Smilee Y68 Waterproof Smart Watch Bluetooth Sport Fitness Tracker Heart Rate Monitor Note:Almost most smartwatch haven't charger or little battery,when you received maybe need charge 40-50 mintues,it will open by itself.Don't think product is damage!!! Feature: 1.Waterproof: It supports hand washing, rain, swim wear, meet daily needs (note: cannot wear for hot water bath and sauna). 2.Health monitoring: Blood pressure monitoring, heart rate monitoring, sleep monitoring, sedentary reminder. 3.Standard sports function: Step, calorie, distance calculation. 4.Display: 3 kinds of UI interface style (main interface long press switch), time display, date display. 5.Multiple sports modes. 6.Call reminder and information push: connect, to display calls, text messages and SNSand other notifications; never miss important information. 7.Other functions: Alarm clock, stopwatch, raise your hand to brighten the screen, remote camera, find the bracelet. Specification: Case Material: Aluminum Alloy Strap Material: TPU Screen: 1.3inch IPS Colorful screen Chip: HS6620D Bluetooth Version: 4.0 Waterproof Grade: IP67 (note: cannot wear for hot water bath and sauna). Battery Capacity: 100mAh Charging Time: About 2 hours Working Time: 5days Standby Time: About 10 days Charging Mode: Built-in USB Function Button: One Touch Button Compatible System: Android 4.4 and above, IOS 8.0 and above. How to pair with your phone? Tip: Use the Fitpro application instead of connecting to the device via Bluetooth directly. Or you won t be able to sync 1.Download and install the Fitpro app on your phone. 2.Open the phone s Bluetooth. 3.Open the application, click Device: search for your device and click it.