Polar Verity Heart Rate Monitor Armband Black S-L

The measurement is very good even compared to a chest strap. I never feel like it gets in the way and the design is good. The only drawback is that the velkro does not stick well and sometimes comes loose. Maybe this is just a manufacturing error

It fits comfortably around your arm. You really don't feel that you have this on and even forget to take it off after exercise. The heart rate is accurately indicated and the communication between the meter and the receiver (phone) is good, stable and fast. The meter fits snugly against the skin and will not rotate quickly like a chest strap. It is therefore really more comfortable than a chest strap. It is rechargeable, which is really nice because you don't have to peak out the battery when it's gone. The USB charger is nice and small and barely bigger than the meter itself. I haven't been able to try the swimmers yet, but the fact that there is a separate position for them tells me that it has been well thought out and it will probably work well.

Works great and does exactly what it's supposed to do