I'm looking for a basic heart rate monitor because my Polar belt no longer communicates with my Precor elliptical trainer. This belt also did not fit my Precor. I was then able to see it and connect it via Bluetooth on my Android phone, but none of the fitness/heart rate monitoring apps listed in the instructions worked with it. they will work too. Some of the recommended apps may have made this connection at one time, but have since become branded property. This idea might work if Powrlabs had a dedicated Bluetooth app - but those apps don't seem to work well either way - without proprietary hardware. A simple thing like a constant heart rate. Very disappointing - already on the way back.
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