Swim skills and ANT+ upgrade for Polar’s chest strap alternative
Chest straps and wrist-worn optical sensors are the mainstay of heart rate trackingfor sport and fitness, but neither of these designs cope particularly well in the water. That’s where Polar wants to change things with the OH1+.
The update to the original OH1 heart rate monitor armband now adds the ability to monitor your heart rate from your temple by clipping the sensor onto your swimming goggles. You can still wear it on your arm, but it now opens up the ability to measure effort levels when you next jump in the pool.
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https://www.wareable.com/sport/polar-oh1-plus-review-7383