Running can be a great way to improve your cardiovascular fitness, increase bone density, burn calories, increase flexibility and lose weight. However it's important to start off sensibly and not push yourself too far too soon. This monitor records your heart rate as well as your distance, speed, gradient route and calorie burning information. This means that you can rest assured that, although you may be feeling tired, you're heart's OK. It links up with your phone (via Bluetooth® or analogue) and the Runtastic app, so you can get suggestions for training programmes and get encouragement from other runners.