Dimensions 44.35 x 26 x 9.99 mm *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. Weight Approximately 16 g (without the 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. Display 1.47 inch AMOLED 194 x 368 pixels *The AMOLED touchscreen supports slide and touch gestures. Watch Case Colour dark gray, gold,green, red Material Durable polymer materials Watch Strap Graphite Black Silicone Strap, Nebula Pink Silicone Strap, Flame Red Silicone Strap, Wilderness Green Silicone Strap, Sensors Accelerometer sensor Gyroscope sensor Optical heart rate sensor Button Power and function button Charging Port Magnetic charging thimble System Requirements Android 6.0 or later iOS 9.0 or later Waterproof Level 5 ATM water-resistant *Devices complying with the 5 ATM-rated water have a water resistance rating of 50 meters under ISO standard 22810:2010. This means that they may be used for shallow-water activities like swimming in a pool or ocean. However, they should not be used for scuba diving, waterskiing, or other activities involving high-velocity water or submersion below shallow depth. Connectivity 2.4 GHz, BT5.0, BLE Environment Temperature -10 ℃~+45 ℃ Charging Charger Voltage and Current Requirements 5V 1A/1.5A/2A Battery Life 14 days for typical use *The typical usage scenarios are decided based on the user habits. The specific battery life depends on the user habits and usage frequency. In The Box HUAWEI Band 7 x 1 Charging cable and cradle x 1 User Guide & Safety Information & Warranty Card x 1