Meet the Shapeheart: an armband that holds your phone and monitors your heart rate. Its magnetic phone case gives you easy access to your device. You can adjust the armband to fit any arm size. The removable optical sensor has 25 hours battery life and Bluetooth.
More items like this: here
You will be able to use Shapeheart with Runtastic and other top fitness apps.
ID, "coolwearable-20"); ?>*Disclaimer*Our articles may contain affiliate links. As an Amazon Associate we earn from qualifying purchases. Please read our disclaimer on how we fund this site.