zodvboz Watch 5 Introduction: Waterproof IP67 Wristband material: silicone material Wristband wearing range 14-20CM Color black, silver, gold G-sensor support Bluetooth antenna support Motor support Bluetooth V4.0+V3.0 LCD 1.39 full circle full touch Side button 2 Battery capacity 220mAh Basic functionsAnswer calls, make calls, heart rate/blood oxygen/blood preure monitoring, calculator, time/calendar display, step counting, distance, calories, weather, Bluetooth music playback, sleep monitoring, call reminder, SMS reminder, social APP meage Reminders, alarm clock reminders, sedentary reminders, turn the wrist to brighten the screen, multi-sports modes, find bracelets, find mobile phones, remotely take pictures, multi-dial switching, custom background, brightne adjustment, etc. Social APP meage reminder Support WeChat, QQ, Facebook, Twitter, Line, Whatsapp, Instagram, etc. More sports:walking, running, cycling, table tennis, basketball, mountain climbing, volleyball, football APP system IOS 10.0 and above system, Android 5.0 and above system Support languages:Simplified Chinese, English, French, Spanish, Portuguese, Ruian, German, Dutch, Turkish, Malaysian, Polish, Czech, Slovak, Arabic, Italian, Thai Charging time 1.5-2 hours Use time about 3-5 days Standby time is about 15 days Although the bracelet can monitor your heart rate, it cannot be used for any medical purpose,it is only to help people live a healthier life.All measurements results are for reference only.They are based on seientific algorithms and sensors.So please don& x27;t compare them to medical devices,we appreciate your understanding.