Amazfit Stratos 3 is 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. Freely adjust the power consumption of your endurance sports modes such as trail running, outdoor walking and climbing, so you can get from 35 hours to an impressive 70 hours of GPS continuous operating capacity. The watch is also equipped with authoritative Firstbeat algorithms used by professional sports teams. They provide you with various professional data, so you can dramatically improve your exercise capacity while avoiding the risk of injuries caused by excessive workouts.