Xiaomi Mi Band 3 Unboxing

The Xiaomi Mi Band 3 is a wearable activity tracker produced by Xiaomi Inc. It was released on 31 May 2018. It has a capacitive OLED display. The tracker features heart rate monitoring, although it does not offer continuous heart rate display.
Specifications:
Display: 0.78 inch OLED, single point touch screen.
Resolution: 128 x 80 pixels.
Button: capacitive.
Connectivity: Bluetooth version 4.2 BLE; NFC on some models.
Size: 46.9 x 17.9 x 12 mm.
Weight: 20 g.
Casing: plastic + alloy.
Battery capacity: 110 mAh for 20 days of battery life.
Sensors: accelerometer, optical heart rate monitor.
SoC: Dialog Semiconductors 14681, clock rate 32 kHz up to 96 MHz.
Waterproof: up to 50 metres, 5 atmospheres.