Inaccurate vo2max result.
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 Hi! I am a 32 year old male in fit condition. For some reason my suunto 5 gives a health age of 63. I do sport 5-6 days a week wherefrom 3 are hikes of 5-6km and occasionally 1 time a week 3-4x100m uphill run (max speed) + 2 times gym a week. So if i would be out of shape I wouldnt be able to do this much sport. What is wrong? 
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 @seboey I had the same question a few weeks ago. My S9 measured VO2max level is usually considered as ‘Fair’ if I look at for instance Finnish Ministry of Health tables. However, Suunto is using Firstbeat algorithms and their tables are not so kind. Someone answered me this: Quote: 
 AFAIK Suunto uses Firstbeat algorithms in S9 for measuring VO2max, here their reference on Fitness levels
 https://www.firstbeat.com/en/wellness-services/wellness-professionals/individual-wellbeing/fitness-level/
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 @seboey Make sure your heart rate zones (and the rest of your body metrics) are correctly entered and that your heart rate is accurately measured during the activity. 
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 And the results get more accurate over time when your watch gathers more data. I’m no longer considered 79, now my S9 thinks I am 74!  
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 I would also add that hiking/walking activities will probably spoil vo2max measurements, as in former altitude gain isn’t taken into account and in the later hr doesn’t change that much. 
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 Everything others said, plus the VO2max is really running centric. If running, especially endurance, is not your thing, don’t really pay attention to the numbers. 
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 thanks to all for the fast response! 

