AmazFit T-Rex Ultra vs Google Pixel Watch 4
Compare specifications, current prices and availability. Choose up to four products from the same family.
Selected Item  AmazFit T-Rex Ultra Original price was: KSh 50,000.00.KSh 47,000.00Current price is: KSh 47,000.00. |
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Add up to 2 more items to compare
Apple Watch Series 8 Price range: KSh 50,000.00 through KSh 53,000.00
Apple Watch Series 9 Price range: KSh 45,000.00 through KSh 49,500.00
AmazFit Falcon Original price was: KSh 70,000.00.KSh 63,000.00Current price is: KSh 63,000.00.
Samsung Galaxy Watch UltraKSh 45,000.00
At a glance
Key specifications and important differences. Full details follow below.
| Feature | AmazFit T-Rex Ultra |  Google Pixel Watch 4 |
|---|---|---|
| Price | Original price was: KSh 50,000.00.KSh 47,000.00Current price is: KSh 47,000.00. | Price range: KSh 44,500.00 through KSh 53,000.00 |
| Display | 1.39-inch AMOLED | Actua 360 AMOLED LTPO display with DCI-P3 colour, 320 ppi |
| Battery capacity | 500 mAh rated | 41 mm: 325 mAh typical; 45 mm: 455 mAh typical |
| Water resistance | 10 ATM; ISO 22810:2010 | 5 ATM |
| Processor | — | Qualcomm Snapdragon W5 Gen 2 with Cortex-M55 co-processor |
| RAM | — | 2 GB SDRAM |
| Storage | Up to 2.3 GB available for music | 32 GB eMMC flash |
| Operating system | Zepp OS 3.5 | Wear OS 6.0 |
| Network / cellular | — | 4G LTE and UMTS on LTE model |
| Positioning / GNSS | Built-in dual-band L1/L5 positioning; six satellite systems | Dual-frequency GPS with GPS, Galileo, GLONASS, BeiDou and QZSS |
| Health & wellness features | 24-hour heart-rate, blood-oxygen and stress monitoring; one-tap measurement; PAI; breathing exercises; health alerts | Continuous heart-rate monitoring; ECG and irregular-rhythm notifications where available; SpO₂; skin temperature; HRV; cEDA body-response and stress tracking; high/low heart-rate alerts |
Full specifications
2 of 4 products
| Specification | AmazFit T-Rex Ultra | Google Pixel Watch 4 |
|---|---|---|
| Identity & design | ||
| Brand | Amazfit | |
| Model | Amazfit T-Rex Ultra | Google Pixel Watch 4 |
| Dimensions | 47.3 × 47.3 × 13.45 mm, excluding heart-rate sensor base | 41 mm: 41 mm diameter × 12.3 mm high; 45 mm: 45 mm diameter × 12.3 mm high |
| Weight | 89 g without strap | 41 mm: 31.0 g without band; 45 mm: 36.7 g without band |
| Build materials | 316L stainless-steel bezel, back panel, bridge and buttons; polymer-alloy middle frame | 100% recycled aluminium housing |
| Wrist size | 140–205 mm | 41 mm — small: 130–175 mm, large: 165–210 mm; 45 mm — small: 150–185 mm, large: 165–215 mm |
| Strap / band | 22 mm silicone strap with classic pin buckle | Fluoroelastomer Active Band with soft-touch coating; small and large bands included |
| Controls / buttons | Four physical buttons; glass touchscreen | Haptic crown; side button; touchscreen; Gen 3 premium haptics |
| Display | ||
| Display | 1.39-inch AMOLED | Actua 360 AMOLED LTPO display with DCI-P3 colour, 320 ppi |
| Screen resolution | 454 × 454 pixels, 326 ppi | — |
| Display protection | Glass | Custom 3D Corning Gorilla Glass 5 |
| Display features | Up to 1,000 nits; Always-On Display; 120+ watch faces | 1–60 Hz responsive display; up to 3,000 nits peak; 1 nit minimum in AOD; Always-On Display |
| Performance & software | ||
| Processor | — | Qualcomm Snapdragon W5 Gen 2 with Cortex-M55 co-processor |
| CPU | — | Cortex-M55 co-processor |
| RAM | — | 2 GB SDRAM |
| Storage | Up to 2.3 GB available for music | 32 GB eMMC flash |
| Operating system | Zepp OS 3.5 | Wear OS 6.0 |
| Connectivity | ||
| Network / cellular | — | 4G LTE and UMTS on LTE model |
| SIM / eSIM | — | eSIM on LTE model |
| Wi-Fi | 2.4 GHz Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac/ax, 2.4 GHz and 5 GHz |
| Bluetooth | Bluetooth 5.0 BLE | Bluetooth 6.0 |
| NFC | — | Supported |
| Positioning / GNSS | Built-in dual-band L1/L5 positioning; six satellite systems | Dual-frequency GPS with GPS, Galileo, GLONASS, BeiDou and QZSS |
