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IME wrist based optical hr is always a bit shit, and is especially sensitive to hand/wrist positions on bike. I have low blood pressure though, dunno how that might be effecting it.
yoshy-
its been quite steady for the last 2 years. i think the whole unit is on the blink as it has reset on it own 4 or 5 times and also turning off the heart rate monitoring on its own. its a shame as its been an ok watch for the last 3 years. i complained about it but it has been fairly steady. I just fancy trying a different brand
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As a good illustration of the limits of wrist based HR, I’ve just done this workout and my Garmin 235 failed to pick up the heart rate spikes and seems to think I topped out at 163 doing aerobic capacity stuff.
On another note, fuck me I’m unfit. Struggling to put out my old 20 min power for 50 sec intervals with 40 seconds in between.
Rich_G
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cheers all so many choices out there. my fitbit has totaly gone the heartrate had me at 200 bpm eating toast this morning. @andyp looks just what i was after. Really like the fenix 5 but way out of my budget . @Greenbank ta but would like to buy one with warranty. glws