Altimeter inaccuracy

Not sure if you now, but you enable/disable altimeter readings grom the watch in Connect for each activity (not saying that this is a permanent solution)

Hi, after een activity you can turn of the hight measurement in via de webinterface of Garmin connect. But this only changes the outcome of that activity and doesn't correct the Endurance score, Number of Floors and all the other scores its measurements are used in.

Hope they recognise the Altimeter needs fixing and if that can't be done they give us an option to opt out of the measurement as a whole. We can use the GPS data, at this moment that's more reliable anyway.

If you change your altimeter mode to "barometer only", it interprets all barometric measurements as air pressure changes only, which disables the altimeter as you want. This is even explicitly stated in the message you get when you change the mode. Is this what you wish to accomplish?

Thanks, will read up and give that a try.
And hope Garmin looks into this problem, turning it off is still lame.

Hi. Have you tried the Trail running activity? I have completed a 105 km trail run with an elevation gain of 4,000 m. I ran all the time with a friend. I have a 955 solar and he has a Fénix 7 solar. The difference in height meters was only 12 m. However, when I run on a 200m oval track, my height meters increase, which of course they shouldn't (Running activity)

When you run following a predefined route, the altimeter recording is pretty accurate, since the altitude values are already part of the route data. I can confirm that this is pretty accurate, both in trail run or std. run activity profile. The issues appear when you do not run along a predefined route  and by default the watch estimates the altitude from scratch.

Hi everyone, i am also having this problem with a one week old watch so the sensor is not dirty in any way. In Auto mode the watch randomly assigns the air pressure variations to either an change in altitude or air pressure. This is also the case outside of activities as for example during sleep when there is absolutely no movement. Still the barometric value sometimes is shown as constant here while the supposed altitude is changing by up to 50m a over several hours. Obviously there is some bug in the algorithm that does the switching in the auto mode and needs to be fixed as soon as possible. Its really ridiculous that this has not been addressed for half a year now.

Exactly, i agree 100%. And we are talking about the premium sportwatch costing about 600€. 6 months is already like up to 25% of the watch lifetime. Its a pity! I'm very disappointed!

My runs always look like this (this is a round trip). The altimeter reading always starts too high and then drops.

I tried manual auto calibration uaing GPS and then the elevation reading reading says I am at 200 m, 199 m, 198 m, ... and it never stops dropping. At one point it says "calibration failed"