Inaccurate Heat Rate Monitoring during exercise

[BruceAnderson]

During resting the heart rate seems to work fine. When exercising the heart rate will not go higher that 90 or 100 (Is around 150 normally when checking at the GYM with other machines or watches)

I have worn the band in every possible way as described in other topics in the forum. It does not work. Any solution for this?

I have the 

[Guy_]

Hi @BruceAnderson - it is a common problem with the heart rate sensor on this watch type.

It seems to depend on type of exercise and the person, for some it under reads and for others over reads (mine can read almost double).

[Tableesum]

Having same issue since i got the watch in October. Called support several times and nothing has helped. Now lately it is not tracking my sleep cycles. Please update is you get any good feedback or get something that fixes it.