3 HR - Rugged Inside Out (Pls do not wear it when taking a shower or go swimming & do not press any buttons underwater.)  Explore with your "heart" During exercise, check your real-time heart rate to learn about your progress. No matter what your goals are, it can always provide you a guide to know when to strive and when to relax. Test a runner with the data By using the inbuilt 3D accelerometer, track your current speed and distance, allowing you to look up speed and distance even in indoors motion (such as treadmill running ). *The data accuracy will be affected by factors such as using habit, motion range of different persons. Develop your full potential, discover a better you Calories calculation is based on heart rate and physical information. You can look up not only real-time heat consumption (in a unit of Kcal) in training but also the total heat consumption per training after training. *Conducts calories calculation in sport based on weight, height, age, gender, heart rate in training, maximum heart rate (HRmax), motion strength in training. Hardshell, stand up to the toughest environments Backed by an international standard rating of IP67, VIBE 3 HR wrist watch has waterproof performance high up to 50-meter/164 ft, Hence, no water, dust, or dirt will soak into the smartwatch in daily life or on ourdoor trips. For travelers who often encounter heavy rain, mud, and rivers, the impervious VIBE 3 HR would definitely be your best assistant. The 3D interface Unlike typical sports watches, VIBE 3 HR has a totally unique 3D interface. It is not necessary to study complicated graphs or reports to understand activity performance, the watch face uses 3D animations to easily see at a glance one’s daily activities, sleep information, and more. It even has friendly inactivity reminders to help users be fitness-minded. Motion effect function Track your motions through the day, and indicate how the motions help to keep your health, the motion effect function allow to indicate in diagrams the average completion status of daily goals of daily, weekly, monthly motions, and provide beneficial feedback for you. *Daily, weekly, monthly Smart sleep monitoring record Good sleep is essential for health and happiness. VIBE 3 HR newly launched a sleep monitoring bracelet with the function of advanced sleep analysis function, enabling good mastering of sleep, thus being a good mate in your stride toward a more balanced lifestyle. *Sleep quality assessment is dependent on the movement of your wrist instead of heart rate measurement. Make every second count in your life. The device will display alert for the incoming call, text message and schedule, so important information will not be missed. Shorten charging time There are 24 hours a day, as well you need a 24-hour standby watch. VIBE 3 HR longer standby up to 5 ~7 days, track all your activities. Compatible with more smartphones Automatically sync to more than 200 Android and iPhone devices. Statistics and exercise status show on the digital display APP Languages:English, French, Italian, German, Russian, Spanish, Portuguese, Polish, Japanese, Korean.