AmazFit T-Rex Ultra vs Amazfit Balance 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 Balance 3 |
|---|---|---|
| Price | Original price was: KSh 50,000.00.KSh 47,000.00Current price is: KSh 47,000.00. | KSh 48,000.00 |
| Display | 1.39-inch AMOLED | 1.5-inch AMOLED |
| Battery capacity | 500 mAh rated | 658 mAh rated |
| Water resistance | 10 ATM; ISO 22810:2010 | 10 ATM |
| Storage | Up to 2.3 GB available for music | 64 GB |
| Operating system | Zepp OS 3.5 | Zepp OS 6 |
| Positioning / GNSS | Built-in dual-band L1/L5 positioning; six satellite systems | Built-in dual-band six-system positioning with circularly polarised antenna |
| Health & wellness features | 24-hour heart-rate, blood-oxygen and stress monitoring; one-tap measurement; PAI; breathing exercises; health alerts | 24-hour heart-rate, blood-oxygen, stress and skin-temperature monitoring; one-tap measurement; PAI; heart-rate recovery; menstrual-cycle tracking; HybridCharge and LifeLoad; breathing exercises and health alerts |
Full specifications
2 of 4 products
| Specification | AmazFit T-Rex Ultra | Amazfit Balance 3 |
|---|---|---|
| Identity & design | ||
| Brand | Amazfit | Amazfit |
| Model | Amazfit T-Rex Ultra | Amazfit Balance 3 |
| Dimensions | 47.3 × 47.3 × 13.45 mm, excluding heart-rate sensor base | Screen diameter: 44.8 × 44.8 mm; case diameter: 51.4 × 51.4 mm; thickness: 14.6 mm including heart-rate sensor, 12.5 mm excluding sensor |
| Weight | 89 g without strap | Stainless Steel: 62 g; Titanium Black: 55 g, without strap |
| Build materials | 316L stainless-steel bezel, back panel, bridge and buttons; polymer-alloy middle frame | Titanium model: Grade 5 titanium frame and case with stainless-steel buttons; stainless-steel model: stainless-steel frame and parts with fibre-reinforced polymer shell |
| Wrist size | 140–205 mm | 140–210 mm |
| Strap / band | 22 mm silicone strap with classic pin buckle | 22 mm silicone strap with classic pin buckle |
| Controls / buttons | Four physical buttons; glass touchscreen | Four physical buttons; touchscreen |
| Display | ||
| Display | 1.39-inch AMOLED | 1.5-inch AMOLED |
| Screen resolution | 454 × 454 pixels, 326 ppi | 480 × 480 pixels, 323 ppi |
| Display protection | Glass | Sapphire glass |
| Display features | Up to 1,000 nits; Always-On Display; 120+ watch faces | Up to 3,000 nits peak brightness; Always-On Display |
| Performance & software | ||
| Storage | Up to 2.3 GB available for music | 64 GB |
| Operating system | Zepp OS 3.5 | Zepp OS 6 |
| Connectivity | ||
| Wi-Fi | 2.4 GHz Wi-Fi | 2.4 GHz Wi-Fi |
| Bluetooth | Bluetooth 5.0 BLE | Bluetooth LE 5.2 |
| Positioning / GNSS | Built-in dual-band L1/L5 positioning; six satellite systems | Built-in dual-band six-system positioning with circularly polarised antenna |
| Audio & communication | ||
| Speaker | No built-in speaker; audio through connected Bluetooth headphones | Supported |
| Microphone | — | Supported |
| Calling | — | Bluetooth calling through a connected smartphone |
| 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 (5 photodiodes + 2 LEDs); accelerometer; gyroscope; ambient-light; geomagnetic; temperature; barometric altimeter |
| Health & wellness features | 24-hour heart-rate, blood-oxygen and stress monitoring; one-tap measurement; PAI; breathing exercises; health alerts | 24-hour heart-rate, blood-oxygen, stress and skin-temperature monitoring; one-tap measurement; PAI; heart-rate recovery; menstrual-cycle tracking; HybridCharge and LifeLoad; breathing exercises and health alerts |
| Sleep tracking | Sleep stages including REM; naps; sleep schedule; breathing quality; sleep score | Sleep HRV; stages including REM; daytime naps; sleep schedule; breathing quality; sleep score; RestoreIQ recovery insights |
| Sports / workout modes | 162 sports modes; smart recognition of 25 strength movements and 8 sports movements; freediving workouts | 180+ sports modes; automatic recognition of 25 strength-training movements and 8 sports movements; HYROX modes and recreational diving workouts |
| 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 | Built-in running workouts; Zepp Coach; lactate threshold; running power; ground-contact time; PeakBeats; offline maps; route planning; automatic rerouting; POI search; turn-by-turn navigation; golf; dual-band six-system GNSS; peripheral power, cadence and heart-rate sensors |
| Safety & emergency features | Storm warnings; altitude blood-oxygen reminders; abnormal heart-rate, low-SpO₂ and high-stress alerts | Red/white flashlight with SOS mode; abnormal high/low heart-rate, low-SpO2 and high-stress alerts; phone-call notifications |
| Diving / depth features | Outdoor and indoor freediving and spearfishing; depth and water-temperature data; rated to 30 m; EN13319 and ISO 6425 diving certifications | Outdoor and indoor freediving, recreational diving and spearfishing workout modes |
| Battery & durability | ||
| Battery capacity | 500 mAh rated | 658 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 | Typical use: up to 21 days; heavy use: 10 days; AOD: 7 days; accuracy GPS: 41 h; power-saving GPS: 84 h |
| Charging | Magnetic charging base; approximately 2 hours | Magnetic charging head |
| Water resistance | 10 ATM; ISO 22810:2010 | 10 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 | Military-grade low-pressure, high/low-temperature, temperature-shock, vibration and impact tests |
| Compatibility | ||
| Phone compatibility | Android 7.0 or later; iOS 12.0 or later | Android 8.0 or later; iOS 17.0 or later |
| Companion app | Zepp App | Zepp App |
| Colors | Abyss Black; Sahara | Stainless Steel; Titanium Black |
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