Other features: Alarm, proximity sensor, pre-set watch face, customizable watch face, lock screen, timer, stopwatch, phone alarm and notifications, incoming calls, message notifications, calendar notifications, app notifications, weather forecast, Find my phone, phone unlock, event notification, Night mode, Do not disturb mode (works even without phone), music controls on band, Bluetooth broadcasting, battery level display, different ways to wear, OTA updates.
0.95" inch AMOLED display
Resolution: 120 x 240 RGB
Screen Brightness: Up to 400 nits (max brightness), brightness adjustable
Wrist strap type: Removable wrist strap Removable wrist strap (Mi Smart Band 4 is compatible with Mi Band 3 straps)