This is a multi-functional smart watch. Functions including calorie monitoring, GPS, motion tracking (running, cycling, climbing, marathon), heart rate monitoring, sleep monitoring, message push / APP reminder (Facebook, Twitter, Skype, WhatsApp, etc.), alarm clock, remote camera, real-time weather, timer, music player, sedentary reminder, pedometer. Compatible with Android 4.4 / iOS 8.0 and above. It will surely bring much convenience to your life.