Amazfit T-Rex 3 Pro
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At a glance
Key specifications and important differences. Full details follow below.
| Feature |  Amazfit T-Rex 3 Pro |
|---|---|
| Price | KSh 55,000 – KSh 65,000 |
| Display | AMOLED 48 mm: 1.5-inch 44 mm: 1.32-inch |
| Battery capacity | 48 mm: 700 mAh rated 44 mm: 500 mAh rated |
| Water resistance | 10 ATM |
| Operating system | Zepp OS 5 |
| Positioning / GNSS | Built-in six-satellite positioning with circularly polarized GPS antenna |
| Health & wellness features | Heart rate, blood oxygen, stress, HRV, readiness and temperature insights; wellness measurements are not intended for medical diagnosis |
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Full specifications
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Identity & design
| Specification | Amazfit T-Rex 3 Pro |
|---|---|
| Brand | Amazfit |
| Model | T-Rex 3 Pro |
| Dimensions | 48 mm: 48 × 48 × 14 mm 44 mm: 44.8 × 44.8 × 13.2 mm Heart-rate sensor base excluded |
| Weight | 48 mm: 52 g 44 mm: 46.8 g Without strap |
| Build materials | Fiber-reinforced polymer case with Grade 5 titanium bezel and buttons; sapphire-glass touchscreen |
| Wrist size | 48 mm: 145–210 mm 44 mm: 140–205 mm |
| Strap / band | Silicone quick-release strap 48 mm: 22 mm 44 mm: 20 mm |
| Controls / buttons | Four physical buttons and touchscreen |
Display
| Specification | Amazfit T-Rex 3 Pro |
|---|---|
| Display | AMOLED 48 mm: 1.5-inch 44 mm: 1.32-inch |
| Screen resolution | 48 mm: 480 × 480 pixels, 322 ppi 44 mm: 466 × 466 pixels, 353 ppi |
| Display protection | Sapphire glass |
| Display features | Up to 3,000 nits peak brightness; always-on display |
Performance & software
| Specification | Amazfit T-Rex 3 Pro |
|---|---|
| Operating system | Zepp OS 5 |
Connectivity
| Specification | Amazfit T-Rex 3 Pro |
|---|---|
| Wi-Fi | 2.4 GHz Wi-Fi |
| Bluetooth | Bluetooth 5.2 BLE |
| Positioning / GNSS | Built-in six-satellite positioning with circularly polarized GPS antenna |
Audio & communication
| Specification | Amazfit T-Rex 3 Pro |
|---|---|
| Speaker | Built-in speaker |
| Microphone | Built-in microphone |
| Calling | Bluetooth calling when paired with a compatible phone |
Sensors, health & fitness
| Specification | Amazfit T-Rex 3 Pro |
|---|---|
| Sensors | BioTracker 6.0 PPG biometric sensor (5PD + 2LED), accelerometer, gyroscope, geomagnetic sensor, barometric altimeter, ambient-light sensor and temperature sensor |
| Health & wellness features | Heart rate, blood oxygen, stress, HRV, readiness and temperature insights; wellness measurements are not intended for medical diagnosis |
| Sleep tracking | Sleep stages, naps, sleep score, breathing quality and recovery insights |
| Sports / workout modes | 187 sports modes with smart recognition for strength-training and sports movements |
| Training & outdoor features | Offline base, contour and ski maps; turn-by-turn navigation, POI search, route planning, round-trip routing, auto-rerouting, Zepp Coach and PeakBeats training metrics |
| Safety & emergency features | SOS tools and downloadable maps; requires appropriate setup and phone connectivity for supported communications |
| Diving / depth features | Freediving and scuba modes rated to 45 m; follow the manufacturer’s diving limits and safety guidance |
Battery & durability
| Specification | Amazfit T-Rex 3 Pro |
|---|---|
| Battery capacity | 48 mm: 700 mAh rated 44 mm: 500 mAh rated |
| Battery life | 48 mm: up to 25 days typical, 10 days heavy, 38 hours accurate GPS 44 mm: up to 17 days typical, 8 days heavy, 26 hours accurate GPS |
| Charging | Magnetic charging base |
| Water resistance | 10 ATM |
| Durability / certifications | Rugged outdoor construction with Grade 5 titanium controls and sapphire glass |
Compatibility
| Specification | Amazfit T-Rex 3 Pro |
|---|---|
| Phone compatibility | Android 7.0 or later; iOS 15.0 or later |
| Companion app | Zepp app |
| Colors | Black Gold (44mm), Black Gold (48mm); Gold/Grey, Tactical Black |