Smartwatches / Compare
Google Pixel Watch 2 vs OnePlus Watch 3
Product A: Google
100 of 150 known
Change Google Pixel Watch 2
Product B: OnePlus
87 of 150 known
Change OnePlus Watch 3
Compare the Google Pixel Watch 2 with
70 of 141 fields differ
- 35 different values
- 35 known for one only
- 36 the same
- 35 missing for both
Biggest differences
Each bar uses the scale of all 101 smartwatches.
- Peak brightnessA: 1,000nitsB: 2,200nitsOnePlus is 1,200 nits higher.
Weight
0 to 80 g
Weight (case only)
A31g
B49.7g
All 150 fields
Every value links to where we found it.

General
7 of 10 differ
Series
Model numbers
G4TSL, GC3G8, GD2WG3Owner's manualsupport.google.com/product-documentation/answer/13844710Read 13 October 2026The guide names GC3G8 and G4TSL for the EU and UK, and GD2WG for the US.13Spec databaseifixit.com/Device/Google_Pixel_Watch_2Read 13 October 2026G4TSL, GC3G8 and GD2WG are printed in the band groove on the frame.
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
Announced
Status
Not available
Not available
Predecessor
Not available
Not available
Successor
Google Pixel Watch 36Press releaseblog.google/products/pixel/google-pixel-watch-3Read 13 October 2026Pixel Watch 3 was announced in August 2024 as the next Pixel Watch.17Reviewnotebookcheck.net/Google-Pixel-Watch-3-released-with-new-45-mm-size-and-two-years-of-free-cellular-data-in-the-US.875694.0.htmlRead 23 October 2026Notebookcheck describes the Pixel Watch 3 as a successor to last year's Pixel Watch 2.18Reviewgsmarena.com/google_pixel_watch_3_is_live_with_uwb_and_bluetooth_le_audio_support-news-64101.phpRead 23 October 2026GSMArena's launch report measures the Pixel Watch 3 against last year's Pixel Watch 2 and calls it the predecessor.
Launch price (US)
Not available
Launch price (EU)
Not available
Markets
Not available
Colours
Matte Black Aluminum Case / Obsidian Active Band, Polished Silver Aluminum Case / Bay Active Band, Polished Silver Aluminum Case / Porcelain Active Band, Champagne Gold Aluminum Case / Hazel Active Band1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 13 October 2026Four colorways as printed. Not all colours are sold in all regions.
Segment
OS updates promised
Not available
Not available
Security updates until
Not available
Case
7 of 8 differ
Case size
Not available
Case shape
Case material
Case material (as published)
100% recycled aluminum1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 13 October 2026
Black stainless steel case with black titanium bezel1Maker product pageoneplus.com/uk/oneplus-watch-3/specsRead 8 October 2026
Back
Not available
Case dimensions
Height41Width41Thickness12.3mm(1.6 × 1.6 × 0.5 in)1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 13 October 2026Sheet lists Diameter 41 mm and Height 12.3 mm. Diameter is stored as height and width, height as thickness.
Weight (case only)
Weight with strap
Not available
Durability
2 of 8 differ
Water resistance
Water resistance standard
Dust and water rating
Dive rating
Not available
Not available
Max dive depth
Not available
Not available
MIL-STD-810
Not available
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 temperature
Display
8 of 14 differ
Display type
Display type (as published)
Screen size
1.2in(3 cm)10Spec databasem.gsmarena.com/google_pixel_watch_2_arrives_with_new_chipset_improved_battery_life_and_uwb_connectivity-news-60106.phpRead 13 October 2026Launch article: circular 1.2 inch OLED. Google does not publish a diagonal, so this is a rounded database value.11Reviewt3n.de/news/google-pixel-watch-2-test-1584711Read 13 October 2026Spec table: 1.2 inch OLED.
Resolution
384 × 384px10Spec databasem.gsmarena.com/google_pixel_watch_2_arrives_with_new_chipset_improved_battery_life_and_uwb_connectivity-news-60106.phpRead 13 October 2026Launch article: 384 x 384 px. The GSMArena spec page, O2 and Vodafone list 450 x 450, which does not fit 320 ppi on a 1.2 inch display.11Reviewt3n.de/news/google-pixel-watch-2-test-1584711Read 13 October 2026Spec table: 384 x 384 px at 320 ppi. Notebookcheck reports the same from the Google Play Console listing.
