Smartwatches / Compare

OnePlus Watch 3 vs OnePlus Watch 4

A

Product A: OnePlus

Watch 3

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B

Product B: OnePlus

Watch 4

85 of 150 known

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Every value links to where we found it.

Only differences

AOnePlus Watch 3

BOnePlus Watch 4

General

4 of 10 differ

Series

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

Watch2Maker product pageoneplus.com/global/oneplus-watch-4Read 20 October 2026OnePlus names the product OnePlus Watch 4, in the OnePlus Watch line.

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

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.

OPWWE2616Press articlegadgetsandwearables.com/2026/04/16/oneplus-watch-4Read 20 October 2026Leaked final retail box with the product name and model number OPWWE261, matching earlier certification listings. The importer data on the box names the UK, the EU and Poland. OnePlus does not list the model number on its own pages. The OnePlus UK PSTI page lists the Watch Lite as OPWWE262 and has no Watch 4 row.

GTIN / EAN

Not available

Not available

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

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

22 April 20263Spec databasegsmarena.com/oneplus_watch_4-14622.phpRead 20 October 2026Launch: announced 2026, April 22.4Press articlegadgetsandwearables.com/2026/04/22/oneplus-watch-4-buyRead 20 October 2026Gadgets & Wearables, 22 April 2026: the watch is official and already listed on the OnePlus website. No price was given.

Status

Not available

Available3Spec databasegsmarena.com/oneplus_watch_4-14622.phpRead 20 October 2026Launch: Available. Released 2026, April.

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

Not available

OnePlus Watch 310Reviewnotebookcheck.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.

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.

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.

Not available

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

Not available

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.

Not available

Not available

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

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.

Not available

ColoursiThe maker's own colour names

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.

Midnight Titanium, Evergreen Titanium1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Design and Material: Midnight Titanium with a Fluororubber strap and Evergreen Titanium with a Mix-Fluororubber strap.

Segment

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

Smartwatch2Maker product pageoneplus.com/global/oneplus-watch-4Read 20 October 2026The Overview presents a general smartwatch with sports and wellness modes. It has no outdoor, dive or sport-only positioning.

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.

Not available

47mm7Reviewsmartzone.de/oneplus-watch-4-im-testRead 20 October 2026Review: only the 47 mm variant is on sale. The maker prints 47.4 mm and does not name a marketed size.

Case shape

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

Round4Press articlegadgetsandwearables.com/2026/04/22/oneplus-watch-4-buyRead 20 October 2026The article describes a premium watch with a round screen.

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.

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

Titanium1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Design and Material, Case: Titanium alloy. The Overview calls it an all-titanium watch body.

Case material (as published)

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

Titanium alloy1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Design and Material, Case: Titanium alloy.

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

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

PA with fiberglass1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Design and Material, Bottom case: PA with fiberglass.

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

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.

Height47.4Width47.4Thickness11mm(1.9 × 1.9 × 0.4 in)1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Size and Weight, Dimensions: 47.4 x 47.4 x 11.0 mm. The page does not say whether the sensor area is included. The Overview text calls the 11 mm a diameter, which is the thickness.

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

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.

43g(1.5 oz)1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Size and Weight: main part about 43 g without 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.

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.

68g(2.4 oz)1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Size and Weight: the whole machine is about 68 g with wrist strap.

Durability

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

5ATM1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Durability: 5ATM, IP69, IP68.

Water resistance standard

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.

Not available

Dust and water rating

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

IP68, IP691Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Durability: 5ATM, IP69, IP68. Overview footnote 4: IP68 and IP69 under GB/T 4208-2017, tested at 1.5 m for 30 minutes and with high-temperature, high-pressure water jets. Not a rating for saltwater use or beach use.

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.

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

Yes1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Durability: Military-grade certification MIL-STD-810H. Overview footnote 3: tested and certified for 16 items.2Maker product pageoneplus.com/global/oneplus-watch-4Read 20 October 2026Overview: built to MIL-STD-810H military-grade standards.

MIL-STD-810 tests

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.

Altitude, High temperature, Low temperature, Temperature shock, Solar radiation, Rain, Damp heat, Salt spray, Sand and dust, Immersion, Vibration, Shock, Temperature-humidity-altitude, Fluid contamination, Acidic atmosphere, Freezing rain2Maker product pageoneplus.com/global/oneplus-watch-4Read 20 October 2026Overview disclaimer 3 lists 16 items: altitude, high temperature, low temperature, temperature shock, solar radiation, rain, damp heat, salt spray, sand dust, immersion, vibration, shock, temperature-humidity-altitude, fluid contamination, acidic atmosphere and freezing rain.

