MP3 Playback, Touch Screen, Bluetooth, Build in Flash, APP Control, camera: No camera design: Flip Movement type: electronic Band Material: Silica Gel Case Material: ALLOY Function: chronograph, CALENDAR, Alarm Clock, Week, MONTH, Remote Control, Sleep Tracker, Fitness Tracker, Passometer, Call Reminder, Push Message, Message Reminder, Dial Call, Heart Rate Tracker, Interactive Music, 24 hour instruction, Permanent Calendar, Blood oxygen monitor Screen Size: 1.54 Inch Resolution: 240x240 Battery Capacity: 280mAh Waterproof: IP67 Waterproof Color: 4 Colors Compatible: Android 5.+/iOS 9.0+ About Feedback -If you're satisfied with our products and service, Please spend few minutes to write us a positive 5 star feedback, thanks in advance for your support. -Please contact us before you leave a negative feedback or open dispute. We are so willing and will do our best to help you to solve any problem, we are serious seller, please trust us.