Resolution: 466 × 466, PPI 326 - Watch Case: Stainless steel - Charging Port: Wireless charging - Button: Button (supports pressing, but does not support rotation-based interactions, such as zooming in or out and scrolling a list) - cover opening button - Sensors: 6-axis inertial (acceleration and gyroscope), optical heart rate 5.0, ambient optical, Hall effect, capacitive, and bone conduction component (VACC).