Would you like to know your heart rate while participating in up to 20 different sporting activities? Do you want to receive call and message notifications while you are participating in these activities? If so, then purchase yourself the Nuband Flash HR. This easy to use dynamic heart rate touch screen activity and sleep tracker will keep you in touch without having your phone in hand. Never miss a call or text again - see who is calling or texting. Want to know your real-time data? Just gently swipe the screen to the next function. With gesture control, you can flick your wrist to know the time, date, and how you have fared in 20 different types of sports. With a 5 to 7-day battery life on a 2-hour charge you will not have worry about being out of battery. Due to its IP67 water resistance, you need not worry if it starts to rain or you need to wash your hands; the Flash HR will keep moving forward without missing a beat, its own or yours. The app is found on Google Play or the Apple Store, and is compatible with iOS 8.0 or greater and Android 4.4 and greater.