Hardware Configuration: CPU:RTL8762DT Screen size:1.32 inches Battery: 250mAH Resolution:360*360 Waterproof level: IP67 Bluetooth Version: Dual mode: BT3.0; BLE5.0 Charging method:Wireless charging C more→ompatible with: iOS 9.0 or Android 5.1 and above Pedometer: Yes Calorie counter:Yes Heart rate:Yes Product Features: Bluetooth calling, 4 sets of menu styles, support for more than 200 dials, breathing training, custom dials, step counting, brightness adjustment, multi-sport mode, sleep detection, heart rate, blood pressure, blood oxygen, information push, remote music, remote photography, Real-time weather, find mobile phone (connected to mobile phone), Bluetooth music playback, password protection…