Description Mi Band 3 capsule17.9 x 46.9 x 12mm Strap Length247mm Adjustable strap length155 – 216mm Specifications Battery capacity110mAh Standby time approx. 20 days[1] Battery type Li-Ion Polymer Battery Input voltage DC 5.0V Input current250mA Max Weight approx. 20g (including wristband) Body material plastic IP rating5ATM[2] Operating temperature-10℃～50℃ Screen size0.78 Inch Display resolution128 x 80 Sensors3-axis accelerometer and PPG heart rate sensor Wireless connectivity Bluetooth 4.2 BLE Setting requirements Phones with Bluetooth 4.0 and Android 4.4 or iOS 9.0 or higher Models that support the unlock function models running MIUI systems on Android 4.4 or higher or other devices running Android 5.0 or higher Wrist strap material Thermoplastic elastomer Buckle material Aluminum alloy Features Displays the time Displays/rejects calls View messages Lift the wrist to view Goal Reminder Idle alert Vibrating alarm DND mode Follow friends Step counter Phone unlock Event reminders Sleep monitor Phone locator Heart rate monitor Weather forecast Goal setting App notifications Calorie counter Distance Pace Dual screen themeView notificationsTimer Setting display itemsLow battery alert Swim and surfSmart UnlockOTA update Show More Show Less
