Is WachtOS 8.0 more or less accurate at running training?

[MJ0778]

Since I using WatchOS 8.0 at my training, I noticed a difference in the running distance between 100 - 250 m at a 10km run. I know, it's not much, but if you running at pace and knowing the points it's surprising.
I had this on my old Series 4, and now on my Series 6 after restoring from backup and after repairing and installing as a new watch. All configuration had the same difference in the distance.
Also the training notification is to much low, but that's another topic

 

[NME42]

As I am running with Stryd, I can‘t tell a difference.

Out of interest: does it record more or less distance than expected?
My experience with watchOS 6/7 was a slight overreporting of about 1-2%. If watchOS 8 reports 1-2% less than before, it would be fine.

 

[kc319]

Out of habit now I run with a Garmin on one wrist and an AW on the other. Up until OS8 the AW always recorded slightly more distance than the Garmin. It was only very small but since OS8 they’ve been identical.

 

[Shoo]

This article on Tweakers (a Dutch tech website) (sorry, the article is in Dutch as well but Google Translate is your friend) reviewed the GPS of nine different smartwatches amongst other things. Perhaps it is useful.

 

[MJ0778]

I run twice a week the same track and before watchOS 8 I had fixed points (+/- let's say 10m) where I had the same distance. But now the points are 100-250m later then before.

 

[dallison13]

Out of habit now I run with a Garmin on one wrist and an AW on the other. Up until OS8 the AW always recorded slightly more distance than the Garmin. It was only very small but since OS8 they’ve been identical.

I noticed this as well. My Garmin 945 and AW6 were identical on a trail run the other day, first time that has happened. And the tracks were great too. Not perfect but better than in the past.

 

[playaproved]

Mine was off the first couple of runs I did after I updated my Series 4 to Os8. I feel like the 3rd run I did was closer, but I’m pretty sure it was still off.

 

[MJ0778]

It's getting worse today. Nearly a month ago I had over 200 m more and its absolut the same distance. Last weekend I had a difference from 100m /10km. But this is strange!