Review on Polar H10 Bluetooth Heart Rate Monitor, Compatible with iPhone & Android - Black Chest Strap HRM by Aneta Kaska ᠌

I took it to train on the pulse. Measures everything perfectly, no complaints, but without a phone or watch, the use is reduced to zero. The polar app only notifies you of the average heart rate per kilometer, which is not always convenient, so you have to hold the phone in your hand, and, as a result, buy a watch. Pros below: It measures the pulse as accurately as possible, does not fall down during training. With its cons. Belt for chest circumference 74 cm, it is better to take xs-s, in m-xxl you have to tighten it too much