Pixel density
Not available
Display area
Not available
Not available
Touchscreen
Max refresh rate
Not available
Not available
Min refresh rate
Not available
Not available
Peak brightness
Minimum brightness
Not available
Not available
Always-on display
Display cover
Display cover (as published)
Custom 3D Corning Gorilla Glass 51Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 13 October 2026Custom 3D Corning Gorilla Glass 5.
Platform
5 of 15 differ
Platform
OS at launch
Software
Not available
Not available
Latest OS
Not available
Not available
Works with
Phone requirement
Most Android 9.0 or newer. Requires a Google Account and the Google Pixel Watch app. Not compatible with Android (Go edition).1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 13 October 2026Sheet: most Android 9.0 or newer. Requires Google Account and Google Pixel Watch app. Footnote 5: not compatible with Android (Go edition).
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
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.
Chipset
Process
CPU cores
CPU configuration
AGoogle Pixel Watch 2
| Count | Core | Max clock (GHz) |
|---|---|---|
| 4 | Cortex-A53 | 1.7 |
BOnePlus Watch 3
| Count | Core | Max clock (GHz) |
|---|---|---|
| 4 | Cortex-A53 | 1.7 |
Max CPU clock
1.7GHz
1.7GHz
GPU
Low-power coprocessor
Memory
0 of 2 differ
RAM
Health sensors
2 of 8 differ
Heart rate sensor
Multi-path optical heart rate sensor1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 13 October 2026
ECG capability
Blood oxygen sensing
Skin temperature sensing
Blood pressure feature
Not available
Not available
Body composition sensor
Not available
Not available
Skin conductance (EDA)
Not available
Medical clearances
Not available
Not available
Motion and environment sensors
0 of 9 differ
Accelerometer
Accelerometer range
Not available
Not available
Gyroscope
Barometric altimeter
Compass
Ambient light sensor
Depth gauge
Not available
Not available
Depth gauge range
Not available
Not available
Water temperature sensor
Not available
Not available
Health and fitness
3 of 5 differ
Health features
Irregular rhythm notifications, ECG app, Blood oxygen app, Heart rate variability, Sleep tracking, Sleep stages, Stress tracking, Readiness score1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 13 October 2026Sensor list supports the ECG app and blood oxygen monitoring. Both are subject to country limits in footnotes 10 and 11.2Press releaseblog.google/products/pixel/google-pixel-watch-2Read 13 October 2026Body Response uses a cEDA sensor with heart rate, heart rate variability and skin temperature to flag possible stress. Sleep Score, Sleep Profile and Daily Readiness Score are named. Daily Readiness Score and Sleep Profile are tools of Fitbit Premium, which is a paid subscription after a six-month offer with the watch.5Maker product pagesupport.google.com/product-documentation/answer/14811751Read 13 October 2026Pixel Watch 2 entry lists heart rate variability, SpO2 tracking, skin temperature, sleep stages and all-day Body Response tracking with cEDA. The entry does not list ECG or irregular rhythm.9Reviewdcrainmaker.com/2023/11/google-watch2-review.htmlRead 13 October 2026Review lists background irregular heart rhythm notifications as new, and shows sleep stages on the watch.
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 features
Automatic workout detection, VO2 max, Pool swim2Press releaseblog.google/products/pixel/google-pixel-watch-2Read 13 October 2026Automatic workout start and stop reminders are available for seven exercises, including running and outdoor cycling.5Maker product pagesupport.google.com/product-documentation/answer/14811751Read 13 October 2026Pixel Watch 2 entry lists cardio fitness (VO2 max) from on-device GPS, and swimming.9Reviewdcrainmaker.com/2023/11/google-watch2-review.htmlRead 13 October 2026Review lists automatic workout detection for seven new workout types. The Swim mode is indoor swimming only, with no open water swim.
