Google Pixel Watch 3 vs WHOOP 4.0 Sensor
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At a glance
Key specifications and important differences. Full details follow below.
| Feature |  Google Pixel Watch 3 |  WHOOP 4.0 Sensor |
|---|---|---|
| Price | Price range: KSh 37,500.00 through KSh 47,500.00 | KSh 36,000.00 |
| Display | Custom AMOLED LTPO Actua display with DCI-P3 color | — |
| Battery capacity | 41 mm: 307 mAh typical; 45 mm: 420 mAh typical | Internal rechargeable battery; capacity not published |
| Water resistance | 5 ATM rated | IP68; water-resistant up to 10 m for 2 hours; swimming and showering supported, not diving |
| Processor | Qualcomm Snapdragon W5 Gen 1 with Cortex M33 co-processor | — |
| RAM | 2 GB | — |
| Storage | 32 GB | — |
| Operating system | Wear OS 5.0 at launch | — |
| Network / cellular | 4G LTE and UMTS on cellular models; carrier support required | — |
| Positioning / GNSS | GPS, GLONASS, Galileo, BeiDou and QZSS | — |
| Health & wellness features | Fitbit heart rate, blood oxygen, ECG-compatible, stress, readiness and wellness features; availability varies and not intended for diagnosis | Continuous heart rate, HRV, respiratory rate, skin-temperature variation, strain and recovery tracking; not a medical device |
Full specifications
2 of 4 products
| Specification | Google Pixel Watch 3 | WHOOP 4.0 Sensor |
|---|---|---|
| Identity & design | ||
| Brand | WHOOP | |
| Model | Google Pixel Watch 3 | WHOOP 4.0 sensor |
| Announced | August 2024 | — |
| Dimensions | 41 mm or 45 mm round case; approximately 12.3 mm high | Exact dimensions not published in current WHOOP support documentation |
| Weight | Approximately 31 g (41 mm) or 37 g (45 mm), band excluded | Exact weight not published in current WHOOP support documentation |
| Build materials | Recycled aluminum case and custom 3D Corning Gorilla Glass 5 | Screen-free continuous-wear sensor housing |
| Wrist size | Band fit varies by included small/large configuration | — |
| Strap / band | Fluoroelastomer Active Band with soft-touch coating; colors vary by configuration | — |
| Controls / buttons | Rotating haptic crown, side button, and touchscreen | — |
| Display | ||
| Display | Custom AMOLED LTPO Actua display with DCI-P3 color | — |
| Screen resolution | Approximately 320 ppi | — |
| Display protection | Custom 3D Corning Gorilla Glass 5 | — |
| Display features | Always-on display; up to 2,000 nits peak brightness; adaptive 1–60 Hz refresh rate | — |
| Performance & software | ||
| Processor | Qualcomm Snapdragon W5 Gen 1 with Cortex M33 co-processor | — |
| RAM | 2 GB | — |
| Storage | 32 GB | — |
| Operating system | Wear OS 5.0 at launch | — |
| Connectivity | ||
| Network / cellular | 4G LTE and UMTS on cellular models; carrier support required | — |
| SIM / eSIM | eSIM on cellular models; carrier compatibility required | — |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, 2.4 GHz and 5 GHz | — |
| Bluetooth | Bluetooth 5.3 | — |
| NFC | Built-in NFC; Google Wallet availability varies by country and bank | — |
| Positioning / GNSS | GPS, GLONASS, Galileo, BeiDou and QZSS | — |
| Audio & communication | ||
| Speaker | Built-in speaker | — |
| Microphone | Built-in microphone | — |
| Calling | Bluetooth or LTE calling depending on model and carrier | — |
| Sensors, health & fitness | ||
| Sensors | Compass, altimeter, red/infrared SpO2 sensors, ECG-compatible electrical sensor, multipath optical heart-rate sensor, 3-axis accelerometer, gyroscope, ambient-light sensor, cEDA sensor, skin-temperature sensor, barometer, magnetometer and ultra-wideband sensor | Photoplethysmography sensors and skin-temperature sensing |
| Health & wellness features | Fitbit heart rate, blood oxygen, ECG-compatible, stress, readiness and wellness features; availability varies and not intended for diagnosis | Continuous heart rate, HRV, respiratory rate, skin-temperature variation, strain and recovery tracking; not a medical device |
| Sleep tracking | Fitbit sleep stages, sleep score and overnight wellness tracking | Automatic sleep detection, sleep duration, stages, sleep need and sleep performance |
| Sports / workout modes | More than 40 exercise modes with running insights | Automatic and manual activity tracking |
| Training & outdoor features | Cardio load, target load, readiness, running form and GPS route tracking | — |
| Safety & emergency features | Emergency SOS, fall detection, Safety Check and loss-of-pulse detection where available; phone, carrier and regional requirements apply | — |
| Battery & durability | ||
| Battery capacity | 41 mm: 307 mAh typical; 45 mm: 420 mAh typical | Internal rechargeable battery; capacity not published |
| Battery life | Up to 24 hours with always-on display; up to 36 hours with Battery Saver | Approximately 5 days |
| Charging | USB-C fast-charging cable with magnetic pins | WHOOP 4.0 slide-on wireless Battery Pack for on-wrist charging |
| Water resistance | 5 ATM rated | IP68; water-resistant up to 10 m for 2 hours; swimming and showering supported, not diving |
| Durability / certifications | IP68-rated dust and water resistance | — |
| Compatibility | ||
| Phone compatibility | Most Android 10.0 or later phones; Android Go not supported; Google Account, Pixel Watch app and internet required | Compatible iPhone or Android phone; current support recommends iOS 18+ or Android 10+ |
| Companion app | Google Pixel Watch app and Fitbit services | WHOOP app |
| Colors | Case and Active Band colors vary by size and market | — |
| Additional specifications | ||
| Charging time | — | Approximately 150 minutes for the sensor; around 2 hours for the Battery Pack |
| Movement sensors | — | Accelerometer |
| Bluetooth and Wi-Fi | — | Bluetooth 4.2 or higher |
| Packing list | — | WHOOP 4.0 sensor, compatible band and WHOOP 4.0 Battery Pack |
| Smart recognition | — | Automatically recognizes 45 activity types |
| Energy, load and readiness features | — | Recovery, Strain and Sleep scores with personalized coaching |
| strap material | — | SuperKnit performance band |
| armband | — | WHOOP 4.0 band; not compatible with WHOOP 5.0 or MG |
| heart rate broadcast | — | Real-time heart-rate broadcast supported |
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