Smartwatch - Universal - Smartwatch IP68 Waterproof Heart Rate/Sphyrometer Watch Fitness Tracker Athlete Smartwatch Men | Smartwatches (Black) Highlights Universal Smartwatch IP68 Waterproof Heart Rate/Sphyrometer Watch Fitness Tracker Athlete Smartwatch Men | Smartwatches (Black) Smart Watch IP68 Waterproof Heart Reward/Blood Pressure Monitor Fitness Watches Sports Tracker SmartWatch Men Women | Smart Watches (Black) Special Features: Waterproof: IP68 Bluetooth 5.0 1.3 inch full touch screen Heart rate monitor Blood oxygen monitor Sleep monitor MULTI-SPORTS MODES Pedometer Call or message reminder Phone ID display Call Reject Call Information Reminder Push (SMS / QQ / WECHAT / Skype / Facebook / Twitter / Line / WhatsApp) Push Music Control Auto Light Screen Alert Type: Vibration Stopwatch Other Functions: Alarm Clock, sedentary reminder, camera remote control, anti-lost App name: Yfit App language: English, German, Korean, Spanish, Japanese, French, Russian, Ukrainian, Italian, Portuguese, Chinese, Traditional Chinese Note: The wearable devices monitors human activities through electronic sensors, and they are at the level of elusiveness of consumers. Normal for some deviations. The user should process data objectively. --Please do not compared with hospital equipment on the reading, this is not a medical device - Before using, scan the QR code on the manual to download the app and connect it to the watch with app. - For Android User: Please always allow app access to all phone functions and always keep it running. And please turn on the GPS on your phone before connecting it. --Please charge it for 2-3 hours when you receive it. It ran out of power after the long delivery. THANKS