ITEM NAME:Huawei Honor Band 4 Running Waterproof Sleep Monitor Smart Watch Wristband Product Description Description: Huawei Honor Band 4 Running Smart Watch Waterproof Long Standby BT 4.2 Sleep Monitor Wristband Bracelet Specifications: Brand: Honor Name: Huawei Honor Band 4 Running (Blue) Battery Capacity: 77mAh Battery Type: Non-Removable Polymer Lithium Battery Matching System: for Android 4.4 and later, iOS 9.0 and later Theoretical charging time: about less than 120 minutes (25Â °C ambient temperature) Theoretical working time: about 12 days (according to Huawei Laboratory Model) Theoretical standby time: about 20 days Wrist Ribbon Material: TPU75 NFC: Not Support Bluetooth: Bluetooth band 2.4 GHz; Bluetooth 4.2 protocol; Bluetooth maximum connection distance 10m/32.81ft Charging interface: POGOPIN charging mode, equipped with USB to POGOPIN charging base Sensor: 6-Axis Motion Sensor Key: One Capacitive Touch Button Screen: PMOLED Display Screen, Black White Screen Safety Protection: 50m/164.04ft Waterproof Main Body Size: 40.5 X 14.8 X 11.2mm/1.59 X 0.58 X 0.44" Wrist Strap Size: 226.15 X 17.70mm/8.9 X 0.7" Weight: 17g Software Name: Huawei Terminal Intelligent Smart Bracelet Control Software V6.0 Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3mm measuring deviation due to manual measurement. Included: 1 X Smart Watch 1 X Wrist Strap 1 X Charging Base 1 X Running Shoes Buckle 1 X Manual.Wrist Ribbon Material: TPU75. Safety Protection: 50m/164.04ft Waterproof. Included: 1 X Smart Watch. Screen: PMOLED Display Screen, Black White Screen. Bluetooth: Bluetooth band 2.4 GHz; Bluetooth 4.2 protocol; Bluetooth maximum connection distance 10m/32.81ft.