Waterproof level:IP67APP:FitCloudPro Bluetooth version:5.0 BLE Calling Bluetiooth version:3.0 BLE Chipset: RTL8762C+JL Acceleration sensor:SC7A20Optical Heart rate sensor:HRS3600 ,Optical Heart Rate Sensor Module The main function:Receive/Reject phone calls/ Dial phone call Heart rate monitoring Blood/Blood oxygen pressure monitoring Sleep monitoring Sedentary reminder Sports pedometer/calorie consumption/track record/exercise time Call reminder and display Message is pushed and displayed Remote control camera Automatically heart rate measurement Multi-Sport measurement Clock reminder Alarm reminder 【1.83'' Colorful display and DIY Dials】: The smart watches have 1.83 inches large screens, full-screen touch and hand swipe. It ensures smooth operation and 240*286 resolution for you.Smart watches for men and women have carefully designed a choice of 180+ beautiful dials for you, and you can also customize your own fashion dials. Smartwatches allow you to switch watch face styles at any time according to your mood and occasion.【Smart Watch with Answer/ Make Call 】: Smart watch for men has built-in high-quality speakers, smart watch for android can answer/ make Call. Add your contacts to your watch. When your phone receives a call or SMS (like Whatsapp, Facebook, Twitter, Instagram, Skype ,Line etc.), you will be reminded. There are also practical functions such as music control, weather forecast, sedentary reminder, remote control photography, brightness adjustment, alarm clock, stopwatch, Find Phone etc.【High Compatibility & Long Running Time】: This smartwatch is compatible with IOS 9.0, Android 5.0 and above. This smart watch charges quickly and has a 250mAh battery. 1 hours of full charging, abuut 7 days of continuous use, and 30 days of standby.Download the APP ''FitCloudPro'' by scanning the QR code and connecting it to your mobile phone to start your smart life journey.