Features: 1.3inches 240*240p touch panel Big Screen with Simple Operation: Round display, 240*240pix, simple operating system. Perfect view angles, easy control KEY, quick in reaction with high sensitivity. DIY Watch face，you can set up autodyne photos, family photos to the main watch face Dynamic heart rate histogram＆ Result analysis Heart-rate, Health Track, Alerts and Notification: Vibrating alert; Pedometer exercise step counting, the movement distance record; Sedentary long seat to remind; Sleep monitoring to detect the quality of sleep Wide Compatibility: For Huawei Xiaomi iPhone Samsung BT 4.2, APP for Android/IOS. Long Time Endurance: 240mAh, low energy consumption, full charge for 2-3 days standby(depend on the actual using situation). Watch Languages: English APP Language support: Japanese, Korean, Dutch,English, French, Russian, German, Portuguese, Portuguese, Italian, Romanian Download Hband from Android market,Google play or Apple store