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

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.

Min0Max35°C1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Durability: the product can operate normally within an ambient temperature range of 0 to 35 degrees, at 5 to 95 percent relative humidity without condensation. Military test extremes and charging limits are separate.

Display

4 of 14 differ

Display type

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

LTPO OLED1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Display, Screen: LTPO OLED flexible display.

Display type (as published)

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

LTPO OLED flexible display1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 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.

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

1.5in(3.8 cm)3Spec databasegsmarena.com/oneplus_watch_4-14622.phpRead 20 October 2026Display, Size: 1.5 inches. This fits 466 pixels at 310 ppi.

Resolution

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

466 × 466px1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Display, Resolution: 466 x 466 pixels.

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

Not available

310ppi1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Display, PPI: 310 PPI. One reviewer prints 439 ppi, which does not fit 466 pixels on a 1.5 inch display.

Display area

Not available

Not available

Touchscreen

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

Yes2Maker product pageoneplus.com/global/oneplus-watch-4Read 20 October 2026Overview: wet-hand touch control.

Max refresh rateiHighest published display refresh rate in active operation.

Not available

Not available

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

Not available

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.

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

3,000nits1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Brightness: default maximum 600 nits typical, 1500 nits typical when activated in strong sunlight, and a peak of 3000 nits only in the official self-developed sports mode in strong sunlight. The stored 3000 nits is that conditional peak, not a full-screen or default figure.

Minimum brightness

Not available

Not available

Always-on display

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

Yes2Maker product pageoneplus.com/global/oneplus-watch-4Read 20 October 2026Disclaimers 5 and 6 treat AOD as a setting that is off in the 5 day smart mode figure.

Display cover

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

Sapphire1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Display, Cover glass: Sapphire Crystal.

Display cover (as published)

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

Sapphire Crystal1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026

Platform

9 of 15 differ

Platform

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

Wear OS1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Operating System: Android/Wear OS version Wear OS 6.0. One database says Wear OS 7.0, which the maker page does not.

OS at launch

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

Wear OS 6.01Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Operating System: Wear OS 6.0 with the OxygenOS Watch 8 watch version.

Software

Not available

OxygenOS Watch 81Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Operating System, Watch version: OxygenOS Watch 8.

Latest OS

Not available

Not available

Works with

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

Android2Maker product pageoneplus.com/global/oneplus-watch-4Read 20 October 2026Disclaimer 5: pairing with the OHealth app, Android 9.0 and above with GMS 23.45.23 and above. iOS and Android (Go edition) are not supported.

Phone requirement

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

Android 9.0 or later with Google Mobile Services 23.45.23 or later and the OHealth app. iOS and Android Go are not supported.2Maker product pageoneplus.com/global/oneplus-watch-4Read 20 October 2026Disclaimer 5, shortened.

App store

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.

Yes7Reviewsmartzone.de/oneplus-watch-4-im-testRead 20 October 2026Review: Wear OS gives access to the Google Play Store.9Reviewbasic-tutorials.com/reviews/mobile-device-reviews/oneplus-watch-4-reviewRead 20 October 2026Review: the Play Store with watch apps is available.

Voice assistants

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.

Gemini, Google Assistant1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Voice assistant: Gemini/Google Assistant.

Chipset

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.

Qualcomm Snapdragon W51Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Chip and Storage, Processor: Qualcomm Snapdragon W5 Processor and BES 2800. The Overview names a Dual-Engine Architecture.

Process

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.

4nm3Spec databasegsmarena.com/oneplus_watch_4-14622.phpRead 20 October 2026Platform, Chipset: Qualcomm Snapdragon W5 Gen 1 (4 nm). The BES2800 coprocessor is not this node.

CPU cores

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

Not available

CPU configuration

AOnePlus 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.

BOnePlus Watch 4

Not available

Max CPU clock

1.7GHz=CalculatedFrom CPU configuration

Not available

GPU

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

Not available

Low-power coprocessor

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

BES28001Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Chip and Storage: BES 2800 next to the Snapdragon W5. The Overview calls the pair a dual-engine architecture.

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.

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

2GB1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Chip and Storage, Storage: RAM 2GB.

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

32GB1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Chip and Storage, Storage: ROM 32GB. Total storage, user space is not stated.

Health sensors

1 of 8 differ

Heart rate sensor

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.

Optical heart rate sensor1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Sensor: optical heart rate sensor. The channel count is not stated.

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

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.

