12 Military Grade Certifications. Resistant to Harsh Environments.
Robustness and reliability are particularly important for outdoor smartwatches. Amazfit T-Rex passed 12 military grade certifications, ensuring its robustness and resistance to harsh environments.

Tough from The Inside Out.
Tough Appearance, Solid Craftsmanship.
The Amazfit T-Rex's shape is tough, solid with distinct angles, and brimming with strength. The strength-enhanced design of the body details and internal structure take into account a sense of both strength and practicality, making it tough from the inside out, and making it a partner you can rely on.

20-Day Ultra-Long Battery Life.
Fighting The Wilderness with You.
A new circuit design especially developed for Amazfit T-Rex, an advanced low power-consumption chip, and a deep power optimization give the Amazfit T-Rex a longer battery life. Stays with the user over the long haul, allowing you to wear it without worry and never think about charging.

1.3-Inch AMOLED Color Screen and Always-On Display.
Choose A Watch Face to Match Your Personality.
The Amazfit T-Rex uses a 1.3-inch AMOLED color screen which supports always-on display, making important information available simply by raising your wrist. Moreover, the variety of gorgeous watch faces allows you to fully express your personality.

High-Precision GPS Dual-Satellite Positioning.
Optimized Efficiency, Faster and More Accurate Positioning.
The watch uses a high-end Sony GPS chip and built-in highly precise dual-satellite positioning system. We have also optimized the watch body materials and internal layout, and even highly optimized signal reception to account for interference from the arm while wearing. Signal efficiency has been significantly increased, making satellite search faster and positioning more accurate, meeting your positioning needs among both urban jungles and canyon wilderness.

Water Resistant to 50 Meters. 14 Sports Modes
The Amazfit T-Rex has 14 built-in professional sports modes, and is rated waterproof to 5ATM. You can wear it while swimming in pools and open water to meet the diverse needs of athletes. The watch also monitors data such as exercise heart rate and exercise duration statistics, making your workouts safer and more efficient.

All-Day Heart Rate Monitoring. Focusing On Your Health.
The watch is equipped with Huami's self-developed BioTracker™ PPG Bio-Tracking Optical Sensor, which perform high-precision heart rate monitoring 24 hours a day. The watch also issues reminders to stand up, which encourage you to develop healthy habits and become your best self.

Weather Notification, Call Reminder. More Practical Tools at Your Wrist.
The Amazfit T-Rex has a wealth of smart functions, including weather forecast, event reminders, call reminders, app notifications, and more, offering a variety of practical tools to facilitate your daily work and life.

Dimensions
47.7 X 47.7 X 13.5 mm

Weight - 58g (with strap)
Waterproofing - 5ATM, supports swimming
Screen - 1.3”AMOLED,
Resolution 360 x 360
Touch Screen - Corning Gorilla Glass 3 + anti-fingerprint coating

Sensors - BioTracker TM PPG Bio-Tracking Optical Sensor
3-axis acceleration sensor
Geomagnetic sensor
Ambient light sensor

Positioning - GPS + GLONASS
Connectivity - Bluetooth 5.0/BLE
Battery - 390mAh LiPo (Minimum value)
Accessories - Magnetic charging base, user manual
Charging method - Magnetic, 2pin pogo pin charging
Theoretical Charging Time - Magnetic, 2pin pogo pin charging
Battery Life - Daily use mode:20 days Heart rate monitoring always on, sleep monitoring; GPS turned on for 13 minutes a day, 150 messages pushed daily which activate screen, wrist raised 30 times which activate screen, 5 minutes of other operations.Basic watch mode: 66 days Bluetooth connection to phone turned off, heart rate monitoring and other functions, screen activated by wrist tilt 100 times a day.GPS continuous working time: 20 hours GPS activated to track exercise and monitor heart rate.

Body Material - Polymer materials
Supported devices - Android 5.0 or iOS 10.0 and above
AppZepp App (formerly known as the Amazfit App)