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Jan 2022
7:31am, 26 Jan 2022
1,826 posts
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Welshpoppy
I have Road ID strap on other hand .
I like the nato strap will take a look later .My new strap I got of ebay is much better than original as I would get a rash and have to swap hands till it healed.
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Jan 2022
11:57am, 26 Jan 2022
3,539 posts
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Groundhog
I have a new Garmin Instinct solar which should measure altitude via barometric pressure (I think). To check out out I did a walk 3 times down and then back up the same hill. It recorder the elevation at the top of the hill at different values that drifted upwards as the walk went on. Anyone have any ideas what's going on?
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Jan 2022
12:02pm, 26 Jan 2022
41,198 posts
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HappyG(rrr)
Was weather changeable? If pressure increases (decreases) it thinks you are higher than you are.
If you repeated it 3 times, but with a stop and start new activity and wait 30s before moving, I think that's how my VA4 calibrates the pressure at start of each activity?  G
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Jan 2022
1:07pm, 26 Jan 2022
3,540 posts
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Groundhog
This was one continuous activity over less than 25 minutes. I'm not sure the weather was changing that much during the activity and it's such a short time period.
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Jan 2022
1:10pm, 26 Jan 2022
3,541 posts
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Groundhog
The only other thing of note was the steepest part of the hill was under trees, while the rest was more open on a road. the turn around point at the bottom was exactly the same each time. The bottom to the top of the climb is only 250m.
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Jan 2022
1:11pm, 26 Jan 2022
4,331 posts
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StuH
My elevation on the Fenix5 often does that.
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Jan 2022
1:16pm, 26 Jan 2022
870 posts
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Bowman 🇸🇪
My 945, is always spot on, i cant remember any time it has gone bonkers.
I wonder if there are different altitude meters in the latest watches?
Today i had som shifting whether and gusty wind keep changing, altitude spot on, both on the way out and the way back.
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Jan 2022
1:21pm, 26 Jan 2022
1,033 posts
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Sam Jelfs
What's the temperature doing at the same time? I just did a dead flat run, and unless our house is now 5m higher in the air than it used to be there is a bit of drift but it seems to correspond with the temperature drift.
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Jan 2022
1:26pm, 26 Jan 2022
872 posts
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Bowman 🇸🇪
Theres also a few ways you can set the calibration, maybe different with different watches. Checkout Garmins online manual for your watch and se if theres anything you can do there.
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Jan 2022
1:29pm, 26 Jan 2022
3,542 posts
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Groundhog
Apparently it has 3 settings, altimeter, barometer and auto. They Alt and bar settings both measure atmospheric pressure. In altimeter mode it considers all pressure changes to be due to change in altitude (use this in hilly activities) and in barometer mode it assumes all pressure changes are due to weather (use when it's mostly flat). It can do auto when it's supposed to guess what you are doing and uses a combination of barometric pressure and GPS. I'm interpreting what the manual says. I'm off for a short hilly walk to see what it does in Altimeter setting.
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