for an ad-free Fetcheveryone experience!

Garmin

4 lurkers | 220 watchers

Cog Noscensme AHA Sep 2020 5:53pm, 10 Sep 2020 662 posts	0 Cog Noscensme AHA I have a Fenix 5 with optical HR and find it useless at most activities including walking. Walking uphill on Tuesday was giving me a reading of 55bpm and I couldn't make it any higher by tightening the wrist strap. I use a Tri HRM for running and it's the best and least chafing chest strap I've found.
Badger Sep 2020 6:21pm, 10 Sep 2020 12,762 posts	0 Badger I have an HRM-Run, the red type that looks like a HRM-Tri, and agree, it's the least chafing design I've ever had. I tested my F5 once or twice recording a chest strap in parallel with the optical and the match was very good; then on the other hand there was the time I was running up a steep hill half way through an eyeballs out parkrun and it reckoned I was chillin' in Z2. Only really used it when I'd forgotten straps.
SjohnA Sep 2020 8:03pm, 10 Sep 2020 86 posts	0 SjohnA I find my optical accurate about 80% of the time on my Fenix 5 Plus. But to be honest, that makes it useless for anything serious as you can never be sure it it correct on any particular run. Now and again I will run intervals or hills and it will pick up the changes perfect - just a shame it isn't like that all of the time.
Gooner Sep 2020 8:07pm, 10 Sep 2020 18,482 posts	0 Gooner My 245 is reasonably accurate when running/walking/normal life if it's just a little tighter than comfortable but it does fail rather miserably on the bike, it takes and age to settle to the right range, starting too low but then measure high for the rest of the ride. I assume it's because of the angle of my wrist and the movement between hand positions. I've just took the plunge and ordered a 530 bundle with hrm strap though so I'll be able to have direct comparison in a week or two.
Totriornottotri Sep 2020 8:08pm, 10 Sep 2020 902 posts	0 Totriornottotri My Fenix 6x solar is excellent for HR most of the time except for running after swimming when it just goes almost maximum! Strongly looking at HRM run and tri as the HRM run v1 I have isn’t reading HR correctly despite showing the run dynamics.
larkim Sep 2020 8:22pm, 10 Sep 2020 11,886 posts	0 larkim On the RA spreadsheet - yes, linked though formulas in the sheet. You need to make a public RA page, then use the =importhtml() function in GoogleSheets to dynamically link to that data. Sounds tricky but not really that hard. Not sure if your can see the formulas in the sheet I linked to, let me know via fmail of you want more access so you can have a play.
Cog Noscensme AHA Sep 2020 9:06pm, 10 Sep 2020 663 posts	0 Cog Noscensme AHA On the HRM that isn't reading right. Have you tried a battery change? My HRM Tri goes a bit wonky in the run up to battery failure.
larkim Sep 2020 10:25pm, 10 Sep 2020 11,887 posts	0 larkim Ref my VO2Max being stable / consistent. I put that down entirely to the Polar OH1+. With the HR strap the odd drop out or random values due to t shirt static etc screwing up the raw data. Consistent HR data validity means the calc is robust. I don't know if the VO2Max calc is done differently on the newer watches of course. I still find it hard to believe that my watch even does the calc!
SPR Sep 2020 10:40pm, 10 Sep 2020 31,257 posts	0 SPR Larkim - Strap isn't a variable for me, I used the same strap with the 230.
SPR Sep 2020 10:46pm, 10 Sep 2020 31,258 posts	0 SPR I don't think the calc is done differently though, I just guessing they're using a bigger range of data than they previously did.