Amazfit T-Rex 3 Smart Watch Onyx Black Stainless Steel
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The Amazfit T-Rex 3 in Onyx Black is a rugged outdoor smartwatch featuring a 1.5" AMOLED display, stainless steel bezel, free offline maps and up to 27 days of battery life with up to 180 hours of continuous GPS tracking.
This listing is the Onyx Black. The T-Rex 3 is also available in Haze Grey and Lava Red.
Key specifications
- Display: 1.5" AMOLED, 480 x 480, 322 PPI
- Battery life: Up to 27 days typical, 13 days heavy use, 40 days battery saver
- GPS battery life: 42 hours accuracy mode, up to 180 hours max battery life mode
- Water resistance: 10 ATM, certified for freediving to 45 metres
- Build: Stainless steel bezel, polymer middle frame
- Positioning: Dual-band, 6 satellite positioning systems
- Weight: 68.3g (without strap)
- Strap: 22mm liquid silicone, fits 145–210mm wrists
- Software: Zepp OS 4, Android 7.0 and above, iOS 14.0 and above
Amazfit T-Rex 3 – Onyx Black
Built with a military-grade body and a large, bright AMOLED display, the T-Rex 3 is designed to handle tough conditions without compromise.
Large & Bright AMOLED Display – Maps and workout data are easy to read, even in direct sunlight.
27 Days of Battery Life – Stay out longer, with up to 180 hours of continuous outdoor GPS activity tracking.
Advanced Maps and Navigation – Free offline maps, turn-by-turn directions and precise navigation keep you on track wherever you go.
Conquer Your Workouts – Personalised AI coaching and customisable strength training routines help you train smarter.
Voice and AI Control – Control your watch by voice and send speech-to-text message replies.
Enhanced Privacy – Choose whether GPS data is stored, and enable or disable GPS permissions as needed.
Explore the full range in Amazfit T-Rex.
Specification
| Colour | Onyx |
|---|---|
| Dimensions | 48.5mm × 48.5mm × 13.75mm |
| Weight | 68.3g (without strap) |
| Body material | Stainless Steel bezel, polymer middle frame |
| Buttons | 4 |
| Water-resistance Grade | 10 ATM |
| Display | Material AMOLED |
| Size | 1.5” |
| Resolution | 480x480 |
| PPI | 322 |
| Touchscreen | Gorilla Glass |
| Strap Materials | Liquid Silicone |
| Width | 22mm |
| Min. & Max. Wrist Dimensions | 145mm-210mm |
| Buckle | Classic pin buckle |
| Battery | Capacity 700 mAh (rated value) |
| Charging Method | Magnetic charging base |
| Theoretical Charging Duration | Within 3 hours |
| Typical Usage | 27 days |
| Battery | Saver Mode 40 days |
| Heavy Usage | 13 days |
| Clock Mode | 81 days |
| Accuracy GPS Mode | 42 hours |
| Power Saving GPS Mode | 72 hours |
| GPS | Long Battery Life Mode 114 hours |
| GPS | Max Battery Life 180 hours |
| Ultra-low Temperature (GPS On) | 28 hours |
| Ultra-low Temperature (GPS off) | 32 days |
| Health Sensors | BioTracker™ 6.0 PPG biometric sensor (support blood-oxygen) |
| Movement Sensors | Acceleration sensor, Gyroscope sensor, Geomagnetic sensor, Air pressure sensor, Ambient light sensor, Temperature sensor |
| Connection | WLAN 2.4GHz. Bluetooth 5.2, BLE |
| Positioning | Dual band & 6 satellite positioning systems |
| Supported Devices | Android 7.0 and above, iOS 14.0 and above |
| Operating System | Zepp OS 4 |
| Application | Zepp App |
| Diving Certification | EN13319, ISO 6425, GB/T 18828 certification for freediving to 45 meters |
What's Included
- Smartwatch (including Standard Strap)
- Magnetic Charging Base (no cable)
- Instruction Manual
Amazfit
About the Amazfit 146-W2323GL1N
From our tech experts at CEN
A rugged military-grade smartwatch in onyx black, supplied by CEN.
Who it suits
Outdoor users who want a large, bright display and a tough body without stepping up to the Pro. The Onyx Black T-Rex 3 suits everyday adventurers and those new to the rugged range.
Our tech experts advise
The standard T-Rex 3 keeps the big AMOLED screen and military-grade durability at a lower price than the Pro. Check the Specification tab for battery and water resistance; Lava Red and Haze Grey are the alternative finishes.
Explore the full Amazfit range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Amazfit
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Frequently Asked Questions
Q: Does the Amazfit T-Rex 3 work in the cold?
A: Yes. In ultra-low temperatures it is rated for up to 28 hours with GPS on and up to 32 days with GPS off.
Q: Can I control the T-Rex 3 by voice?
A: Yes. You can fully control the watch with your voice and send speech-to-text message replies.
Q: Can I dive with the Amazfit T-Rex 3?
A: It is rated 10 ATM and holds EN13319, ISO 6425 and GB/T 18828 certification for freediving to 45 metres.
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