IP68 waterproof has the same extraordinary waterproof capacity as traditional high-end watches. It can be used while swimming and can also record various data. (Note: Do not use in water with temperature above 38 C, such as showers, saunas, etc.).Convenient and functional Heart rate monitor, sleep monitor, stopwatch, calorie counter, fitness, walking, spinning, running, yoga, hiking, climbing and many other sports modes. The watch has more convenient functions, a sedentary function reminder function, raising hands to light up the screen, shaking photos, it is not just a simple tracker.Compatible with iOS and Android phones Download and install the free app " VeryFitPro " by scanning the QR code on the packaging or by searching on Google Play or the Apple App Store. It supports iOS 8.0 and above, Android 4.4 and above.Heart Rate Monitor & Sleep Monitor Geeky smartwatches can help you continuously track your heart rate in real time and throughout the day. By helping you adjust to a better and healthier lifestyle, it also helps you measure the time and quality of your sleep. "