We welcome you to email us any suggestions. We will be glad to take a look at them to maintain quality. NOTE: Bracelet Usage: Download APP: WannaFit - press on touch button for 5 seconds to power on - open APP and bracelet to connect (The band may be connecting with or banding with another smartphone, or you disconnected on APP but not disconect from ANCS channel.Please Disconnect it first and clean it from last accout banded list.If still not work, please reboot smartphone and band to try again.) Charging:Remove the strap,insert the USB part(reverse side to touch button)of the receiver into a standard USB port to charge.During charging,display will show battery charging symbol.When charging finish,display will turn off. Waterproof IP67 rated smart bracelet that can be immersed in water for up to 30 minutes at a time.You can wear it freely to washing face, taking a bath,don't need to worry about it. Supported Devices: iOS:iPhone 6S,6S Plus,6,6 Plus,5s,5c,5,4s,4,iPad 3,iPad Air,Mini,iPad,iPad Retina or newer(Support iOS 7.1or above) Android:LG G3,HTC One Max (Android must be 4.3 or above with Bluetooth 4.0 support) Secification: IC Chip: Dialog Sensor: AGC Heart Rate Sensor\AGC\ Three-acle G-sensor Display: 0.99''OLED Batery: 3.7V/120mAh Charginng: USB charging Bluetooth version: 4.0BLE Material: Belt:(TPU), Body(ABS PC) Standby time: 15 days Special Function: 1.24hrs Heart rate Monitor,Exercise intensity and quality analysis,Calories and food energy conversion,Steps Tracker,Sleep quality tracker, in-coming calls/SMS reminder,QQ/Wechat Reminder. 2.Language: Chinese, English.
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