Appearance size: Round watch diameter 52.6mm * thickness 13.0mm Surface treatment process: Zinc alloy case sandblasted with high gloss plastic bottom cover Watch strap material: Silicone strap 24mm wide Bracelet weight: 77.4 grams Packaging box size: 270mmX81mmX30mm Weight: 93 grams Chip: 8763EWE Compatible systems: Android 4.4, iOS 9.0 and above versions RAM: 160KB FLASH: 128Mb Pixel: 360 * 360 Touch type: Full screen touch Touch screen material: Tempered glass Call: Supported Music function: support Sports function: support Blood oxygen: support Speaker: Super large magnetic 0916 waterproof speaker Mike: Strong anti 4015 waterproof microphone BT: Bluetooth 5.0 BLE Transmission range: approximately 10M G-Sensor: Shilan Micro SC7A20 Heart Rate: Tianyi Hexin 3605 high-precision heart rate module Motor: Flat 0820 motor Capacity: 710Mah Charging method: magnetic suction Button: 3 buttons (including 1 encoder button) LED indicator light: Yes Waterproof grade: IP67 Band language: Simplified Chinese, English, French, Spanish, Japanese, Russian, Portuguese Mobile APP language: Chinese, Traditional Chinese, English, German, Korean, Spanish, Japanese, French, Russian, Arabic, Ukrainian, Italy, Portugal Main functions: One click Bluetooth connection, incoming call reminder push, SMS reminder push, WeChat reminder push, QQ reminder push, exercise recording (step count, mileage, etc.), trajectory map, sleep monitoring, sedentary reminder, calorie calculation, stopwatch, low battery reminder, hand up screen, fast charging, ultra-low power consumption, heart rate, blood pressure, vibration, exercise mode, remote photography, music control, intelligent alarm, weather forecast, high-definition large screen, multi dial switching, WeChat sports. call