Ascent/descent completly wrong

Brad_Olwin

@oliver-zamberger This is the primary reason that incorrect altitude gain happens, I have had this happen due to skin (as in the example I posted) and because of wind. It is something you can learn to avoid. If you look at the profile in my post, it did not happen on the descent. I noticed the wrong ascent, knew what was causing this and kept the water bottle in my left hand on the descent.

I would argue that your incorrect data are likely due to similar issues, once you know what they are you can typically prevent it from happening.

Oliver_Z

@brad_olwin I ask myself: if the watch reacts this much sensitive on sweat, Wind, water etc… IT shouldn’t be used for outdoor Sports what it was made for

cosme.costa

@oliver-zamberger said in Ascent/descent completly wrong:

@brad_olwin I ask myself: if the watch reacts this much sensitive on sweat, Wind, water etc… IT shouldn’t be used for outdoor Sports what it was made for

I think that your self question is a little bit biased. @Brad_Olwin and others are posting the possible causes of your issue, and it is not brand dependant, it is technology dependant. That you have had a problem, doesn’t mean that the problem is general. I never had had this issue, nor my friends using the same watch, in general S9B tend to underestimate the ascent.

BTW this watch is definitively an outdoors watch, you only need to check all the professional athletes using it.

As you have said in your previous post you didn’t have these issues before, so something have triggered it, a new way of wearing the watch, some holes of the sensor covered or blocked, using poles…If I were you I would start cleaning the baro sensor (warm water and a very soft toothbrush), then a softreset, if this doesn’t work then a reinstallation of the firmware and if eventually still doesn’t works I would contact support, the sensor can be broken too.

Brad_Olwin

@oliver-zamberger I will add to @cosmecosta, who said it perfectly. My issue happened only because I was wearing the watch on my right wrist and had a water bottle in that hand. This has not happened when wearing on the left wrist for me. In total, I run 5-6 days per week all year. I have had this issue maybe 3-4 times since I owned the watch in 3 years.

isazi

@brad_olwin it happened to me twice in 2 years, and it was in days with gale strong winds. I could have avoided the issue by just wearing the watch under the jacket, but I didn’t

Pavlas

I had the same problem on the bike today. I used GPS+Glonass after a long time. But it’s true that I was wearing the watch on my right hand (to tan my left hand )

freeheeler

@brad_olwin
uh, this info needs to be censored
regarding sensor hole coverage I fully agree, I happen to see that frequently during workouts. My luck, very very rarely when MTB, skiing or skitouring
but I have never seen a wind effect on the sensor and I went right into a hail storm with my MTB the other day. Maybe the sensor holes orientation in relation to the wind direction is crucial.

MiniForklift

I have noticed that my ascent seems to be drifting further away from what I know it should be. A hill that I run up that always used to top out around 350m now reads around 330ish. The ascent that’s recorded by my training partner is also starting to vary quite a bit with him now always logging quite a few more metres of elevation than myself, for whatever reason I tend to grab a few more metres along the ground so my pace always comes out looking a bit better than his. I’m using an S9B and he has a top of the line Garmin Enduro that’s a little over a month old

For sure it could be his watch that’s out, although I’m leaning towards it being mine due to the fact that his is essentially new; plus when he started noticing the variations in our vert he recalibrated his (I can’t seem to find how this is done on the S9B or whether it’s even possible to do)?

