Wristband activity tracker Rectangle Black Touchscreen 2.79 cm (1.1") AMOLED 126 x 294 pixels Heart rate monitor Hours slept Quality of sleep Waterproof Bluetooth 5.0 100 mAh Battery life: 14 day(s) Performance ROM capacity 16 MB RAM capacity 0.001 GB Processor model Apollo 3 Processor frequency 0.096 GHz Colour display Yes Touchscreen Yes Display resolution 126 x 294 pixels Display diagonal 2.79 cm (1.1") Display type AMOLED Design Control type Touch Waterproof up to 50 m Water resistance 5 ATM Waterproof Yes Adjustable Yes Band size One Size Band colour Black Product colour Black Form factor Rectangle Device type Wristband activity tracker Features Position location No Eat & drink No Quality of sleep Yes Hours slept Yes Heart rate monitor Yes Ports & interfaces Wi-Fi No Bluetooth version 5.0 Bluetooth Yes Power Battery capacity 100 mAh Battery life 14 day(s) Weight & dimensions Thickness 1.2 cm Depth 44.1 mm Width 21 mm Weight 23 g System requirements Mobile operating systems support