<div>Accurate Heart Rate measuring, works with several apps including mapmyfitness/ mapmyrun, Wahoos own app, and Polars app. As an overweight runner I struggle to wear it because it has a tendency to move around during high impact exercise</div>
<div>It is a good, basic, heart rate monitor. No frills, but will get the job done in rough terrains when an optical watch won't.</div>