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 ventilation and perspiration.