the clock uses my friend because you can not wear a heart rate belt. The clock is quite reliable but also to influence quickly. We have the impression that the clock is not as described 95% ejects the same values as those of a Pulsgurts. We have the impression (but it can not prove safe with me as a man does not fit the clock around the wrist) that at low outside temperature (-3 to 2, C), the measurement is affected. There are days where my friend runs off me and the clock tells a different story! The cardiac investigation said something else.
What we do not understand, which is the clock has no lighting!?!?!
The model to date and with the above mentioned rough edges, probably the choice of choice!?!? Does anyone have the alternative to the chest, I would advise against the MIO Alpha more!