August 2026 security patch. Major OS version only, not firmware build or security patch date.

Not available

Works with

Android1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Android2Owner's manualmanuals.plus/m/1d67b974739804b0af768b59851b1d7b7454726774db7bbc8ee939a02edfcf62_optim.pdfRead 8 October 2026

Phone requirement

Most phones running Android 11.0 or newer. Google Account and Google Pixel Watch app required.1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Android 9.0 or later with Google Mobile Services 23.45.23 or later and OHealth. iOS and Android Go are not supported.2Owner's manualmanuals.plus/m/1d67b974739804b0af768b59851b1d7b7454726774db7bbc8ee939a02edfcf62_optim.pdfRead 8 October 2026

App store

Yes8Owner's manualsupport.google.com/googlepixelwatch/answer/13044412Read 5 October 2026Install Google Play Store apps: press crown and tap Play Store to install.

Yes6Maker product pageoneplus.com/global/oneplus-watch-3Read 8 October 2026Google Play store supports downloading applications. Wear OS applications are restricted in RTOS Power Saver mode.

Voice assistants

Google Gemini5Press releaseblog.google/products-and-platforms/devices/pixel/pixel-watch-4Read 5 October 2026

Google Assistant2Owner's manualmanuals.plus/m/1d67b974739804b0af768b59851b1d7b7454726774db7bbc8ee939a02edfcf62_optim.pdfRead 8 October 2026Buttons and Touch, printed page 2, names Google Assistant as the default crown-hold action. Smart mode, Google account, supported region/language and internet through phone/Wi-Fi are required. No RTOS Power Saver or unverified Gemini availability is promised.10Reviewthe-gadgeteer.com/2025/03/16/oneplus-watch-3-review-a-solid-big-smartwatch-with-battery-for-literal-daysRead 8 October 2026Exact original model review actually uses Google Assistant by crown hold. Its erroneous iOS OHealth claim and partial daily charging observations are not imported. Current maker manual and Google support retain region/account/connectivity conditions.

Chipset

Qualcomm Snapdragon W5 Gen 21Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Qualcomm Snapdragon W51Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026Main processor Snapdragon W5. Its process is distinct from the BES2800 MCU process.

Process

Not available

4nm5Spec databasephonearena.com/phones/OnePlus-Watch-3_id12649Read 8 October 2026Hardware > Snapdragon W5 Gen1 (4 nm), main application SoC. The maker 6 nm figure describes the separate BES2800 MCU and is not substituted here.

CPU cores

Not available

45Spec databasephonearena.com/phones/OnePlus-Watch-3_id12649Read 8 October 2026

CPU configuration

AGoogle Pixel Watch 4

Not available

BOnePlus Watch 3

Count	Core	Max clock (GHz)
4	Cortex-A53	1.7

Source5Spec databasephonearena.com/phones/OnePlus-Watch-3_id12649Read 8 October 2026Hardware explicitly gives quad-core 1.7 GHz Cortex-A53.

Max CPU clock

Not available

1.7GHz=CalculatedFrom CPU configuration

GPU

Not available

Adreno 7025Spec databasephonearena.com/phones/OnePlus-Watch-3_id12649Read 8 October 2026

Low-power coprocessor

Cortex-M551Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

BES2800BP1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026Chip table explicitly names MCU BES2800BP. RTOS handles background/low-power tasks.

Memory

0 of 2 differ

RAMiKeep published GB values as stated. Convert a source explicitly labelled MB using 1000 MB per GB and preserve its original figure and unit in the note. Do not assume MB means MiB. Convert explicit MiB or GiB to decimal GB through their byte definitions, recording the conversion in the note. This normalization does not establish an exact physical byte count.

2GB1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

2GB4Reviewandroidcentral.com/wearables/oneplus-watch-3-reviewRead 8 October 2026Original large-model review spec table gives 2 GB RAM and 32 GB storage.

StorageiTotal built-in storage the maker states, in decimal GB. Space available to the user is lower and goes in the source note. A figure the maker gives only as available space is not stored.

