Difference in height measurement between Fenix 5 and Forerunner 935

Barometer "absolute" accuracy is largely a factor of the offset in elevation (if any) at the start of any activity and, if there is, any calibration done - either manual or automated.

Which comparisons are you referring to so we can better examine the respect profiles.

I would be amazed if one or the other was truly "better" after doing above.

Example

Here for example. Difference of 20 meters.

http://www.mygpsfiles.com/app/#BhzEsqxU

(this comes from the gps / hrm accuracy thread on forerunner 935 forum.
I also have seen other examples.

So pretty much as I said - the elevation profiles look more or less identical. There is just a 20m offset between the two.

No idea from that alone which has the more accurate baseline starting elevation.

If whoever did this test, runs that one again but calibrates both devices before they start it looks like similar results would be obtained.

So pretty much as I said - the elevation profiles look more or less identical. There is just a 20m offset between the two.

No idea from that alone which has the more accurate baseline starting elevation.

If whoever did this test, runs that one again but calibrates both devices before they start it looks like similar results would be obtained.

Ok thx. At least no barometer problems with the Forerunner 935.

I have seen some of your tracks on Strava.

Is this forerunner 935 one of the best Garmin watches for gps accuracy of the last ten years? (the forerunner 630 was ok too).

Strange that there is such a big difference in gps accuracy between the Fenix 5 and the Forerunner 935, both same watches, just different case.

I would love to buy the Fenix 5, but I knew there would be gps issues again.
So I will buy the Forerunner 935 I think.

> Is this forerunner 935 one of the best Garmin watches for gps accuracy of the last ten years?

From what have seen so far the 935 does as well as other Garmin Forerunner watches have used in recent years. Basically it means it is "good enough" for my purposes but no consumer GPS will ever be "perfect" and you are going to be eternally disappointed if you expect that.

Never had a Fenix so hard to personally comment although I do sometimes detect an expectation level mismatch with some commentators on GPS accuracy with the Fenix devices.

GPS accuracy is one of those things that isn't really a function of the RRP of the watch either.

treadmill elevation changes?

Speaking of elevation... check out this treadmill activity: https://connect.garmin.com/modern/activity/1670219223

Shows a rise and fall of around 30 feet... I swear my treadmill is stationary in my basement. :confused:

Speaking of elevation... check out this treadmill activity: https://connect.garmin.com/modern/activity/1670219223

Shows a rise and fall of around 30 feet... I swear my treadmill is stationary in my basement. :confused:

Could be partly temperature. But also likely just air pressure changes, as that's all BP altimeter is really measuring. If your furnace turned on, that could have an impact. If you turned a fan on that was hitting your hand differently, that would probably change things. And could have actually been the actual weather changing the pressure. This is the big drawback for BP altimeters. They detect small changes in air pressure which is great for constant pressure/temperature situations, but don't directly have a way to verify actual elevation. That comes from calibration, either manual or automatic from GPS.