Function Specification Main Features 1.43 inch AMOLED screen Detachable strap, standard 22mm Multiple pushing watch faces, custom watch faces BT call, BT music (superior clear audio as sound effect), time display Heart rate detection, blood pressure detection, blood oxygen detection, all day heart rate detection Time display, pedometer, calorie consumption, distance calculation, heart rate, blood pressure, blood oxygen, dyspaly on andamp off, stopwatch, countdown timer, various sport modes Sleep detection (sleep time, sleep quality) Calls to remind, SMS reminder, third party message reminder, multilingual push, alarm clock, remote camera, sedentary reminder, beverage water reminder, physical cycle reminder, English, Chinese, Japanese, German, French, Spanish, Arabic, Russian, Ukrainian, Portuguese Large 360mAh battery, super long standby time, bright screen under sunlight Synchronous data for APP FitCloudPro APP APP OS compatibility required: Android 6.0 or higher, iOS 10.0 or higher BT support with version 5.0 Hardware specification Display Size 1.43 Inch AMOLED Screen Screen Resolution 466x466 CPU Realtek RTL8763EWE-VP Flash Memory 128MB Version BT BLE 5.0 Heart rate sensor HX3605 Speaker 0916 Battery capacity 360mAh Waiting time About 30 days Battery time 5-10 days Engine built in, vibration reminder Charging method Magnetic charging