32GB1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

32GB1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

Health sensors

2 of 8 differ

Heart rate sensor

Multi-path optical heart rate sensor1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

8-channel optical heart rate sensor2Owner's manualmanuals.plus/m/1d67b974739804b0af768b59851b1d7b7454726774db7bbc8ee939a02edfcf62_optim.pdfRead 8 October 2026Performance Parameters, printed page 6: 8-channel optical heart-rate sensor, with a separate 16-channel optical pulse-oximeter sensor.

ECG capabilityiElectrical heart sensing hardware with an ECG capability. The ECG app can require an eligible country, age and paired phone.

Yes1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 20262Maker spec sheet (PDF)cdn.uc.assets.prezly.com/080a6836-6d23-4f4b-b0ad-82bb50dbfb5a/-/inline/no/Pixel%20Watch%204%20-%20enUS%20-%20Tech%20Specs.pdfRead 5 October 2026Footnote 11 for both sizes: ECG app available only in select countries and not intended for people under 22 years old. Hardware support does not remove country or age eligibility.

Yes1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026UK table explicitly lists ECG hardware and ECG Analyzer. App availability depends on country, phone, age and current software. This is not a claim of worldwide ECG-app availability.

Blood oxygen sensingiBlood-oxygen sensing capability. App availability and medical status vary by market.

Yes1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 20262Maker spec sheet (PDF)cdn.uc.assets.prezly.com/080a6836-6d23-4f4b-b0ad-82bb50dbfb5a/-/inline/no/Pixel%20Watch%204%20-%20enUS%20-%20Tech%20Specs.pdfRead 5 October 2026Footnote 10 for both sizes: blood oxygen measurements are not available in all countries and are intended for general fitness/wellness, not diagnosis or other medical use.

Yes1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

Skin temperature sensingiA sensor or supported function that measures skin temperature. It is not a core-body thermometer.

Yes1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Yes1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

Blood pressure featureiPublished blood-pressure feature category. Hypertension notifications are not numerical blood-pressure readings.

Not available

Not available

Body composition sensor

Not available

Not available

Skin conductance (EDA)

Yes1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026Electrical cEDA skin-conductance sensor is explicitly listed, distinct from ECG sensing.

Not available

Medical clearancesiNamed regulatory clearances and their jurisdiction. General water resistance or an ECG sensor does not establish medical clearance.

Not available

Not available

Motion and environment sensors

0 of 9 differ

Accelerometer

Yes1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Yes1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

Accelerometer range

Not available

Not available

Gyroscope

Yes1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Yes1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

Barometric altimeter

Yes1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Yes1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

Compass

Yes1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Yes1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

Ambient light sensor

Yes1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Yes1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

Depth gauge

Not available

Not available

Depth gauge rangeiPublished measurement range of the depth gauge, distinct from maximum diving depth and water-pressure resistance.

Not available

Not available

Water temperature sensor

Not available

Not available

Health and fitness

2 of 5 differ

Health featuresiSupported health functions with country, phone and subscription restrictions in the source notes. Upcoming functions are not counted as available.

Heart rate alerts, ECG app, Blood oxygen app, Sleep tracking, Sleep stages, Stress tracking, Readiness score, Cycle tracking2Maker spec sheet (PDF)cdn.uc.assets.prezly.com/080a6836-6d23-4f4b-b0ad-82bb50dbfb5a/-/inline/no/Pixel%20Watch%204%20-%20enUS%20-%20Tech%20Specs.pdfRead 5 October 2026ECG and blood oxygen app flags inherit the exact country and ECG 22+ age conditions in footnotes 10/11. Other wellness feature conditions remain in their source notes.7Measurementfrandroid.com/marques/google/2816313_test-de-la-google-pixel-watch-4-une-montre-qui-mise-a-fond-la-formeRead 5 October 2026Sport et sante explicitly describes ECG, SpO2, cycle tracking, stress and Daily Readiness. These are not new clinical-clearance claims.

