When it comes to exercising, your heart rate is the gold-standard metric to uncover how hard you're pushing. It tells you whether you're working aerobically or anaerobically, how your body is reacting ...

The board is built to be mobile, capable of being powered by a LiPo battery with a JST connector or USB-C. Power consumption is super low at only 75mA when active and a minuscule 1.5 μA during sleep ...