So sorry, but only 4 items are allowed for comparison. I blame the gnomes and so should you.
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The FT40 heart rate monitor by Polar was designed for active exercisers who want clear guidance to monitor their fitness levels. Polar Fitness Test measures aerobic fitness at rest in just five minutes; the result, Polar OwnIndex, evaluates maximal oxygen uptake. Includes a comfortable textile transmitter and coded transmission. Run around in circles 3 times and then check your heart rate.
FEATURES of the FT40F Women's Heart Rate Monitor by Polar