Fenix 5 Plus pace on treadmill incorrect

Former Member over 5 years ago

I recently bought a Fenix 5 Plus to replace my FR935. I have been doing daily treadmill runs and everything was fine until the other day when the pace being recorded by the Fenix was roughly 2min/km slower than the treadmill pace. I calibrated it after each run for the last 3 days and it’s still that 2min/km out.

To test it I wore both the Fenix and the 935 today and the 935 was spot on and the Fenix was nearly 2km short on a 6km run.

does anyone have any suggestions as to why the Fenix suddenly got so wildly inaccurate?

TIA

0 Rayjeffr over 5 years ago

If you aren't using a footpod, they only thing I could think of is that there may be times you're doing something with your arm other than swinging it. As far as I know the watch uses accelerometers to determine Pace without GPS so if you're running on a treadmill but holding onto the handrails you're Pace will read zero. So if you tested two watches on different wrists, you may have had different motion where one swung less than the other. This may seem like a reach so someone please correct me if I'm wrong it come in with some other ideas. I'd say if all else fails after treadmill calibration then maybe just reset the watch and see if that helps. Good luck with the issue.

0 3734358 over 5 years ago

Same problem here.

I have been running with a Fenix 5x plus 2-3 times per week (treadmill) for about 5 months and everithing was fine until few weeks ago, one day I ran a 10k in 29 min. It is obviusly wrong. From that day I have tried to calibrate many times and still gives me fastest pace than it should be.

I have read other Fenix 5 users with the same -recent- problem.

Hope they fix it in the next actualization.

0 Former Member over 5 years ago in reply to 3734358

I have the same problem. It started to happen after the firmware upgrade to 8.40. I also posted this problem in this forum:

https://forums.garmin.com/outdoor-recreation/outdoor-recreation/f/fenix-5-plus-series/171589/wrong-pace-value-on-treadmill-activity-after-8-40-firmware-update-on-fenix-5x-plus

Send an email to Garmin reporting this issue too