Title says it all - sometimes takes 2/3 tries to get a reading, by which time my heart rate has gone down. Not too useful. Worked fine at the beginning so hope this is not a problem that will get worse. 3 stars

I bought the watch thinking that it would be more convenient not having to wear a strap around my chest when I'm running. It turns out that its more inconvenient having to constantly press the watch with my two fingers to get a reading.
The watch also has a pedometer feature that turns off when I'm at rest. I have to remember to turn the pedometer back on or else I would be missing steps. I therefore do not get a complete total of the number of steps I took for the whole day for the times that I forgot to turn the pedometer back on. 2 stars