Yes2Maker product pageoneplus.com/global/oneplus-watch-4Read 20 October 2026Disclaimer 8: the activation time of the ECG function in the 60s Wellness Overview depends on the progress of local ECG function certification and registration. The sensor list on the Specs page names no separate electrical sensor.7Reviewsmartzone.de/oneplus-watch-4-im-testRead 20 October 2026Review: ECG is listed as a measurement and is enabled in Germany. The review sample was tested in Germany. Another review says the ECG is part of the 60 second check and is not an independent app.

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

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

Yes1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Sensor: optical blood oxygen sensor. Health and Workout: manual SpO2, all-day SpO2 tracking and low SpO2 indicators.

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

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

Yes1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Sensor: wrist temperature sensor. Health and Workout: wrist temperature monitoring supported.

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)

Not available

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

Yes1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026

Accelerometer range

Not available

Not available

Gyroscope

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

Yes1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026

Barometric altimeter

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

Yes1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Sensor: air pressure sensor.

Compass

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

Yes1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Sensor: geomagnetic sensor.

Ambient light sensor

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

Yes1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 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.

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.

Continuous heart rate, Heart rate alerts, Blood oxygen app, Sleep tracking, Stress tracking, Cycle tracking1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Health and Workout: heart rate monitoring with high and low alerts, resting heart rate, sleep quality assessment, manual and all-day SpO2 and Cycle Tracker. Stress tracking is from the review sources. The 60s Wellness Overview and the ECG function depend on local certification and are not stored as an ECG app.7Reviewsmartzone.de/oneplus-watch-4-im-testRead 20 October 2026Review lists pulse, SpO2, skin temperature, sleep, stress and altitude as measured values. ECG is enabled in Germany.

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.

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+.

Automatic workout detection, Recovery advice, Running dynamics, Running power, Pool swim1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Health and Workout: 6 types of automatic recognition (running, walk, cycling, swimming, rowing machine, elliptical machine), recovery time, indoor swimming as a professional mode, and running footnote 11 naming vertical ratio and running power data. Open water swimming is announced for a later OTA update and is not stored. Aerobic training effect and cardiopulmonary capacity are listed but are not stored as VO2 max.2Maker product pageoneplus.com/global/oneplus-watch-4Read 20 October 2026Disclaimer 10: professional sport mode for 11 sports including running, skiing, tennis, badminton, indoor swimming, jump rope, hiking, walking, cycling, elliptical and rowing. Disclaimer 11: running data such as vertical ratio and running power are not available in indoor runs, which means they exist for outdoor runs. A pacer function and lactate threshold monitoring are named as advanced running features.9Reviewbasic-tutorials.com/reviews/mobile-device-reviews/oneplus-watch-4-reviewRead 20 October 2026Review: the professional running mode gives step frequency, vertical oscillation, ground contact time and cadence. It also lists 11 professional sports modes and a pace assistant.

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

1 of 6 differ

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

Not available

Yes1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Health and Workout, Emergency Rescue: Fall Detection. The page does not say who is notified.

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.

Not available

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

0 of 3 differ

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

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.

GPS (L1 + L5), BeiDou, Galileo, GLONASS, QZSS1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026GNSS: Dual band L1+L5: Beidou, GPS, Galileo, GLONASS, QZSS. The band applies to the group as printed.

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

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

Yes1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026GNSS: Dual band L1+L5.

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

Not available

Not available

Connectivity

3 of 15 differ

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

Not available

Yes1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026

Bluetooth version

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

5.21Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Bluetooth: Bluetooth 5.2.

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

Not available

Yes1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026

Wi-Fi standard

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.

Not available

Wi-Fi bands

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

2.4 GHz, 5 GHz1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Wi-Fi: WLAN 2.4G/5G. The standard is not stated.

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

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.

No1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026eSIM: Unsupported. No LTE model is listed.

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

Yes1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026NFC: Supported.

Contactless payments

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

Yes1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026

Payment services

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

Google Wallet1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Mobile Payment: Google Wallet.

Ultra-wideband

Not available

Not available

Satellite

Not available

Not available

ANT+

Not available

Not available

Audio

2 of 4 differ

Speaker

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

Yes3Spec databasegsmarena.com/oneplus_watch_4-14622.phpRead 20 October 2026Sound, Loudspeaker: Yes. Smartwatch review sources confirm a speaker.

Microphones

Not available

18Reviewprofesionalreview.com/2026/06/01/oneplus-watch-4-review/ampRead 20 October 2026Review of the underside: a microphone on the right side and a speaker opening on the left side, with four charging contacts. The review names one microphone.

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

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

Phone only7Reviewsmartzone.de/oneplus-watch-4-im-testRead 20 October 2026Review: you can only make calls when the phone is nearby. There is no eSIM.

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

Not available

Yes7Reviewsmartzone.de/oneplus-watch-4-im-testRead 20 October 2026Review: music storage on the 32 GB and native offline playback with Spotify from the Play Store.

