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The Amazfit T-Rex Ultra 2 in Black Magma is a rugged outdoor smartwatch built from Grade 5 titanium, featuring a 1.5" sapphire glass AMOLED display, full-colour preloaded base maps, a built-in two-colour flashlight, and up to 30 days of battery life.
Key specifications
- Display: 1.5" AMOLED, 480 x 480, sapphire glass
- Battery life: Up to 30 days typical, 15 days heavy use
- GPS battery life: 50 hours accuracy mode, 90 hours power saving mode, up to 177 hours max
- Water resistance: 10 ATM, certified for freediving to 45 metres
- Build: Grade 5 titanium bezel, back panel and buttons, fibre-reinforced polymer middle frame
- Positioning: Dual-band, 6 satellite positioning systems
- Weight: 89.2g (with strap)
- Strap: 26mm silicone, fits 145–215mm wrists
- Software: Zepp OS 5, Android 7.0 and above, iOS 15.0 and above
Amazfit T-Rex Ultra 2 – Black Magma
The T-Rex Ultra 2 is built for unpredictable conditions — harsh sunlight, darkness, underwater, mountain terrain, or back in the city. You don't need to change your watch.
Features
- Grade 5 Titanium Build: Resistant to unpredictable impact and wear
- Up to 30 Days of Battery Life: Suited to long journeys with no fixed end
- Full-Colour Preloaded Base Maps: Handles days that shift between mountains and cities
- 1.5" AMOLED Display: Clear and vibrant across unpredictable lighting conditions
- Built-In Two-Colour Flashlight: Ready for low-light situations and emergencies
- Dual Diving Certifications: Rated for unpredictable depths
Explore the full range in Amazfit T-Rex.
Specification
| Colour | Black Magma |
|---|---|
| Dimensions | 51 x 51 x 14.3mm |
| Weight | 89.2g (with strap) |
| Body material | Grade 5 titanium bezel, back panel & buttons; fiber-reinforced polymer middle frame |
| Buttons | 4 |
| Water-resistance Grade | 10 ATM |
| Display | Material AMOLED |
| Size | 1.5” |
| Resolution | 480x480 |
| PPI | 322 |
| Touchscreen | Sapphire Glass |
| Strap materials | Silicone |
| Width | 26mm |
| Min. & Max. Wrist Dimensions | 145mm-215mm |
| Buckle | Classic pin buckle |
| Battery | Capacity 870 mAh (rated value) |
| Charging Method | Magnetic charging base |
| Typical Usage | 30 days |
| Heavy Usage | 15 days |
| Accuracy GPS Mode | 50 hours |
| Power Saving GPS Mode | 90 hours |
| GPS | Max Battery Life 177 hours |
| Ultra-low Temperature (GPS On) | 40 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 15.0 and above |
| Operating System | Zepp OS 5 |
| 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-W2550GL2N
From our tech experts at CEN
A flagship rugged adventure smartwatch in black magma titanium, supplied by CEN.
Who it suits
Serious outdoor users — hikers, divers and expedition travellers — who need a watch built for uncertainty. The T-Rex Ultra 2 is the top of the rugged range, for those who want maximum durability and battery endurance.
Our tech experts advise
This is the flagship T-Rex; if you want similar toughness at a lower price, consider the T-Rex 3 Pro or T-Rex 3. Check the Specification tab for water resistance and battery figures before buying.
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: Can I dive with the Amazfit T-Rex Ultra 2?
A: It is rated 10 ATM and holds EN13319, ISO 6425 and GB/T 18828 certification for freediving to 45 metres.
Q: How does the T-Rex Ultra 2 perform in the cold?
A: In ultra-low temperatures it is rated for up to 40 hours with GPS on and up to 32 days with GPS off.
Q: What is in the box?
A: The box contains the smartwatch with its standard strap, a magnetic charging base (no cable) and the instruction manual.
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