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Body Fat % on Index S2 Smart Scale Seems Inaccurate

My new scale seems to give me a wildly different reading than my old one. I was previously using a Weight Guru's scale which gave me a body fat percentage between 18 and 19 percent which seems reasonable given my overall weight and fitness level. The new Garmin scale shows me over 26% body fat. Both scales show identical weight so what gives with the wild body fat numbers? 

  • I think given all the information on here its pretty piss poor that Garmin don't at least acknowledge they need to do something about it.  I'm not a programmer but I'd have thought at the very least the addition of some more parameters to the settings in Garmin Connect could make these more accurate. 

    I can get a more accurate BF% for free off of a website by entering 5 or 6 body measurements!  I've lowered my weight by 2lbs over the last couple if weeks but scales say this is all muscle and no fat which visually I can see is nonsense.  

    Come on Garmin there's consumers here losing faith in your products!

  • I'm late to this party, as I only just now saw on my Korr InBody report that Korr thinks my BF% is 22, while the Index 2 has consistently been telling me 26 and above.  My Garmin-computed Fitness Age is then seemingly artificially higher than it should be. I'm disinclined to manipulate the system by changing birthday, but for the record, my chronological age is 67 and BMI just shy of 26, neither of which should have anything to do with using electrical current to measure fat percentage.

  •  could you please add me to the list.

    Wish I had found this thread before I just wasted a lot of money, surprised it's not mentioned in any reviews. Same as others here, other than weight my measurements seem way off. My old iHealth Labs scales I've had since 2012 (led screen finally went, so have to use phone and manually upload to Garmin) - almost 10 years including cycles of bulking, marathon running, injuries, etc. Over that period with my weight ranging from 75-85kg, body fat 12-22%, muscle mass (not skeletal) 61-66kg, and bone mass 3.2-3.3kg - in ways that I would say mirrored how I was in appearance over the years.

    Recent back to back measurements on the iHealth scale vs Index S2: weight 82.1kg vs 82.0kg, body fat 17.7% vs 21.5%, bone mass 3.3kg vs 5.3kg. It's not just the body fat, but 5.3kg of bone mass would make that 6.5% of my total weight, a scientific anomaly given 3-5% is the norm, which unsurprisingly is 2.46kg - 4.1kg.

    As a multiple Garmin device user, some acknowledgement of the issue and resoltuion would be great. I'm unsure whether a fix could be on the way and I wait it out, or just return them.

  • I agree entirely Utterly useless and a complete rip off. So bad for the Brand

  • Just calculated my bone mass percentage and it’s coming out 6.2%-6.5% over the last couple of weeks.

  • Why is Garmin still selling? Knowingly that it is not working properly?

  • What gets me is the total lack of engagement from Garmin. What is the actual point of this Forum if Garmin have no engagement at all? Terrible brand - Permanently off to wahoo for me.

  • Why is Garmin still selling? Knowingly that it is not working properly?

    Garmin thrives on selling things.
    I think that a new scale has long been in the works. Hopefully then a branded one from one of the professional manufacturers like Tanita, Beurer, Withings, ...

  • 100%! just sold Fenix 6 and S2, don't want to use this brand anymore. AW7 checks all the boxes for me, will also get wahoo bike unit.