It does exactly what is says it does. With a Polar H10, displays the HR in BPM with a one-second refresh rate. I would give it 5 stars if there was a way to store/export the data.
Doesn't connect to Polar H10 (which is working fine with Strava.) Not shown on available device list.
I have multiple devices none of them have connected, useless.
Like J....67 I too would give it a 5* if I'd take the place of my watch. It worked with my H7
Didn't work at all
Does what it's supposed to do. Put Polar on, turn on BT, pair, start app, choose BT device and observe heart rate.
Update Android version
Support more devices
Most Precise Heart Rate Monitor Ever + Unlimited Measurements and Records.
Cardio Workout Tracker with Bluetooth Heart Rate Monitor or Android Wear Watch.
Accurate, free and allows unlimited measurements and records of pulse rate.