Continuous heart rate, Heart rate alerts, ECG app, Blood oxygen app, Heart rate variability, Sleep tracking, Stress tracking1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026Current maker health list: heart rate and high/low alerts, SpO2 spot/all-day checks, sleep quality/snoring-risk assessment, Mind and Body with HRV/stress and ECG Analyzer in eligible regions. Snoring-risk assessment is not sleep-apnea clearance.6Maker product pageoneplus.com/global/oneplus-watch-3Read 8 October 2026Published continuous heart rate and HRV/stress functions. Current UK ECG is independently specified. US ECG app availability is excluded.

Fitness featuresiSupported workout functions. A sport-profile name alone does not prove advanced metrics such as running power or running dynamics. Trackback follows the recorded route back to the start. A compass arrow that points straight to the start does not count.

Automatic workout detection, Training load5Press releaseblog.google/products-and-platforms/devices/pixel/pixel-watch-4Read 5 October 2026Personalized automatic tracking explicitly detects/classifies workouts. Cardio and Target Load explicitly named. No exact sport count stored from 50+ claim.

VO2 max, Running dynamics, Running power, Turn-by-turn navigation1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026Professional Running explicitly names cadence, stride length, ground contact time/balance, vertical movement and running power. VO2 max and Google Maps turn directions are published on the linked product page. An over 100 claim is not an exact profile count.6Maker product pageoneplus.com/global/oneplus-watch-3Read 8 October 2026Running VO2max and ground contact data plus Google Maps turn directions. No direct running/sport profile count is inferred from 100+.

Sport profilesiPublished count of distinct sport/activity profiles. A claim such as 180+ is not an exact integer count.

Not available

Not available

Dive modesiActual supported dive modes. Water resistance or a depth app alone does not establish decompression-capable scuba support.

Not available

Not available

External sensorsiTypes of external workout sensors the watch can pair with. GPS reception, phone data and built-in sensors do not qualify.

Not available

Not available

Safety

2 of 6 differ

Fall detectioniAutomatic fall detection. Incident detection restricted to recorded workouts is not counted as general fall detection.

Yes12Owner's manualsupport.google.com/googlepixelwatch/answer/12663810Read 5 October 2026Fall Detection and Emergency SOS sections. Eligible regions, permissions and paired-phone/LTE conditions apply.

Not available

Car crash detection

Not available

Not available

Emergency SOSiA manual emergency alert to emergency services or preset contacts. Source notes identify the recipient, paired-phone requirement and country limits. Satellite is listed separately.

Yes12Owner's manualsupport.google.com/googlepixelwatch/answer/12663810Read 5 October 2026Fall Detection and Emergency SOS sections. Eligible regions, permissions and paired-phone/LTE conditions apply.

Not available

Emergency sireniPublished or measured siren sound level in decibels. Audible distance alone does not establish this value. Measurement distance belongs in source notes.

Not available

Not available

Live location sharingiShares live location during supported use. A paired phone or data subscription may be required.

Not available

Not available

Dedicated LED flashlightiA dedicated hardware LED flashlight. Lighting the display white is not counted.

Not available

Not available

Positioning

2 of 3 differ

PositioningiPublished satellite systems and signal bands. Do not infer bands from dual-frequency support alone.

GPS, Galileo, GLONASS1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026Stores the three systems explicitly common to US and rest-of-world maker rows. Extra BeiDou/QZSS support is regional and cannot vary, so not inherited by US configurations.

GPS (L1 + L5), BeiDou, Galileo, GLONASS, QZSS1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026Connectivity names GPS dual-band L1+L5 and BeiDou/Galileo/GLONASS/QZSS. Signal bands for the other constellations are not invented.

Dual-band GNSSiMaker-stated dual-frequency satellite reception. Supported constellations and signal bands are listed separately.

Yes1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Yes1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

Offline mapsiMap data stored on the watch and usable without live phone data. GPX routes or breadcrumb tracks alone are not offline maps.

