You need manually refresh the APP to get the updated data everyday,the fitness tracker can't save your data,please update your data everyday,so that the APP will save your data in your smart phone. 3. About can not synchronize iphone 5s, this bracelet support Android 4.4 and later, Bluetooth iOS 8.0 and above
Warning:The bracelet must be connected to the phone before it can display the same time as the phone.The time can not be adjusted until the device is connected.Please Exhaustive Read the User Manual Before Using the Product.
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.
Download and install the free APP"H Band"from Google Play or Apple App Store.Connect this fitness wristband with the app in your smart phone or tablet via Bluetooth,data will be transmitted to the App.It can monitor your sleep quality at night and your sleep quality data including sleep scores,deep sleep hours,awake hours,etc will display on your phone.You can also set alarm clock in the App and it will vibrate to wake you up.
Easy and Quick to Charge:Built-in low-power-consumption Bluetooth chip,sensor and 70mAh rechargeable battery.Simply insert it into USB port of computer or portable power bank,etc,full charge requires About 1 hour.Note:So the product not include charger cable.Please make sure wristband is not out of battery when use if for the first time.