It is a smart band with app built-in integrate Bluetooth V4.0 3D Sensor PC cloud service help people to improve healthy save time to check smart phone frequently and remind smartly. Save time to check smart phone frequently and remind smartly. It can communicate with smart phone with Bluetooth V4.0 which is super low energy. It also can upgrade via Bluetooth it means it can improve itself by firmware changing. Product Features: The First Smart wrist band with OLED screen; Show the steps Calorie / Distance / Time / Sleep quality clearly; Supports Bluetooth V4.0 Low energy Technology; X5 automatically syncs your data to PCs Macs iPhone 4S & 5 iPad 3 Retina & mini iPod touch and to select Android Phones. IP76 Protection grade: Easy to wear with Water-resistant wear it all day and night even if swimming raining or wash your hands. Your best activity companion. Built-in USB charging; Unique standard USB port in the host. Easy for charging with computer and battery bank. Silent Vibrate Mode: Built-in silent vibrate mode a silent wake alarm that gently vibrates to wake you at your desired time without disturbing your partner. Light-weight: Only 18g. It fits comfortably around your wrist. Sync your stats. See your progress: Smart band automatically syncs your data to PCs Macs iPhone 4S & 5 iPad 3 Retina & mini iPod touch and to select Android phones without plugging in or pushing buttons. This gives you real-time access to your stats on the Smart band dashboard throughout the day. Also with select NFC-enabled Android devices you can tap your device to launch your Smart band stats. Help you to get a better Sleep; Smart band tracks your sleep time the times of your wake up. Also with a silent wake alarm. X5 will help you to improve your sleep quality. Share and Compete With Friends; Make progress win your wards for daily weekly monthly achievements. Challenge and compete with your friends get praise together. Product spec: Product Size: 69.1mm x 15.8mm x 11.2mm; Battery & Power: Battery life: 4 days; Battery type: 40mAh Li-battery; Wireless sync to mobile; iPhone 4s 5 iPad 3 Retina iPad mini iPod touch 5th generation Samsung Galaxy S4; Memory: Syncing your data regularly. PC & Mac requirements: Windows XP / Vista / 7 / 8 Mac OS X 10.5 and up; USB port: USB port; Internet connection: Internet connection; Environmental requirements: Operating Temperature: -4'F~113'F (-20'C~45'C); Non-Operating Temperature: -22'F~140'F (-30'c~60'C); Water Resistant; Device is water resistant and can be submerged up to 1~2 meters. Maximum Operating Altitude: 30000 feet (9144 m) Vidonn is a smart device that can be worn on wrist; Built-in 3D sensor vibrating motor and li-ion battery; Can record real-time data of exercise and sleep in daily life and can sync this data with smart phones or PC leading you to a healthy life; Supports OS and devices: IOS: IPHONE 4S / 5 / 5S IPOD TOUCH 5 IPAD 3 IPAD MINI 2; Android: Samsung Galaxy S4 Galaxy Note 3 / 2 Xiaomi 2S all above devices need Bluetooth 4.0+ Android 4.3+; PC: Windows Vista / XP / 7 / 8.