Yes9Owner's manualsupport.google.com/googlepixelwatch/answer/15395290Read 5 October 2026Download Google Maps areas to watch for use without a phone or network.

Not available

Connectivity

7 of 15 differ

BluetoothiPublished Bluetooth support for this model. The version is recorded separately. Unknown version does not mean the radio is absent.

Yes1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026Maker specification explicitly publishes Bluetooth 6.0. This proves Bluetooth support without deriving a different version or borrowing another model.

Not available

Bluetooth version

6.01Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

5.21Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

Wi-FiiPublished Wi-Fi support for this model. The standard and bands are recorded separately. Unknown standard does not mean Wi-Fi is absent.

Yes1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026Maker specification explicitly publishes this model's Wi-Fi support and standard/bands. Support is recorded separately from version details. All listed case and radio editions support Wi-Fi.

Not available

Wi-Fi standard

Wi-Fi 61Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Wi-Fi 45Spec databasephonearena.com/phones/OnePlus-Watch-3_id12649Read 8 October 2026Connectivity explicitly lists 802.11 a/b/g/n. No Wi-Fi 5 inference from the 5 GHz band.

Wi-Fi bands

2.4 GHz, 5 GHz1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

2.4 GHz, 5 GHz1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

CellulariTrue when a cellular edition is sold. A variant row states whether that individual model has cellular hardware.

Yes1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

No4Reviewandroidcentral.com/wearables/oneplus-watch-3-reviewRead 8 October 2026Reviewer explicitly states no LTE option for either original colour. Not derived solely from omitted radio entries.

Network

Not available

Not available

4G bandsiPublished LTE bands for the stated regional cellular model. Do not transfer bands to another region or Wi-Fi-only model.

Not available

Not available

5G bandsiPublished 5G NR bands for the stated regional cellular model. RedCap support does not establish conventional full-bandwidth phone 5G.

Not available

Not available

NFCiSome regions sell an NFC edition, so it is per variant.

Yes1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Yes1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

Contactless payments

Yes13Owner's manualsupport.google.com/googlepixelwatch/answer/12661007Read 5 October 2026Contactless payments section explicitly uses Google Wallet. Supported cards and countries required.

Yes1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

Payment services

Google Wallet13Owner's manualsupport.google.com/googlepixelwatch/answer/12661007Read 5 October 2026Contactless payments section explicitly uses Google Wallet. Supported cards and countries required.

Google Wallet1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026Google Wallet country, bank/card and account requirements apply.

Ultra-wideband

Yes1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Not available

Satellite

Emergency SOS16Owner's manualsupport.google.com/googlepixelwatch/answer/16407554Read 5 October 2026Base list holds emergency SOS of the LTE models. The Wi-Fi model rows hold none. Satellite SOS requires supported country, clear outdoor sky, updated software and service activation. Every variant has an explicit correct option.

Not available

ANT+

Not available

Not available

Audio

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Speaker

Yes1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Yes4Reviewandroidcentral.com/wearables/oneplus-watch-3-reviewRead 8 October 2026

Microphones

Not available

Not available

Calls on the watchiVoice-call capability of the marketed model, including sold cellular editions. Variant radio capability and paired-phone requirements still apply.

Cellular or phone11Owner's manualsupport.google.com/googlepixelwatch/answer/12674814Read 5 October 2026Phone calls supported through paired phone or LTE edition cellular plan. Wi-Fi edition requires nearby phone for ordinary voice calls.

Phone only4Reviewandroidcentral.com/wearables/oneplus-watch-3-reviewRead 8 October 2026Bluetooth calling through a paired phone. The exact original model has no cellular edition.

Music on the watchiPlays audio stored on the watch. Remote control of phone playback or streaming alone does not qualify.

Yes10Owner's manualsupport.google.com/googlepixelwatch/answer/12662429Read 5 October 2026Play and download music explicitly supports downloading tracks for offline listening.

Not available

Controls

2 of 5 differ

ButtonsiPhysical controls used to operate the watch, excluding the rotating crown and strap-release buttons. A clickable rotating crown is counted only in Crown.

11Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

12Owner's manualmanuals.plus/m/1d67b974739804b0af768b59851b1d7b7454726774db7bbc8ee939a02edfcf62_optim.pdfRead 8 October 2026Product Overview/Buttons and Touch, printed pages 1-2: Crown plus Lower button. The clickable rotating crown is not counted as an ordinary button.

Named operating buttonsiNames of operating buttons, excluding the crown and strap-release controls.

Side button1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Lower button2Owner's manualmanuals.plus/m/1d67b974739804b0af768b59851b1d7b7454726774db7bbc8ee939a02edfcf62_optim.pdfRead 8 October 2026Exact manual operating-control name, excluding Crown and strap-release controls.

CrowniA crown that rotates to control the interface. A round push button that does not rotate is not a crown.

Rotating haptic1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Rotating haptic4Reviewandroidcentral.com/wearables/oneplus-watch-3-reviewRead 8 October 2026Reviewer describes physical rotation with Pixel-like scroll haptic feedback. Lower push button remains separate.

Rotating bezeliPhysical rotation or touch gestures around the display edge. A fixed decorative bezel is None.

Not available

Not available

Gestures

Double pinch, Wrist turn15Owner's manualsupport.google.com/googlepixelwatch/answer/16788035Read 5 October 2026Current guide explicitly covers Pixel Watch 4 Double pinch and Wrist turn. Requires current software.

Not available

Battery and charging

7 of 13 differ

Battery capacityiPublished battery capacity for the stated case size. Rated and typical capacity are distinguished in source notes.

325mAh1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026Pixel Watch 4 Power table. Typical 325 mAh or 455 mAh. Regulatory rated 321/450 mAh is distinct.

631mAh2Owner's manualmanuals.plus/m/1d67b974739804b0af768b59851b1d7b7454726774db7bbc8ee939a02edfcf62_optim.pdfRead 8 October 2026Performance Parameters gives 648 mAh typical and 631 mAh rated. The stored figure is rated, matching the maker launch release. Typical capacity is not substituted without a separate field.

Claimed battery lifeiMaker endurance claims with distinct operating modes and case sizes. With solar describes augmentation of that estimate, not hardware capability. Use false for ordinary claims without solar augmentation, true for explicitly solar-aided claims, and omit it when solar qualification is unclear. Source notes state AOD, GNSS, music and solar conditions. Do not create a normal-use row from an AOD-only claim. Low power denotes the maker battery-saver mode. Keep its typical, light-use and always-on claims separate from standard-mode claims. GPS power saving identifies an intermediate reduced-accuracy GNSS saving preset. Source notes retain the maker's preset name and published conditions. Max battery GPS is the distinct maximum-saving claim. When the maker has only one GPS saving preset, it is GPS power saving.

AGoogle Pixel Watch 4

Mode	With solar	Hours (h)
Always-on	No	30
Low power	No	48

Source1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026Pixel Watch 4 table explicitly uses always-on display: 30 h 41 mm, 40 h 45 mm. Battery Saver 48/72 h. No generic normal-use smartwatch row is invented. Footnote 7 describes 2025 California preproduction testing and median user workload.

BOnePlus Watch 3

Mode	With solar	Hours (h)
Smartwatch	No	120
Heavy use	No	72
Low power	No	384

Source1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026Up to claims: Smart mode 120 h uses official face, AOD off and Dual-Engine architecture, daily 30 min GPS running/5 min calls/15 min Bluetooth-headphone Spotify/6.5 h sleep. Heavy Smart mode 72 h uses third-party face, Dual-Engine off and AOD on, daily 30 min running/30 min music/15 min Google Maps/5 min calls/6.5 h sleep. Low-power RTOS mode 384 h retains notifications, calls and sleep tracking but limits Wear OS apps. No AOD-only or continuous-GPS row is inferred from the heavy mixed workload.6Maker product pageoneplus.com/global/oneplus-watch-3Read 8 October 2026Up to claims: Smart mode 120 h uses official face, AOD off and Dual-Engine architecture, daily 30 min GPS running/5 min calls/15 min Bluetooth-headphone Spotify/6.5 h sleep. Heavy Smart mode 72 h uses third-party face, Dual-Engine off and AOD on, daily 30 min running/30 min music/15 min Google Maps/5 min calls/6.5 h sleep. Low-power RTOS mode 384 h retains notifications, calls and sleep tracking but limits Wear OS apps. No AOD-only or continuous-GPS row is inferred from the heavy mixed workload.

