AmazFit Stratos 3 GPS Sports Smartwatch, Black

Built for professional sports, the Amazfit Stratos 3 adopts a 1.34-inch full round transflective MIP display perfectly suitable for outdoor use; the brighter the light is, the clearer the display looks. The four physical buttons enable you to browse through the features and control the device without using the touch screen.

This is especially useful while running or when your hands are shaky after intensive workouts. The 316L stainless steel body combined with reinforced plastic makes the watch robust while minimizing its weight, and the black silicone strap facilitates the ventilation and perspiration.

Double Cores + Dual Systems 14-Day Ultra Endurance Mode
Dual Core System - Switch from smart mode to ultra endurance mode to get from 7 to 14-day battery life, while still accessing 24H heart rate, notifications and 11 sports modes.

1.34" Full Round Transflective Display
Customized large full round transflective display for larger viewing area and easily readable under bright sunlight.

70-Hour Continuous GPS 3 Modes / 4 Satellites
GPS continuously work from 35 to 70 hours with power-adjustable endurance sports modes (trail running, outdoor walking, Climbing). Three-mode/Four-satellite positioning Premium sony GPS chip for increased speed & accuracy.

80+ Sports Modes
Track your daily activities, sleep, as well as more than 80 sports modes, covering daily and multiple professional sports such as running, swimming, triathlon, climbing, trail running and more.

BioTracker PPG Heart Rate Sensor
Huami self-developed optical sensor, provides high-precision continuous heart rate tracking, heart rate warning and heart rate interval values.