HUAWEI BAND 4 FEATURES Band body (Length x width x height): 56.0 mm (entire length without the strap) x 18.5 mm (width) x 12.5 mm (thickness of the band body) Strap width: 17 mm Strap length: 123 mm + 85 mm Approximately 24 g (including the wrist strap) TFT colour screen Resolution: 80 x 160 pixels Size: 0.96 inches Android 4.4 or later iOS 9.0 or later 3-axis acceleration sensor Infrared wear sensor Optical heart rate sensor USB charging port 5ATM Capacity: 91 mAh Charging time: about 1.5 hours (in ambient...