| Ultra Wideband (UWB) | — | Supported |
| Satellite features | — | Satellite SOS communication on supported LTE models and regions |
| Audio & communication | ||
| Speaker | No built-in speaker; audio through connected Bluetooth headphones | Built-in speaker |
| Microphone | — | Built-in microphone |
| Calling | — | Bluetooth calling; LTE model supports cellular and supported Satellite SOS emergency communication |
| Sensors, health & fitness | ||
| Sensors | BioTracker PPG biometric sensor with SpO₂; accelerometer; gyroscope; geomagnetic sensor; barometric altimeter; ambient-light sensor | Compass; altimeter; red and infrared SpO₂ sensors; multipurpose electrical sensors; multi-path optical heart-rate sensor; 3-axis accelerometer; gyroscope; ambient-light sensor; cEDA skin-conductance sensor; far-field skin-temperature sensor; barometer; magnetometer |
| Health & wellness features | 24-hour heart-rate, blood-oxygen and stress monitoring; one-tap measurement; PAI; breathing exercises; health alerts | Continuous heart-rate monitoring; ECG and irregular-rhythm notifications where available; SpO₂; skin temperature; HRV; cEDA body-response and stress tracking; high/low heart-rate alerts |
| Sleep tracking | Sleep stages including REM; naps; sleep schedule; breathing quality; sleep score | Light, deep and REM stages; Sleep Score; sleep log and readiness insights |
| Sports / workout modes | 162 sports modes; smart recognition of 25 strength movements and 8 sports movements; freediving workouts | Automatic activity detection and exercise tracking for running, weightlifting, tennis and other activities |
| Training & outdoor features | Offline maps and route navigation; Zepp Coach; PeakBeats; Track Run; trajectory correction; Virtual Pacer; training templates and intervals; external heart-rate belt and cycling power meter; altitude, sun, moon and tide tools | On-device GPS; custom run workouts; weekly mileage; advanced run metrics and form insights; cardio load, target cardio load, readiness and personalised coaching |
| Safety & emergency features | Storm warnings; altitude blood-oxygen reminders; abnormal heart-rate, low-SpO₂ and high-stress alerts | Loss of Pulse Detection where available; Car Crash Detection; Emergency SOS; Fall Detection; Safety Check; Emergency Sharing; Medical ID; Satellite SOS on supported LTE models/regions |
| Diving / depth features | Outdoor and indoor freediving and spearfishing; depth and water-temperature data; rated to 30 m; EN13319 and ISO 6425 diving certifications | — |
| Battery & durability | ||
| Battery capacity | 500 mAh rated | 41 mm: 325 mAh typical; 45 mm: 455 mAh typical |
| Battery life | Typical: up to 20 days; saver: 25 days; clock: 50 days; heavy: 9 days; accuracy GPS: 28 h; automatic GPS: 46 h; power-saving GPS: 58 h; endurance GPS: 80 h; low-temperature GPS: 10 h | 41 mm: up to 30 h with AOD, 48 h saver; 45 mm: up to 40 h with AOD, 72 h saver |
| Charging | Magnetic charging base; approximately 2 hours | Quick Charge Dock; 41 mm: about 15 min to 50%, 25 min to 80%, 45 min to 100%; 45 mm: about 15 min to 50%, 30 min to 80%, 60 min to 100% |
| Water resistance | 10 ATM; ISO 22810:2010 | 5 ATM |
| Durability / certifications | Mud-resistant design; ultra-low-temperature mode down to −30 °C; SGS-certified 10 ATM testing; EN13319 and ISO 6425 diving certifications | IP68 ingress protection; Corning Gorilla Glass 5 |
| Compatibility | ||
| Phone compatibility | Android 7.0 or later; iOS 12.0 or later | Most phones running Android 11.0 or newer; Google Account required |
| Companion app | Zepp App | Google Pixel Watch app; Google Health app |
| Colors | Abyss Black; Sahara | 41 mm: Polished Silver / Iris or Porcelain, Champagne Gold / Lemongrass, Matte Black / Obsidian; 45 mm: Satin Moonstone / Moonstone, Polished Silver / Porcelain, Matte Black / Obsidian |
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