Zepp Health Corporation (Amazfit) · Hefei, Anhui
Amazfit T-Rex 3
Rugged 10 ATM GPS watch with 27-day battery and dual-band positioning.
Overview
The Amazfit T-Rex 3 is a rugged GPS smartwatch with a 1.5-inch 480x480 AMOLED display (322 PPI, up to 2000 nits) inside a stainless-steel-bezel body rated 10 ATM and certified to EN13319 and ISO 6425 for freediving. A 700 mAh battery provides up to 27 days of typical use and up to 180 hours in maximum GPS mode. Dual-band positioning over six satellite systems, offline maps, 177 sport modes and BioTracker 6.0 health sensing complete the package.
Key highlights
- 1.5-inch 480x480 AMOLED at 322 PPI with peak brightness up to 2000 nits
- 700 mAh battery: up to 27 days typical and up to 81 days in clock mode
- Up to 180 hours in max GPS mode and 42 hours in accurate GPS mode
- 10 ATM water resistance with EN13319 and ISO 6425 freediving certification
- Dual-band positioning across 6 satellite systems with offline maps
- 177 sport modes, 25 auto-recognized strength movements and BioTracker 6.0 PPG
Technical parameters
20 published parameters, grouped. Source links are listed under “Data sources”.
Display
| Panel | 1.5-inch AMOLED, 480x480, 322 PPI |
|---|---|
| Peak Brightness | Up to 2000 nits |
| Glass | Corning Gorilla Glass |
Design
| Dimensions | 48.5 x 48.5 x 13.75 mm |
|---|---|
| Weight | 68.3 g (without strap) |
| Body Material | Stainless steel bezel, polymer middle frame |
| Strap | 22 mm liquid silicone, wrist 145-210 mm |
Battery
| Capacity | 700 mAh |
|---|---|
| Typical Usage | Up to 27 days |
| Battery Saver / Clock Mode | Up to 40 days / up to 81 days |
| GPS Battery Life | Up to 180 hours (max GPS mode); 42 h (accurate mode) |
| Charging Time | Approx. 3 hours (magnetic charging base) |
Sensors
| Biometric Sensor | BioTracker 6.0 PPG |
|---|---|
| Other Sensors |
|
Positioning
| GNSS | Dual-band, 6 satellite systems; offline maps and route import |
|---|
Connectivity
| Wireless | Wi-Fi 2.4 GHz 802.11b/g/n, Bluetooth 5.2, BLE |
|---|
Durability
| Water Resistance | 10 ATM; EN13319, ISO 6425 freediving to 147 ft |
|---|---|
| Operating Temperature | -30C to 45C |
Software
| Sports Modes | 177 sport modes; auto recognition of 25 strength movements |
|---|---|
| App Compatibility | Android 7.0+ / iOS 14.0+ with the Zepp App |
Applications
- 1Outdoor hiking and trekking
- 2Trail and ultra running
- 3Freediving and watersports
- 4Strength and gym training
- 5Expedition and cold-weather use
- 6Health and sleep monitoring
Application video
Manufacturer
Zepp Health Corporation (Amazfit)
Hefei, Anhui · est. 2013 · Brand
Zepp Health Corporation (formerly Huami) was founded in 2013 and builds the Amazfit smartwatch and wearable brand; its main operating entity, Anhui Huami Information Technology Co., Ltd., is based in Hefei, Anhui. The company is listed on the NYSE under ticker ZEPP and reports products available in more than 90 countries with over 200 million units shipped. Amazfit devices combine multi-sport GPS tracking with in-house BioTracker health sensors.
Export markets: North America, Europe, Asia-Pacific, Middle East & Africa
Data sources & verification
Compiled from publicly available sources and last verified on 12 Sept 2026. Specifications can change without notice — confirm with the manufacturer before ordering.
- us.amazfit.com https://us.amazfit.com/products/amazfit-t-rex-3
- us.amazfit.com https://us.amazfit.com/pages/contact-us
- us.amazfit.com https://us.amazfit.com/pages/about-amazfit