Smartwatch mode (claimed)iMaker normal-use smartwatch claim without solar. A watch with only an explicit AOD-mode claim has no value here. Workloads differ and source notes must be read.

Not available

120h=CalculatedFrom Claimed battery life

AOD battery life (up to)iMaker claimed smartwatch endurance with the always-on display enabled and without solar, for the base case. Source notes preserve workload and case conditions. This is a claim, not a measured test or an AOD-off estimate.

30h=CalculatedFrom Claimed battery life

Not available

GPS mode (claimed)iMaker regular GPS/GNSS activity claim without solar, for the base case. AOD, multi-band, music and power-saving conditions have separate rows when published.

Not available

Not available

Solar chargingiPublished solar charging hardware capability. An ordinary battery estimate without solar augmentation does not prove that the watch lacks solar charging hardware.

Not available

Not available

Charging methodiThe connection at the watch, not the cable end at the USB adapter. A proprietary inductive puck is not Qi unless interoperability is explicitly established.

Magnetic pins1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Magnetic pins2Owner's manualmanuals.plus/m/1d67b974739804b0af768b59851b1d7b7454726774db7bbc8ee939a02edfcf62_optim.pdfRead 8 October 2026Charging, printed page 3, fits metal watch charging connectors against charging-base contacts. Conductive pins, not an inferred Qi/inductive puck.9Press articleandroidcentral.com/accessories/oneplus-launches-a-little-cable-upgrade-you-didnt-know-your-charger-was-missingRead 8 October 2026Exact compatible OnePlus Watch 3 charging accessory explicitly uses an integrated magnetic pogo-pin connector. This corroborates the supplied-base metal-contact mechanism. Accessory power ratings are not transferred to watch maximum accepted power.

Charging guidanceiPublished charging requirements, nominal estimates and compatibility guidance. Keep adapter ratings separate from power accepted by the watch.

Not available

Not available

Max charging power (watch)iPublished maximum charging power at the watch. Adapter rating or charger input power does not prove the power accepted by the watch.

Not available

Not available

Fast chargingiAn explicit fast-charging capability claim. A short charging time or high adapter wattage alone does not qualify.

Yes1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 20265Press releaseblog.google/products-and-platforms/devices/pixel/pixel-watch-4Read 5 October 2026

Yes2Owner's manualmanuals.plus/m/1d67b974739804b0af768b59851b1d7b7454726774db7bbc8ee939a02edfcf62_optim.pdfRead 8 October 2026VOOC flash charge is explicit. Uses supplied charging base/cable, battery temperature 20-40 C and a qualifying adapter rated 5 V/2 A or higher.

Quick charge claimiMaker claim for usage from a short charge. Source notes identify the usage workload, such as normal use or sleep tracking.

Not available

Charge time10 minUse time24 h3Press releaseoneplus.com/us/press/press-release/oneplus-unveils-its-latest-flagship-smartwatch-oneplus-watch-3Read 8 October 2026Maker claims a full day of Smart-mode use from 10-minute charge. Includes the published battery workload, not arbitrary screen/GPS-on time. Flash charging also requires the qualifying base, adapter and battery temperature from the manual.

Charge 0 to 80% (claimed)iMaker claim for charging an empty battery to 80%. Charger and approximate qualifiers belong in source notes.

25min1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026Pixel Watch 4 Power table. About 25 min 41 mm, 30 min 45 mm. In-box dock and 30 W wall adapter, fully drained device powered on.

