​Polar's H9 strap offers guided heart rate training on a budget

Polar has launched its new H9 heart rate chest strap, for those stepping up their training for in 2020. The Polar H9 joins the existing H10 and OH1+, offering ANT+, Bluetooth and 5KHz connectivity, so it will pair to pretty much all running watches, phones and even smartwatches. The Polar H9 is $59.99, so it…