1.With 240*240 HD touch screen, HD Smart Watch provides you very clear and comfortable experience. ATTENTION: NO SWIMMING, NO DIVING, NO SHOWERING. 2.The smart watch supports Bluetooth dial and answer calls. You can directly make calls and answer calls on your watch. Get free from your phone especially when you are driving, or jogging, etc. Built in speaker, mens smart watch can not only control the phone music playing, but also play the music itself. 3.As a fitness tracker watch, mens sport watch supports multiple sports modes. Built in a 200mAh battery, it only takes 2 hours to get fully charged and can be used for up to 2-3 days. 4.The smart watch supports sleep tracker, heart rate monitor, blood pressure & oxygen in real time to get a better understanding of your health. Attention: It is not a medical device!! This Blood Pressure function can't be used as Professional Medical Blood Pressure Monitor. 5.The android smart watch for men is compatible with most iOS 8.0 and Android 4.4 and above smartphones(not for PC, iPad or tablet). Turn on the phone's Bluetooth and connect to the smart watch via APP.