Earlier this week there was a considerable difference of 48m/157ft in less than two hours of running…

TRAINING PARTNER

ME

I regularly sync to the app on both my phone and laptop and the latest updates are on so I’m a little miffed

freeheeler

@miniforklift
you can try to soak your watch over night in a glass of water, rinse it afterwards a d check how it records the alti on a hill you know well. if this doesn’t help a careful treatment with a soft toothbrush could be done.
it sounds like the sensor is collecting a bit dirt as you say it’s getting off over time

MiniForklift

@freeheeler said in Ascent/descent completly wrong:

@miniforklift
you can try to soak your watch over night in a glass of water, rinse it afterwards a d check how it records the alti on a hill you know well. if this doesn’t help a careful treatment with a soft toothbrush could be done.
it sounds like the sensor is collecting a bit dirt as you say it’s getting off over time

Cheers, okay will do this now as I have another run with my training partner tomorrow morning. Should be similar to the one we just did so will be interesting to see if improves things. Thanks

S.Pichi

i found this problem as well with trail running.
suunto app show 3638m as ascent , but when syncing this same workout to strva it show only 1083.

https://www.suunto.com/en-gb/move/usaratohm/60e0784b1dc2d5647adaa446
https://www.strava.com/activities/5568664347

isazi

@s-pichi how old is your watch? Have you tried cleaning the baro sensor?

S.Pichi

@isazi
my watch is S9B and yes i tried to clean the baro sensor already . this happened 2 time with me since last month.

Mister PYC

@brad_olwin

I was in doubt you is hidden, behind this book and spying on this forum secretly … humm … he is trapped … easy … was a guy wearing 2 watches …

Joke apart … how do you export the data … is it from the APP … honestly I feel stupid with this question because I could have spent more time on the APP to check myself … but just to catch if there are some additional SUUNTO apps that we could download on computer or if you “just” exported and then "EXCEL"ised it …

Yet I have not spent to many time on the APP …

SUUNTO forever.jpg

isazi

@s-pichi anything particular in those bad activities? Environment, clothing, whatever? Also, if you can share the activities people can give you some feedback.

Brad_Olwin

@mister-pyc said in Ascent/descent completly wrong:

@brad_olwin

I was in doubt you is hidden, behind this book and spying on this forum secretly … humm … he is trapped … easy … was a guy wearing 2 watches …

Joke apart … how do you export the data … is it from the APP … honestly I feel stupid with this question because I could have spent more time on the APP to check myself … but just to catch if there are some additional SUUNTO apps that we could download on computer or if you “just” exported and then "EXCEL"ised it …

Yet I have not spent to many time on the APP …

That’s a funny image. I almost always wear two watches, sometimes 3 or 4! The data are then synced to SA and if you have a Quantified Self account, you can merge activities. This will allow you to compare the behavior of multiple devices worn for the same exercise. Very simple.

Mister PYC

@brad_olwin
I just assemble it for the joke when I saw you were wearing 2 watches.
Good idea BTW so you can compare…
I will compare soon the compass of my SUUNTO 9Baro with the one my wife GARMIN 625 forrener, also the one of the phone … and finally my old mountain compass … Last time I did this (not with the last one) and I was surprised to see that I obtained 3 norths
So I would like to see versus the old compass which will be the most accurate …

Ambro Pac

Since I am having similar problems I will just replied this chat.

I have Suunto 9 Baro watch and I have problems with ascent/descent data.
It’s been a week experiencing this problem.
While cycling I have mount for my watch on handlebar. During cycling data for ascent/descent is false. After finishing the activity I use Suunto App for sync to see the datas and ascent/descent one is false. Since I hace Suunto app connected with Strava I see real information on Strava.

So my question now is what’s wrong? I used Suunto support and they advised me to re-install my Suunto App which I did and the problem still presist. Dunno why would falsa data be on while cycling already?

Someone had similar problems? What to do because it’s annoying…
See attached data.

Same activity
Suunto app:

Strava app:

Suunto app

Strava app

Brad_Olwin

@Ambro-Pac Hopefully this will help.
https://forum.suunto.com/topic/9960/more-faq?_=1713323274008

Mff73

@Brad_Olwin said in Ascent/descent completly wrong:

@Ambro-Pac Hopefully this will help.
https://forum.suunto.com/topic/9960/more-faq?_=1713323274008

in this case, the ascent in SA is far less than expected, so this point is not in the FAQ.
@Ambro-Pac , could you share Suunto links for those activities so that any of us could check and imagine a potential explanation ?