Controls

3 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.

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.

17Reviewsmartzone.de/oneplus-watch-4-im-testRead 20 October 2026Review: the rotating knob is not counted. One extra Workout button. The Spanish review describes an upper wheel and a lower flat button.8Reviewprofesionalreview.com/2026/06/01/oneplus-watch-4-review/ampRead 20 October 2026Review: two controls on the right side. An upper wheel and a lower flat button.

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

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

Workout button7Reviewsmartzone.de/oneplus-watch-4-im-testRead 20 October 2026Review: the additional Workout button. The Spanish review says the lower button opens the sport list.

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

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.

Rotating7Reviewsmartzone.de/oneplus-watch-4-im-testRead 20 October 2026Review: rotating and pressable knob plus an extra workout button. The Spanish review also describes a metal wheel that turns and presses. Haptic feedback is not stated.8Reviewprofesionalreview.com/2026/06/01/oneplus-watch-4-review/ampRead 20 October 2026Review: the upper right button is a metal wheel that turns and presses.

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

Not available

Not available

Gestures

Not available

Raise wrist to wake7Reviewsmartzone.de/oneplus-watch-4-im-testRead 20 October 2026Review: the display wakes when the wrist is turned.

Battery and charging

6 of 13 differ

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

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.

646mAh1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Battery Life, Battery capacity: 646 mAh typical and 632 mAh rated. The typical figure is stored because it is the number used in the maker's and reviewers' headline.

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.

AOnePlus 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.

BOnePlus Watch 4

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

Source1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Battery Life: 5 days in smart mode, 3 days for heavy use and 16 days in power saver mode. Days are stored as hours. Overview footnote 6 says the 5 days use the official watch face, AOD off, default health monitoring, 220 wrist raises, 130 messages, 20 minutes of screen use, 30 minutes of outdoor running and 15 minutes of music per day. Footnote 7 says the 16 days use all-day Bluetooth, 90 minutes of outdoor workouts a week, 180 wrist raises and 180 messages a day, and 6 hours of sleep detection.2Maker product pageoneplus.com/global/oneplus-watch-4Read 20 October 2026Overview: 5 days in smart mode and 16 days in power-saver mode. Disclaimer 6 gives the 5 day usage case with AOD off. Disclaimer 7 gives the 16 day usage case.

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.

120h=CalculatedFrom Claimed battery life

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.

Not available

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 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.

Not available

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

7.5W1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Battery Life, Max charging power: about 7.5 W. Stored as a maker figure for the watch.

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

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.

Not available

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

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.

Not available

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

Not available

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.

Not available

75min1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Battery Life, Max charging time: about 75 minutes. The page does not name the charger or the start level.

Measured

2 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.

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.

Not available

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

AOnePlus 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.

BOnePlus Watch 4

Not available

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.

Not available

Not available

Strap

2 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.

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.

22mm7Reviewsmartzone.de/oneplus-watch-4-im-testRead 20 October 2026Review: the supplied strap uses a standard 22 mm attachment, so it is easy to change.

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

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.

Not available

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

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.

Standard 22 mm watchbands7Reviewsmartzone.de/oneplus-watch-4-im-testRead 20 October 2026Review: standard 22 mm attachment.

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

Not available

Fluoroelastomer1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Design and Material, Strap: Fluororubber on Midnight Titanium and mixed fluororubber on Evergreen Titanium. Fluororubber is stored as fluoroelastomer.

Strap

Not available

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.

AOnePlus Watch 3

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

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

BOnePlus Watch 4

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

Source1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Design and Material, Wrist size: 140 mm-210 mm. This is the range of the supplied strap.

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.

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.

Not available

Other certifications

Not available

Not available

In the box

1 of 2 differ

In the box

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

Watch body, Charging base, Strap, USB-C charging cable, User Guide & Safety and Warranty Booklet1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026In The Box: watch body, charging base, strap, USB-C charging cable, user guide and safety and warranty booklet.

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

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.

No1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026In The Box lists a charging base and a USB-C charging cable and no power adapter.

Links

Not compared

Product page

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

www.oneplus.com/global/oneplus-watch-42Maker product pageoneplus.com/global/oneplus-watch-4Read 20 October 2026OnePlus Watch 4 overview page on the global site.

Spec sheet

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

www.oneplus.com/global/oneplus-watch-4/specs1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026OnePlus Watch 4 Specs page on the global site. The values sit in the page data, grouped as Design and Material, Size and Weight, Display, Brightness, Chip and Storage, Battery Life, Operating System and others.

Manual

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.

Not available

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.