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 profiles
Not available
Dive modes
Not available
Not available
External sensors
Not available
Not available
Safety
3 of 6 differ
Fall detection
Not available
Car crash detection
Not available
Emergency siren
Not available
Not available
Live location sharing
Not available
Not available
Dedicated LED flashlight
Not available
Not available
Positioning
2 of 3 differ
Positioning
Dual-band GNSS
Offline maps
Not available
Not available
Connectivity
7 of 15 differ
Bluetooth
Not available
Bluetooth version
Wi-Fi
Not available
Wi-Fi standard
Wi-Fi bands
Cellular
Network
Not available
4G bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 66, 713Owner's manualsupport.google.com/product-documentation/answer/13844710Read 13 October 2026GC3G8: the EU and UK band table lists UMTS Band I/VIII and LTE B1, B3, B7, B8, B20 and B28. The table covers the EU and UK only. The base list is the union with the GD2WG bands from the FCC filing coverage.14Press article9to5google.com/2023/08/12/pixel-watch-2-fccRead 13 October 2026GD2WG: LTE bands 2, 4, 5, 12, 13, 17, 25, 26, 66 and 71 as reported from the FCC filing. Droid Life reports the same FCC IDs. A carrier listing gives the same band list for the US model.
Not available
5G bands
Not available
Not available
NFC
Contactless payments
Payment services
Ultra-wideband
Not available
Not available
Satellite
Not available
Not available
ANT+
Not available
Not available
Audio
2 of 4 differ
Speaker
Microphones
Not available
Not available
Calls on the watch
Controls
1 of 5 differ
Buttons
Named operating buttons
Crown
Rotating bezel
Not available
Not available
Gestures
Not available
Not available
Battery and charging
9 of 13 differ
Battery capacity
Claimed battery life
AGoogle Pixel Watch 2
| Mode | With solar | Hours (h) |
|---|---|---|
| Always-on | No | 24 |
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)
Not available
120h
AOD battery life (up to)
24h
Not available
GPS mode (claimed)
Not available
Not available
Solar charging
Not available
Not available
Charging method
Magnetic pins1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 13 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 guidance
Charging times use the in-box USB-C Fast Charging Cable with a 30 W adapter that is sold separately. The charger needs a USB-C PD adapter of at least 5 W. The adapter is not included.1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 13 October 2026Sheet: USB-C Fast Charging Cable. Charger sheet: requires a USB-C PD compatible adapter, minimum 5 W, not included. Footnote 8: speeds are based on the in-box cable with a 30 W adapter sold separately.
Not available
Max charging power (watch)
Not available
Fast charging
Quick charge claim
Not available
Charge 0 to 80% (claimed)
Not available
Full charge time (claimed)
Not available
Measured
2 of 4 differ
Peak brightness (measured)
Not available
Not available
Battery tests (measured)
AGoogle Pixel Watch 2
Not availableFull charge time (measured)
Not available
Not available
Strap
6 of 6 differ
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 strap
Not available
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 system
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 material
Fluoroelastomer1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 13 October 2026
Not available
Strap
Active band1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 13 October 2026
Not available
Strap sizes
AGoogle Pixel Watch 2
| Size | Wrist (min) (mm) | Wrist (max) (mm) |
|---|---|---|
| Small | 130 | 175 |
| Large | 165 | 210 |
BOnePlus Watch 3
| Wrist (min) (mm) | Wrist (max) (mm) |
|---|---|
| 140 | 210 |
Regulatory
2 of 3 differ
FCC ID
A4RG4TSL, A4RGC3G8, A4RGD2WG3Owner's manualsupport.google.com/product-documentation/answer/13844710Read 13 October 2026The guide's FCC section names GD2WG (LTE Version) and G4TSL (Wi-Fi Version). The three FCC IDs come from the press coverage of the FCC filing.14Press article9to5google.com/2023/08/12/pixel-watch-2-fccRead 13 October 2026Table of the FCC filing: A4RG4TSL (G4TSL Bluetooth and Wi-Fi), A4RGC3G8 (GC3G8 cellular) and A4RGD2WG (GD2WG cellular).
Not available
SAR limb (US)
Not available
SAR limb (EU)
Other certifications
Not available
Not available
In the box
1 of 2 differ
In the box
Google Pixel Watch 2, Active band (small and large wristbands), USB-C Fast Charging Cable, Quick Start Guide1Maker product pagesupport.google.com/googlepixelwatch/answer/12651869Read 13 October 2026Sheet lists Pixel Watch 2, Active band (small and large), USB-C Fast Charging Cable and Quick Start Guide.
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 box
Links
Not compared
Product page
Spec sheet
Manual
Not available
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 number
Not available
Not available
Warranty
1 of 1 differ
Manufacturer warranty (source market)
Not available
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