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I had a sudden drop in my VO2Max, as calculated by my Apple Watch 3, of 10 points, overnight! Picked up this question thread from early 2020 when similar occurred to others, but this has now gone silent. Have all those who flagged the issue found a permanent fix? If so can you share this please? Thanks
Had my Series 6 for one week. My readings have gone from 39 to 32 to 30 to 31 to amazingly today to 21.
Yes I’m 68 years old but 41-39 has been my reading on my last watch for 3 years. AM I DYING or is there a major problem?????
Had my Series 6 for one week. My readings have gone from 39 to 32 to 30 to 31 to amazingly today to 21.
Yes I’m 68 years old but 41-39 has been my reading on my last watch for 3 years. AM I DYING or is there a major problem?????
Mine has dropped to 18 despite working out daily lol. It was been dropping steadily since one of the updates. Obviously Apple doesn’t know how to fix despite all the complaints. This is an ongoing issue!
I have the same issue! Just when I was patting myself on the back for the 'High' average level for my age, my Cardio Fitness went from an average of 40 to 28 in a matter of days (despite NO change to my fitness schedule - brisk walk of 10km/6.25 miles in 95-100 minutes). And the funny thing is that it is still dropping! Can we have Apple Support address this issue, please! It has to be some software issue. Here are a couple of screen shots:
I face the same problem. I compared the data in detail and noticed the changes is "Medications That Affect Hear Rate". Go to the Watch App -> Health -> Health Details. Then uncheck the Medications That Affect Heart Rate.
I'm glad to know I'm not alone with this weird random overnight drop in VO2 max. If Apple can't figure this out, they should drop the feature until they do. None of the fixes suggested work. The instructions at "Set Up Cardio Fitness" do not work on the iPhone 12 mini (see my post from March 26), and no one from Apple has responded with updated instructions. Not that I think that's likely to help.
I wonder if it's part of planned obsolescence for this generation of watches. Has anyone with this problem upgraded to a newer watch recently? I can't afford to chuck a perfectly good one (in most ways) just to solve the VO2 max glitch.
Did you have a birthday the month that it changed? I think the algorithm that calculates VO2 max reduces your VO2 max as you get older.
You are right, this sort of feedback from a fitness app is massively unhelpful and disincentivizing if not darn right depressing. Particularly if your activity level hasn’t decreased sufficiently to justify the drop. But it is KEY to remember that this is just a tool and the real truth is in how you feel. Walking is great and if maintained will help maintain your health. If you enjoy, keep doing it. Increasing the intensity will increase the health benefits. Steadily speed up you pace over time. Walk the same distance in a shorter time. Introduce a hill or two into your walk. Extend your walk, but at a quicker pace. The more you raise your heart rate during exercise, steadily and within limits, the greater the health benefits. Don’t be discourage by a faulty and defective health monitoring tool! Your health is far too important. Good luck.
Apple needs to resolve this issue!
OMG and here I was making doc appointment. No lie. I have health issues and this scared the **** out of me. I jog four miles a day and went from nearly 40% to 26% in one day. And it has never risen, ever. I thought it was my lungs, or heart. I’ve had labs done, everything. OMG. This thread has given me such peace of mind!
Nothing I have tried, most recommended by Apple, seems to correct the error. Good luck.
there is something wrong with apple's system period end of conversation...
My drop has been even more dramatic, from 45 one day to 31 the next. I was one the range of 40+ for the first three months after purchase and set up) and from 30.5 to 31.5 since. I have done all the updates, checked all the settings. Nothing. My resting heart rate has stayed in the mid-40s and my workouts are no different now than they were previously. It's a glitch--I don't know if I bought a lemon or if it's product-wide.
Hi Anthony,
Thanks for contacting the Apple Support Communities!
We understand that you're seeing unexpected results in your VO2 max with your Apple Watch. To start, we want to be sure that Cardio Fitness settings are correct as outlined here: Set up Cardio Fitness Levels
If everything looks good there, we also want to be sure that your watchOS and the iOS on your companion iPhone are up to date.
Update your iPhone, iPad, or iPod touch
We also want to be sure that Power Saving mode has been disabled: Use the Workout app on your Apple Watch
We hope this helps.
Cheers!
I got the same problem… I see that my problems started to appear on may 11th. On may 10th I contacted Apple support because my Apple watch doesn’t suggest new move goals on Mondays. I unpaired the watch and was told to set it up as a new device. Which I did. This is when the vo2max problem started. I’ve done four runs these days, and I did the latest one today, may 14th. Today’s run was a very slow run with low and steady heart rate, not unlike the one I did when I first calibrated it when I bought it. I really don’t want to unpair and set it up again.. it’s tedious having to set up everything yet again….
Haha :) Mine is slowly getting back to the level it was before this happened… will still say I’m below average for at least two more sessions… the update to iOS 14.6 and watchOS 7.5 went smooth! Let’s hope it stays like this for a while! Still having problems with getting a move goal suggestion on Mondays though, disabled the Sleep schedule after reading some reports saying that it will fix it.. anyone else experiencing that bug?
I’m afraid this advise did not assist. My Vo2MAX is still reads around 36 when previously it was 42. 14th Feb it was 42 and 15th Feb it read 32! Since then it has slowly increased to 36 where it has stopped. I continue to walk for 40-50 mins/day and cycle 3x per week. Averaging 60 miles cycling per week for the last 6 weeks. Have lowered the intensity this week, but the Vo2MAX has dropped 0.2 rather than increased? My resting heart rate has dropped consistently since the beginning of Feb. Perplexed!
Sudden drop in VO2Max recorded on Apple Watch
