Fitness Tracker Pedometer Vcall I5 PLUS Waterproof Bluetooth Activity Tracker Sports Bracelet Smart Band Wristband Fitness Watch with Touch Screen Health Sleep Monitor for iPhone Android Phones Quite conveniently wake up the screen and check time & app notifications without having to grab your smart phone. Contact us if you can not register on the syn app "Zeroner Health" Tracks calorie burned, walking distance, steps taken and your sleep status. Gently wake up in the morning with its vibration alarm feature on Vibrate Reminder: Shows the contents of your Call/Message,Facebook,Twitter,YouTube,WhatsApp and other SMS notifications and sedentary remind etc on the OLED sensitive touch screen with gesture sensor control IP65 Waterproof and Dustproof:Swimming and diving is not advised,long-term and large-area accidental water & oil contacts may do harm to its battery and lead to a failure waking-up device. Clean the USB chip part and keep it dry Compatibility: IOS must be IOS 7.0 or above,Bluetooth 4.0,Such as iPhone 4s,5,6,6s plus,iPod touch 5,etc; Android must be Android 4.3 or above,Bluetooth 4.0.