Samsung's Galaxy Watch Ultra 2 has a bug that can hide a popular fitness score from some runners. The score is called VO2 Max. Runners who track their workouts on an outdoor track may not see the number at all, according to a report from Android Authority.
What the score is
VO2 Max is a score that estimates how well your body uses oxygen. Many runners follow it as a rough sign of fitness. A rising number can suggest training is paying off. A missing number leaves a gap in that picture.
Who it affects
The problem centers on runners who use the watch on an outdoor track. If that is how you train and you rely on this score, you may see blank spots in your data. The material does not say whether other kinds of workouts are affected.
What happens next
Samsung has said a fix is coming. The report gives no release date, so it is not clear how long the gap will last. It also does not explain what causes the bug or whether any data will be filled in after the update arrives.
What to do
For now, there is little to do except expect missing numbers if you run on a track. Keep logging your workouts as usual. Watch for a software update from Samsung and check your watch's update options when one is announced.
The takeawayIf you run on a track with a Galaxy Watch Ultra 2, expect missing VO2 Max data until Samsung releases its promised fix.