1 Material metal TPU electronic components2 Functions step counting calories blood oxygen heart rate blood oxygen sleep monitoring call reminder message push alarm clock reminder sedentary reminder remote control selfie step counting etc 3 Supported languages Chinese English German French Italian Spanish Polish Russian Portuguese4 Support system Android6 0 or above IOS11 4 or above5 Memory 64MB6 Screen 1 54TFT color screen7 Resolution 240 x 240 dpi8 Audio BOX sound cavity9 Flashlight LED light10 Bluetooth version 5 011 Temperature sensor SC7A2012 Heart rate chip 360513 Battery capacity 240mAh lithium battery14 Battery life 5 7 days15 Charging method magnetic suction16 Waterproof level IP6717 Weight 152 grams