Hi friends, Asus Zenwatch 2 is very beautiful watch I have everseen. light-weight, Compatible Operating System with Android 4.3, iOS 8, 512 MB RAM, Qualcomm Snapdragon 400 processor with 1.2 GHz speed, 4GB Internal Memory wow in small smart watch 4gb memory very nice feature. Keep a track of every little thing that you do on this Android smartwatch and make way for a fitter and better lifestyle. there are 3 types of sensors-6 Axis Accelerometer, Gyroscope, Sensor Hub. looks good while wearing.