Search for DEXA/DXA scan facilities (low dose X-ray exposure). If you're referring to at home testing, devices exist that use electrical current to provide rough measurements (think body fat measurement capability on weight scales), but accuracy is inherently limited. An MRI is the only non radiation high accuracy measurement technique at this time.

Perhaps an opportunity to sell spare MRI time paired with ML for providing this product?

https://en.wikipedia.org/wiki/Dual-energy_X-ray_absorptiomet...

https://pmc.ncbi.nlm.nih.gov/articles/PMC5771660/

But DEXA isn't something a regular person who just visits a gym can afford on regular basis. MRI is out of the reach for same reason.

Is there any particular reason why at home device cannot be produced which is highly consistent and accurate?

My $15 weight scale from Amazon measures body fat and syncs to my phone

I’ve done DEXA and the measurements between the two were very close

>My $15 weight scale from Amazon measures body fat and syncs to my phone

Smartwatches like the Samsung Galaxy Watch 5/6, which use wrist based sensors to measure body fat, are convenient but not very reliable. They typically have an error margin of ±3–5% (e.g., reading 17.5%–23.0% for someone who is 20%) because they only measure your torso and are sensitive to your hydration levels. A 2022 study in Obesity Facts by Kim et al. found a mean error of 3.8% for Samsung's BIA compared to a DEXA scan. The U.S. Navy Method, which uses a tape measure for your neck, waist, and hips, is a cheap alternative but has a ±4–6% error margin (e.g., 16.0%–24.0%) due to inconsistencies in measuring and variations in body shape. A 2019 study in Military Medicine by Hinton et al. reported a mean error of 4.2% for this method in men.

Great question! That's what you need to solve for. Please let us know what you discover!

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