Not available

Full charge time (claimed)iMaker advertised nominal full-charge duration. Approximate or theoretical maker estimates are allowed, with their conditions in source notes. Partial-charge intervals do not qualify. Measured 0 to 100% tests have a separate field.

45min1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026About 45 min 41 mm, 60 min 45 mm. Adapter power is not watch maximum input power.

Not available

Measured

3 of 4 differ

Peak brightness (measured)iReviewer measurement. Source notes state screen area, mode and ambient light. A small-area peak claim cannot be replaced with a full-screen measurement.

Not available

Not available

Battery life (measured)iReviewer-observed mixed-use endurance. Source notes state case size, AOD, workout use and whether it was a complete discharge. Extrapolation from partial discharge is excluded.

Not available

96h4Reviewandroidcentral.com/wearables/oneplus-watch-3-reviewRead 8 October 2026Original Obsidian Titanium review sample: reviewer regularly observed a full 4 days with AOD on, nightly sleep tracking and 1 hour tracked exercise/day. 96 h is exact conversion of the published 4 days. Firmware, exercise GNSS share and brightness are unstated. This is mixed-use observation, not standardized continuous GPS. Projected 6-7 day daytime/AOD-off claims and unspecified-start charging observations are omitted.

Battery tests (measured)iReviewer-observed endurance, with case size and test settings in source notes. Partial-discharge projections are not stored as measured endurance.

AGoogle Pixel Watch 4

Test	Hours (h)
Other	50

Source7Measurementfrandroid.com/marques/google/2816313_test-de-la-google-pixel-watch-4-une-montre-qui-mise-a-fond-la-formeRead 5 October 2026Actual 45 mm review unit. 50 h with daytime AOD, bedtime mode overnight, automatic stress detection and three hours outdoor GPS running. Mixed display settings use other rather than unconditional AOD. Radio and firmware not stated. Not a 41 mm measurement.

BOnePlus Watch 3

Test	Hours (h)
Mixed use, always-on	96

Source4Reviewandroidcentral.com/wearables/oneplus-watch-3-reviewRead 8 October 2026Same 96 h AOD-on observational cycle as the scalar, original large Obsidian sample with nightly sleep and 1 h exercise/day. No 43 mm measurement is imported.

Full charge time (measured)iReviewer measurement from empty to full, not 0-80% or a charge from 5%. Source notes name the charger and case size.

46min7Measurementfrandroid.com/marques/google/2816313_test-de-la-google-pixel-watch-4-une-montre-qui-mise-a-fond-la-formeRead 5 October 2026Same 45 mm unit, observed 0-100% in 46 minutes. Charging adapter and firmware unstated. This is separate from manufacturer 60-minute 45 mm claim.

Not available

Strap

5 of 6 differ

Lug widthiDistance between standard strap attachment lugs, not the decorative width of a proprietary strap. Unknown for custom connectors unless the maker publishes lug width.

Not available

22mm1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026Published standard 22 mm watchband compatibility describes conventional strap attachment, not a decorative proprietary connector width.6Maker product pageoneplus.com/global/oneplus-watch-3Read 8 October 2026Published standard 22 mm watchband compatibility describes conventional strap attachment, not a decorative proprietary connector width.

Quick-release strapiThe supplied strap can be detached through its quick-release mechanism. Compatibility with quick-release replacement straps alone does not qualify.

Yes14Owner's manualsupport.google.com/googlepixelwatch/answer/15330690Read 5 October 2026Attach and detach bands with the release button and slide mechanism. No tools.

Yes2Owner's manualmanuals.plus/m/1d67b974739804b0af768b59851b1d7b7454726774db7bbc8ee939a02edfcf62_optim.pdfRead 8 October 2026Product Overview labels Strap Release and Attachment controls for the supplied conventional strap.10Reviewthe-gadgeteer.com/2025/03/16/oneplus-watch-3-review-a-solid-big-smartwatch-with-battery-for-literal-daysRead 8 October 2026Design and features identifies actual supplied strap quick-release buttons on the original large review sample. Not merely replacement-band compatibility.

