Did a first run with my new F5 today. Wore it as described, tight enough to stay snug but not too tight.
Was disappointed with the results, look at how it's way off at the beginning an end:
I also get constant dropouts (blank gaps) in the all day heart rate. I think there is two main reasons for this: first, the watch is so heavy that it moves around a little bit with every movement unless you strap it so tight your hand starts turning blue, and second, the optical sensor is too flat against the back of the watch and the wrist bone easily elevates the sensor a little causing light to get to the sensor and thus not getting an accurate measure.
It sounds like you have it too far down your wrist if your wrist bones are hitting and lifting it. You should be able to bend your hand all the way backward and forward without the watch shifting.
It sounds like you have it too far down your wrist if your wrist bones are hitting and lifting it. You should be able to bend your hand all the way backward and forward without the watch shifting.
I already wear it a little higher than what feels like a natural place for it, which is above the wrist bone. If I were to move it even higher I'd have to cut 15cm from all my shirtsleeves.
I actually wear the Fenix 5 much higher on the wrist than I did with the 235, which worked fine. So I think the flat sensor is not working as well with my wrist.
Mine has never worked. Paid £500+ For a watch that says my heart rate never goes above 111bpm. Waste of time. Contacted Garmin to be told ah well that’s how it is. Pile of crap!
