HR during swimming with Fitbit Charge 6

[jdenver9]

Are you happy with the HR measured by Fitbit when swimming? Do you think that is accurate compared other device, if you checked and compared? I am not using the exercise app, but using exercise auto recognition and edit the exercise according to the start and end of my workout and changing the meters swam. And my strap is very tight on my wrist. During my workout I do sometimes a kind of HIIT, one lap as fast as I can in free style followed by an easy one lap on back. My HR goes up at 150 and I feel it because if feel my heart pumping and goes down on 110 after recovery and again for eight time. And I was thinking if the number are close to reality in order to check my progress, but also to find out if I do not push too hard because I have a mild hypertension. My max HR is 166. Thanks.

[MattRoxx]

the Charge 6 uses an optical scanner so accuracy probably goes down when your skin is wet and there's a layer of water between the sensor and skin. If the pool has one of those huge pace clocks on the deck you could manually take your pulse at the carotid artery and compare it to the Fitbit measurement. Sometimes I'll go and move the angle of the pace clock so I can see it better from the shallow end, no one has every complained, I don't know if anyone else even looks at it since most 'serious' swimmers use some kind of watch to track their stats. 😊

 

[Triletics]

@jdenver9 I compared it several times with Garmin HRM-Swim chest strap and was surprised with results. Accuracy good enough (unlike for other activities like running).

@MattRoxx it's always good to know how to read pace clock 👍 Now, I'm used to using watch so pace clock isn't so useful and recently I tried smart goggles (connect to watch and HRM) and that is a game changer 😁