Strap systemiPublished attachment system and compatible case sizes. Proprietary connectors are distinguished from standard spring bars.

Not available

Standard 22 mm watchbands1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026Linked maker product page explicitly supports all standard 22 mm watchbands.6Maker product pageoneplus.com/global/oneplus-watch-3Read 8 October 2026Linked maker product page explicitly supports all standard 22 mm watchbands.

Strap materialiMaterial of the supplied strap for the stated package. Do not substitute material from another band sold separately.

Fluoroelastomer1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026Pixel Watch 4 Active Band uses fluoroelastomer, not Pixel Watch 5 HNBR.

Not available

Strap

Active Band1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Not available

Strap sizesiPublished wrist-circumference range for the stated strap or case. Source notes distinguish an overall compatible wrist range from one supplied strap size.

AGoogle Pixel Watch 4

Size	Wrist (min) (mm)	Wrist (max) (mm)
Small	130	175
Large	165	210

Source1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026Exact Active Band Small/Large wrist ranges differ by case size.

BOnePlus Watch 3

Wrist (min) (mm)	Wrist (max) (mm)
140	210

Source1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

Regulatory

1 of 3 differ

FCC ID

Not available

Not available

SAR limb (US)iPublished limb/wrist SAR for the stated base regional model under the US regime. Other case sizes or radio versions can differ. Head or body SAR is excluded.

Not available

Not available

SAR limb (EU)iPublished limb/wrist SAR for the stated base regional model under the EU regime. Other case sizes or radio versions can differ. Head or body SAR is excluded.

Not available

0.312W/kg2Owner's manualmanuals.plus/m/1d67b974739804b0af768b59851b1d7b7454726774db7bbc8ee939a02edfcf62_optim.pdfRead 8 October 2026English CE SAR section, printed page 5: limb 0.312 W/kg in direct contact with the watch back. Face 0.150 W/kg is excluded.

Other certifications

Not available

Not available

In the box

1 of 2 differ

In the box

Google Pixel Watch 4, Active Band (small and large wristbands), USB-C Quick Charge Dock, Quick Start Guide1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026

Watch body, Charging base, Strap, Safety Guide, Quick Start Guide, USB-C charging cable1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

Power adapter in boxiA mains/USB power adapter is supplied. A charging cable, inductive puck or charging dock alone does not count.

No1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 8 October 2026Accessory charger table explicitly says power adapter not included. Dock and cable are included.

No1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026Complete box list supplies charging base and cable but no mains/USB power adapter.

Links

Not compared

Product page

store.google.com/us/product/pixel_watch_4_specs3Maker product pagestore.google.com/us/product/pixel_watch_4_specsRead 5 October 2026

www.oneplus.com/uk/oneplus-watch-31Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

Spec sheet

cdn.uc.assets.prezly.com/080a6836-6d23-4f4b-b0ad-82bb50dbfb5a/-/inline/no/Pixel%20Watch%204%20-%20enUS%20-%20Tech%20Specs.pdf2Maker spec sheet (PDF)cdn.uc.assets.prezly.com/080a6836-6d23-4f4b-b0ad-82bb50dbfb5a/-/inline/no/Pixel%20Watch%204%20-%20enUS%20-%20Tech%20Specs.pdfRead 5 October 2026

www.oneplus.com/uk/oneplus-watch-3/specs1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026

Manual

support.google.com/product-documentation/answer/163238354Owner's manualsupport.google.com/product-documentation/answer/16323835Read 5 October 2026

manuals.plus/m/1d67b974739804b0af768b59851b1d7b7454726774db7bbc8ee939a02edfcf62_optim.pdf2Owner's manualmanuals.plus/m/1d67b974739804b0af768b59851b1d7b7454726774db7bbc8ee939a02edfcf62_optim.pdfRead 8 October 2026Maker Quick Start Guide for OPWWE251, hosted in a public document mirror. The official manual portal was checked but returned only a script shell.

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 smartwatches.