Sports Watch Men Dial Touch Screen IP68 proof watch For Android IOS Fitness Watches| Watches(black) Main Parameters: Touch screen: full touch Strap width:22 mm Main Function: Motion tracking: / Calories / Steps / multi-sport mode / Stopwatch tracking: 24-hour continuous heart rate mon ing / pressure mon ing / oxygen mon ing / Sleep mon ing message notification:Calls, SMS, We , QQ, Facebook, Twitter, sApp, Line, Instagram, Snap , Skype etc. Note : Wearable devices mon human activities through electronic sensors. They are at the level of consumer electronics. It's normal to have certain deviation. The health test results of the watch are for reference only, and can not be compared with medical equipment. the watch is placed on the surface of the object, there will be heart rate / pressure and test results. It is normal and not a product defect.