AmazFit T-Rex Ultra vs Amazfit T-Rex 3
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. |
|---|
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 |  Amazfit T-Rex 3 |
|---|---|---|
| Price | Original price was: KSh 50,000.00.KSh 47,000.00Current price is: KSh 47,000.00. | KSh 33,000.00 |
| Display | 1.39-inch AMOLED | 1.5-inch AMOLED touchscreen |
| Battery capacity | 500 mAh rated | 700 mAh rated |
| Water resistance | 10 ATM; ISO 22810:2010 | 10 ATM; suitable for swimming and supported high-speed water sports subject to manufacturer guidance |
| Storage | Up to 2.3 GB available for music | — |
| Operating system | Zepp OS 3.5 | — |
| Positioning / GNSS | Built-in dual-band L1/L5 positioning; six satellite systems | Dual-band, six-satellite positioning |
| Health & wellness features | 24-hour heart-rate, blood-oxygen and stress monitoring; one-tap measurement; PAI; breathing exercises; health alerts | Heart rate, blood oxygen, stress, PAI and temperature insights; wellness measurements are not intended for medical diagnosis |
Full specifications
2 of 4 products
| Specification | AmazFit T-Rex Ultra | Amazfit T-Rex 3 |
|---|---|---|
| Identity & design | ||
| Brand | Amazfit | Amazfit |
| Model | Amazfit T-Rex Ultra | T-Rex 3 |
| Dimensions | 47.3 × 47.3 × 13.45 mm, excluding heart-rate sensor base | 48.5 × 48.5 × 13.75 mm (heart-rate sensor base excluded) |
| Weight | 89 g without strap | 68.3 g without strap |
| Build materials | 316L stainless-steel bezel, back panel, bridge and buttons; polymer-alloy middle frame | Stainless-steel bezel, polymer middle frame and Gorilla Glass touchscreen |
| Wrist size | 140–205 mm | 145–210 mm |
| Strap / band | 22 mm silicone strap with classic pin buckle | 22 mm liquid-silicone strap with classic pin buckle |
| Controls / buttons | Four physical buttons; glass touchscreen | Four physical buttons and touchscreen |
| Display | ||
| Display | 1.39-inch AMOLED | 1.5-inch AMOLED touchscreen |
| Screen resolution | 454 × 454 pixels, 326 ppi | 480 × 480 pixels, 322 ppi |
| Display protection | Glass | Gorilla Glass |
| Display features | Up to 1,000 nits; Always-On Display; 120+ watch faces | Up to 2,000 nits peak brightness; always-on display and more than 400 watch faces |
| Performance & software | ||
| Storage | Up to 2.3 GB available for music | — |
| Operating system | Zepp OS 3.5 | — |
| Connectivity | ||
| Wi-Fi | 2.4 GHz Wi-Fi | 2.4 GHz Wi-Fi |
| Bluetooth | Bluetooth 5.0 BLE | Bluetooth 5.2 BLE |
| Positioning / GNSS | Built-in dual-band L1/L5 positioning; six satellite systems | Dual-band, six-satellite positioning |
| Audio & communication | ||
| Speaker | No built-in speaker; audio through connected Bluetooth headphones | — |
| Microphone | — | Built-in microphone |
| Calling | — | Zepp Flow voice control and speech-to-text replies when paired with a supported phone |
| Sensors, health & fitness | ||
| Sensors | BioTracker PPG biometric sensor with SpO₂; accelerometer; gyroscope; geomagnetic sensor; barometric altimeter; ambient-light sensor | BioTracker 6.0 PPG biometric sensor with blood-oxygen support, accelerometer, gyroscope, geomagnetic sensor, barometric altimeter, ambient-light sensor and temperature sensor |
| Health & wellness features | 24-hour heart-rate, blood-oxygen and stress monitoring; one-tap measurement; PAI; breathing exercises; health alerts | Heart rate, blood oxygen, stress, PAI and temperature insights; wellness measurements are not intended for medical diagnosis |
| Sleep tracking | Sleep stages including REM; naps; sleep schedule; breathing quality; sleep score | Sleep stages, naps, sleep score, breathing quality and recovery insights |
| Sports / workout modes | 162 sports modes; smart recognition of 25 strength movements and 8 sports movements; freediving workouts | More than 170 sports modes |
| 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 | Offline maps and navigation, GPS privacy controls, Zepp Coach and advanced running/outdoor metrics |
| Safety & emergency features | Storm warnings; altitude blood-oxygen reminders; abnormal heart-rate, low-SpO₂ and high-stress alerts | — |
| Diving / depth features | Outdoor and indoor freediving and spearfishing; depth and water-temperature data; rated to 30 m; EN13319 and ISO 6425 diving certifications | Freediving support to 45 m under applicable certification |
| Battery & durability | ||
| Battery capacity | 500 mAh rated | 700 mAh rated |
| 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 | Up to 27 days typical use, 40 days battery saver, 13 days heavy use, 42 hours accurate GPS or 180 hours maximum GPS |
| Charging | Magnetic charging base; approximately 2 hours | Magnetic charging base; approximately 3 hours; USB-C cable is not included |
| Water resistance | 10 ATM; ISO 22810:2010 | 10 ATM; suitable for swimming and supported high-speed water sports subject to manufacturer guidance |
| Durability / certifications | Mud-resistant design; ultra-low-temperature mode down to −30 °C; SGS-certified 10 ATM testing; EN13319 and ISO 6425 diving certifications | EN 13319, ISO 6425 and GB/T 18828 certification for freediving to 45 m; operating range includes -30°C to 70°C |
| Compatibility | ||
| Phone compatibility | Android 7.0 or later; iOS 12.0 or later | Android 7.0 or later; iOS 14.0 or later |
| Companion app | Zepp App | Zepp app |
| Colors | Abyss Black; Sahara | Onyx, Lava or Haze Gray |
Related comparisons
Apple Watch Series 8AmazFit T-Rex UltraApple Watch Series 9AmazFit T-Rex UltraAmazFit FalconAmazFit T-Rex UltraAmazFit T-Rex UltraSamsung Galaxy Watch UltraAmazFit T-Rex Ultra
Apple Watch Series 10AmazFit T-Rex Ultra
Amazfit T-Rex 3 ProAmazFit T-Rex Ultra
Samsung Galaxy Watch Ultra 2025AmazFit T-Rex Ultra
Google Pixel Watch 4AmazFit T-Rex Ultra
WHOOP Peak 5.0 SensorAmazFit T-Rex Ultra
WHOOP Life