Blaze shows low heart rate when rate is going high

[Ibeezzz]

My blaze has been showing my heart rate at 140-159 when I know I am at 170 or higher... anyone having this problem?

[konkivo]

Me! It's even worse, I'm working out and my fitbit says I'm at 110 when I'm at least in the 150s. I tried moving it up and down the arm, drying it, wearing it loose, tight, everything and nothing. It is very annoying because my calories and active minutes are way off because of this. Anyone found a solution? 

[dorketh]

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@Ibeezzz wrote:
My blaze has been showing my heart rate at 140-159 when I know I am at 170 or higher... anyone having this problem?

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What sort of exercise are you doing?  That is kinda important.

I experience this on mine too, regardless of how tight it is on the wrist.  But I only experience this when I'm on a concept 2 ski erg or rower.  When running its fine.

Its an inherent problem with optical HRMs, if you're using a lot of forearm actiivty, what the optics are measuring isn't reliable.

[Ibeezzz]

I experience this when I am doing Insanity.

[AlejandraFitbit]

Welcome to the Community @Ibeezzz, @konkivo it's great to see you around and @dorketh thanks for stopping by. If you are having problems with your heart rate accuracy, keep in mind that heart rate reading varies depending on several factors like movement, temperature, humidity, stress level, physical body position, caffeine intake, and medication. 

I recommend checking our What should I know about my heart rate data? article, where you will be able to find some tips to improve your heart rate information.

Catch you later.