Being 10-times more sensitive than most heart rate monitors, and 5-times more responsive, the 4iiii Viiiiva is one of the most advanced heart rate monitors on the market. With advanced beat-to-beat… Price: $79.99 (Price correct on 2021-12-26)
Being 10-times more sensitive than most heart rate monitors, and 5-times more responsive, the 4iiii Viiiiva is one of the most advanced heart rate monitors on the market. With advanced beat-to-beat… Price: $79.99 (Price correct on 2021-12-26)