Have you ever wondered just how accurate your Garmin is at predicting your V2 max? Well, you’re going to find out because this weekend I headed to the lab to test it against the real thing. The test was quite simple. It was balls to the wall and make sure you ride until exhaustion. The spanner in the works though is it’s not just ride as hard as you can until exhaustion. What happens is the power gets harder every minute. When you really are dead at the end, then you’ll get a whole bunch of numbers which equate to your V2 max. Well, it turns out that my Garmin was absolutely bang on. The Garmin SE 60 was matched exactly by the cycling V2 max test in the lab. So, do you know what? Big up Garmin.

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43 Comments

  1. And here I am: Garmin VO2max of 53 and a real one of 47 and running marathons around 4hr

    Compared to other people in the comments I feel like a potato.

    VO2max is not relevant when doing endurance

  2. I think Garmin VO2 max is pretty accurate if your primary exercise is cycling or running. The Garmin doesn’t track heart rate very accurately for certain exercises. I do burpees and the Garmin typically low balls my heart rate during my burpee workouts. It shows that I need more high aerobic and anaerobic training but it doesn’t accurately measure me when I am actually in those zones. The fitter I am getting the lower my VO2 max goes. My resting heart rate has dropped from 60 to 50, my hrv has gone up about 15 points but my VO2 max went from 41 to 39. Maybe I need to do a threshold run to calibrate my vO2 max better.

  3. My v02 max is at 52 right now on my garmin. Realistically, what would i need to do per week(s) to increase it to 60??? I run ans cycle, for triathlon

  4. I have many doubts about my VO2max value, my Garmin tells me 60, I'm 50 years old and smoke 10 cigarettes a day, and I only cycle 10,000 km a year, i want believe in your test!!!

  5. My Garmin VO2max goes down each week when I do several long runs at altitude.
    Always goes up when I travel to the coast.
    Looking forward to seeing it shoot up by 4 points as soon as I go for my first easy run in Singapore 🤔

  6. I love guys comments here. Sprints, obesity, cigarettes. Athletes willing to have higher Vo2max. Not fit people claiming they doubt their Vo2max is actually high.
    Girl here, with severe periods (intensive bleeding for a week, fyi). I don't drink, don't smoke, work out all my life, 40+. After periods Vo2max drops by 3-5points, after a steak (meat) Vo2max spikes. After iron infusion Vo2max spikes like crazy.
    Even if you are not fit but your iron/ferrum/hemoglobin/ level is high you will still have high Vo2max even if not fit. Cause it's those red blood cells delivering oxygen to your muscles, organs. #askawoman

  7. The VO2 max estimate is dependent on other variables – so it depends on factors like how you have determined your max HR. If you just trust Garmin's algorithmically determined max HR or you just use a formula – your VO2 max estimate is essentially an estimate based on an estimate. If you go run hill repeats until you find your max HR and set it (and turn off auto "detection" for max HR) – your VO2 max estimate will be more accurate.

  8. I didn’t do any test but my garmin said my vo2 max is 66 which should be good but I don’t consider myself super athletic even if I train every day

  9. To obtain 'Cycling' VO2max in the video, you need a power meter besides the watch, Do you have a access to a power meter when you cycle regularly?

  10. I've done the same, and they exactly matched (56 before I got serious at running, and 65 in peak fitness just before I got Long Covid). I think perhaps when it differs is if people don't do what the watch expects. As a runner, I trained in a classical and predictable way, so the watch knew exactly what my VO2 Max was.

  11. Is that the 965? I have that one, so its pretty accurate then or is it also from person to person mine sais 68 but I don’t want to do a test bcs I know I am going to be dissapointed of its below 75

  12. Mine can’t be accurate (not cycling). Mine says it’s 59 and I’ve been running for a year. My 5k pb is 21:54. How can I possibly have a superior VO2 max? Yeah I’m fit, but I’m not THAT fit.

  13. So, this is one case study where it happened to match. .how accurate is it on average for 100-1000 people of different stages in their fitness?

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