Why should you choose this product? With the runmate gps sports bracelet, you can constantly monitor your physical activity. With its integrated gps function, it allows you to track your progress in real time, without the need to carry your mobile phone with you. This bracelet also allows you to keep on top of your heart rate, calories burned, steps taken, and the duration of your training. Advanced heart rate analysis With a simple swipe to the right from the main menu on the display, you can access the health section. Choose ecg and touch the electrodes with which this watch is equipped: your results will be visible on the go life app (which can be downloaded free of charge from the apple app store and google play store) and can be shared on social media or via email. The electrodes calculate an algorithm similar to that of the ecg to give an assessment of your heart's work rate: cardiac variations, the regularity of your heart beat, and indications of tiredness*. Runmate and go