HUAWEI Band 4 – Graphite Black
Oxygen Saturation Detection
Blood oxygen saturation (SpO2) is one of the important vital signs that can reflect the oxygen supply of the body. HUAWEI Band 4 supports single-time SpO2 level measuring, helping you detect the level of oxygen in the blood whenever and wherever you need.4
Band body (Length x width x height): 56 mm (entire length without the strap) x 18.5 mm (width) x 12.5 mm (thickness of the band body)
Strap width: 17 mm
Approximately 24 g (including the wrist strap)
*Product size, product weight, and related specifications are theoretical values only. Actual measurements between individual products may vary. All specifications are subject to the actual product.
TFT colour screen
Android 4.4 or later
Capacity: 91 mAh
Charging time: about 1.5 hours (in ambient temperature of under 25 °C)
Screen is checked briefly 200 times a day, 50 messages a day, 3 calls a day, 3 alarms a day
Data is based on tests results from the Huawei lab. Actual battery life varies depending on your band’s configuration, operations, ambient environment, and how long the battery has been used.
*Typical value. Actual capacity may vary slightly.
Bluetooth frequency: 2.4 GHz