Feature: 1.IP67 Waterproof: It supports hand washing, rain, swim wear, meet daily needs (note: cannot wear for hot water bath and sauna). 2.Health monitoring function: heart rate monitoring, blood pressure monitoring, blood oxygen monitoring, sleep monitoring (can set sleep time), sedentary reminder. 3.Standard sports function: step, calorie, distance calculation. 4.Display: 3 kinds of UI interface style, time display, date display. 5.Multi-sports mode: 7 sports modes can help you better know the specific activity data. Sports modes include walking, running, cycling, skipping, football, easy to operate and switch, and instantly display of data on the screen. 6.Call reminding and information push: connect to Wearfit APP, to display calls, text messages and SNS (Facebook, Twitter, WhatsApp, Line, kaKaoTalk, Messenger, WeChat, QQ) and other notifications; never miss important information. 7.Other functions: brightness adjustment, alarm clock, stopwatch, raise hand to light screen, remote camera, remote music play, find the bracelet. Specification: Case Material: Aluminum alloy Strap Material: TPU Screen Size: 1.3-inch IPS Color screen Chip: Hs6620D Bluetooth Version: 4.0 Waterproof Grade: IP67 (note: cannot wear for hot water bath and sauna). Battery Capacity: 170mAh Charging Time: about 2 hours Working Time: 5-7days Standby Time: about 15 days Charging Mode: Magnetic-suction charging Function Button: One-touch Button Compatible System: Android 4.4 and above, IOS 8.0 and above. APP Supporting Language: Chinese, Russian, Turkish, German, Italian, Japanese, French, Polish, Traditional, English, Netherlands, Portugal, Spain, Arabic, Korean. Message push support language: Chinese, English, Korean, Japanese, German, Spanish, French, Italian, Portuguese, Arabic, Russian, Dutch, Hindi, Polish. How to pair with your phone? Tip: Use the Wearfit application instead of connecting to the device via Bluetooth directly. Or you won't be able to sync 1.Download and install the Wearfit app on your phone. 2.Open the phone's Bluetooth. 3.Open the application, click Device: search for your device and click it. Note: 1.Wearable devices monitors human activities through electronic sensors, and they are at the consumer electronics level. 2.It's normal for certain deviation. The user should treat data objectively. Please do not compare to hospital equipment about reading, it is NOT a medical device.