Buy with confidence!!! All-day Activity Tracker : ENGERWALL IP68 Waterproof fitness tracker can record and track your daily steps, calories burned, exercise distance and time. It can also monitor your Body Temp, Heart Rate, Blood Oxygen and Blood Pressure. You can set various SMART Notification and check detailed data in the App "Runmefit". IP68 waterproof ensures that you don't need to take it off for daily hand washing, cold showers and swimming in the pool, but don't soak it in water for a long time or wear it for hot baths, saunas. Heart rate/body temperature/sleep monitor : This fitness tracker can monitor your heart rate and blood pressure all day. You can set different monitoring cycles in the APP. The longer the interval, the longer the battery life. It can also monitor your sleep at night (awake, deep sleep, light sleep, REM sleep).In addition, the latest tracker has also updated the one-click measurement function, so you can directly measure your various data at a certain moment. Call and message notifications : You can receive text messages and SNS notifications (including Facebook, Twitter, WhatsApp and Instagram) directly on your wrist. When your phone's is turned on, if you receive a message, the watch will vibrate to remind you and you can view the specific message. 16 Sports Modes : This fitness tracker with 16 sports modes to track the corresponding exercise. It will record your workout time, heart rate, and distance. With connected GPS, it can record your workout route, and so on. (Achieved through APP positioning) USB Charging : Remove the wristband and plug it into the USB-A port to charge the fitness tracker. You can plug it into the USB-A port of a computer or a regular charger to charge it. This fitness watch can last up to 5-7 days on a full charge.