Heart rate ECG blood oxygen, counter, payment, time, stopwatch, music control, Bluetooth photo Platform: Norway Nordic nrf52832 RAM: 64KB ROM: 512KB + 64 MB Applicable standards: GB4943.1-2011; GB / T22450.1-2008 machine Reference: Size 49 * 49 * 12MM, belt expansion length 240MM Alloy casing, reinforced mineral glass mirror, plastic back cover. Environmentally friendly food grade silicone strap, dual tone design Powerful charging base magnetic charging interface, charging 200 mA for 1 hour. Environmentally friendly products Color black gray, sport red, fluorescent green Main screen 1.2 inch TFT round screen resolution 240 * 240 Touch screen is fully compatible with multi-touch Bluetooth button SMS call WeChat) QQ SMS content synchronization screen (170 countries and regions language full button) 24-hour heart rate control Pedometer, calories burned, calorie consumption, athletic mileage record Sleep monitoring objectively and scientifically records and analyzes your dreams, it automatically opens the next morning from 9:00 to 9:00 Call reminder: support call rejection Bluetooth function and version: Bluetooth 4.0 Battery size and capacity: polymer large capacity 320 MAH, 100 minutes Vibration motor: support APK language: Chinese, Traditional Chinese, English, Russian, Spanish, Ukrainian, French, Japanese, German Italian Note: This watch is waterproof, but not for bathing and swimming, do not put hot water or press any button on the water!<img src="https://cc-west-usa.oss-accelerate.aliyuncs.com/16778016/1631711594209742848.jpg"><img alt="1" src="https://cc-west-usa.oss-accelerate.aliyuncs.com/16778016/1631711596940234752.jpg"><img src="https://cc-west-usa.oss-accelerate.aliyuncs.com/16778016/1631711598991249408.jpg"><img src="https://cc-west-usa.oss-accelerate.aliyuncs.com/16778016/1631711602678042624.jpg"><img src="https://cc-west-usa.oss-accelerate.aliyuncs.com/16778016/1631711605840547840.jpg"><img src="https://cc-west-usa.oss-accelerate.aliyuncs.com/16778016/1631711607224668160.jpg"><img src="https://cc-west-usa.oss-accelerate.aliyuncs.com/16778016/1631711609611227136.jpg"><img src="https://cc-west-usa.oss-accelerate.aliyuncs.com/16778016/1631711611444137984.jpg"><img src="https://cc-west-usa.oss-accelerate.aliyuncs.com/16778016/1631711612136198144.jpg"><img src="https://cc-west-usa.oss-accelerate.aliyuncs.com/16778016/1631711612354301952.jpg"><img src="https://cc-west-usa.oss-accelerate.aliyuncs.com/16778016/1631711613021196288.jpg"><img src="https://cc-west-usa.oss-accelerate.aliyuncs.com/16778016/1631711615810408448.jpg"><img src="https://cc-west-usa.oss-accelerate.aliyuncs.com/16778016/1631711618217938944.jpg"><img src="https://cc-west-usa.oss-accelerate.aliyuncs.com/16778016/1631711620503834624.jpg"><img src="https://cc-west-usa.oss-accelerate.aliyuncs.com/16778016/1631711623309824000.jpg"><img src="https://cc-west-usa.oss-accelerate.aliyuncs.com/16778016/1631711625482473472.jpg">

L8 smart bracelet heart rate ECG monitoring bracelet