Suunto 9 baro very low elevation gain vs other brands

[freeheeler]

@fazel
this graph is from a hike with poles. Hence similar movement like ski touring. When I zoom in the graph is impressively less noisy. It was a dry and sunny day. I assume that raindrops and hence molten snowflakes in combo with a garment can influence the recording.
I did not check the total ascent as this activity has more ups and downs plus a bike ride at the beginning and the end (and a pause for getting wet shirt changed). But just the fact that the graph has less noise is interesting, at least for me

[fazel]

@freeheeler yes - your analysis seems good.

[isazi]

Today I experienced something similar to @freeheeler. I went running outside and it was snowing (first snow in a long while in Amsterdam!), and got 47/49 (ascent/descent) on a route where I usually get ~10 meters. Corrected elevation seems something like 12/13 (I did play a little bit with Runalyze).

The common pattern seems to be rain/snow. First time this happen to me.

Also, when I got home the altitude on the watch kept changing rapidly (-3 when I stopped the exercise, 0 when I arrived home, then -2 a minute later, +2 next time I checked, and so on).

Currently the watch is taking a warm bath to calm down

[freeheeler]

@isazi said in Suunto 9 baro very low elevation gain vs other brands:

the watch is taking a warm bath

you have to treat nicely what you love

[Oktan]

Hi again,
Sorry, but I’m still annoyed by this issue.
Both S9B and A3P on handle bar, recorded exactly the same ride: S9B recorded 539m elevation gain and A3P recorded 641m.
How could it be?

[A Former User]

@oktan said in Suunto 9 baro very low elevation gain vs other brands:

Hi again,
Sorry, but I’m still annoyed by this issue.
Both S9B and A3P on handle bar, recorded exactly the same ride: S9B recorded 539m elevation gain and A3P recorded 641m.
How could it be?

both calibrated at the begining of the activity?

[Oktan]

@andré-faria Yes.

[Dimitrios Kanellopoulos]

@oktan link. Please so I can compare.

[Mff73]

@oktan
I would bet on wind effect on S9B and lateral holes.

If confirmed by Dimitrios, try protecting holes with something like this

[Dimitrios Kanellopoulos]

@mff73 nah then the s9 would have had more. I suspect the opposite

[Mff73]

@dimitrios-kanellopoulos
Oh yes, I misread it.

[Oktan]

@mff73 We have people in Jerusalem with similar hats. I will borrow one

[Dimitrios Kanellopoulos]

@oktan

[Oktan]

@dimitrios-kanellopoulos I have only to Sports Tracker. Is that OK?

S9B:
https://www.sports-tracker.com/workout/meiroktan/606aa65b61acdf1859398452

A3P:
https://www.sports-tracker.com/workout/meiroktan/606aa7310efe4a45230f69d9

[Oktan]

@dimitrios-kanellopoulos

Suunto 9 Baro:
https://www.suunto.com/move/meiroktan/606aa65b61acdf1859398452

Ambit 3 Peak:
https://www.suunto.com/move/meiroktan/606aa7310efe4a45230f69d9

[Dimitrios Kanellopoulos]

@oktan the reason is because ambit 3 looks more jaggy in the data.

[sky-runner]

@dimitrios-kanellopoulos Ambit3 barometer has 1 meter resolution, Suunto 9 - 20 cm resolution if I remember correctly from looking at the FIT files - either that or Suunto 9 averages over 5 seconds which makes the altitude resolution look more fine grained. But that isn’t the reason Ambit3 has more elevation gain and Suunto 9 has less. These graphs don’t reflect elevation gain because if you simply add all changes on the graphs, that not what the watches report.

[Dimitrios Kanellopoulos]

@sky-runner yeah but adding all the changes even on QS that does not use those filters A3 has way more

[Antonino Coppolino]

@Oktan
I agree, I’ve been fighting since I bought it with support, from 2020. I joined this forum just to see if I’m the only one and if there is a solution. I have the 9 baro, I use it on a dinghy sail boat, they are always at unsuitable heights or -25m or +30. I’m thinking of selling it.