Performs well resting or not vigorously exercising. Does not give a heart rate reading while exercising.

I returned it to Amazon and received a full refund.

I then purchased a Mio Ultimate Heart Rate Monitor Watch. I am not pleased with the performance with this watch either. I'm giving it another try. Please read my review for this watch. 1 star

If you want a heart rate monitor for when you are vigoriously working out, you need a chest strap model like Polar. This monitor works as it should. You have to stop to take a reading. I have found this model to be a good performing monitor, easy to see readout, and a great price. 4 stars

an excellent product for working out in the gym;especially for cycling and circuit training. The seller informed me that there would be a delay in delivery as he had to order new stock in.The product arrived by courier in very good condition.I would definately deal with this seller again. 5 stars