Hi, I'm Alex. I test this stuff so you don't have to guess.
BodyCompLab started with a stuck bathroom scale. Mine. Three months into a training plan the number would not move, and I had no way to know whether the plan was failing or the scale was just answering the wrong question. It turned out to be the second one. This site exists so you can figure that out faster and cheaper than I did.
Who writes this site
I'm a fitness-tech enthusiast in my forties. Not an athlete, not an influencer, not a doctor. I lift a few times a week, I cook at home most nights, I lose the same stretch of belt hole and find it again, and I have spent years buying gadgets that promise clinical precision and deliver guesswork. At some point I started documenting the testing properly, and BodyCompLab is where that documentation lives.
Two things I want to be upfront about. First, Alex Carter is the byline I write under, and everything published under it comes from one reviewer with one set of testing notes: the same body, the same bathroom, the same skeptical mood every morning. Second, I have no medical credentials of any kind, and this site never gives medical advice. When an article touches health topics, the advice is always the same: take the data to a professional.
How I test
The method is boring on purpose, because consistency is the whole game with body composition tools:
- Weeks, not unboxings. Devices get daily use for six to eight weeks minimum before a review goes up. My Hume Body Pod review took 56 measurements over 8 weeks. The Hume Band review took 42 nights of continuous wear.
- Consistent conditions. Scale readings happen at the same time each morning, after the bathroom, before coffee. That is the only honest way to judge a BIA device, because hydration moves the numbers on all of them.
- The free tier first. I run every app on its free plan for most of the test, because that is what most buyers will actually live with. Subscription pressure gets reported as the con it is.
- Claims get checked against reality. Advertised battery life gets timed. Step counts get compared. "Within 3% of DEXA" gets labeled as what it is: a company claim, not independent validation.
- The flaws go in the review. Every device I have recommended has a list of things that bugged me, published right next to the praise. If a review here has no cons, I have not written it yet.
When I have not personally lived with a product, I say so in plain sight. Comparison articles and buying guides mark clearly which devices got weeks of hands-on testing and which were evaluated on specs, policies and aggregated owner feedback.
The testing log so far
| Device | Testing time | Status |
|---|---|---|
| Hume Body Pod | 8 weeks, 56 measurements | Still in my bathroom · full review |
| Hume Band 2.0 | 6 weeks, 42 nights | Still on my wrist · full review |
| Withings, InBody, Renpho, Whoop, Oura, Garmin | Specs, policies, owner feedback | Compared, not lived with · declared in each article |
How this site makes money
Affiliate links, and only affiliate links. No ads, no sponsored posts, no paid placements. If you buy something through a link here, the seller may pay us a commission. It costs you nothing extra.
Currently our only affiliate relationship is with Hume Health. That is worth knowing when you read our reviews, and it is exactly why the reviews list every flaw I found: app sync failures, subscription upselling, battery life that trails the advertised number, step counts that run low. A recommendation you can check against the cons is the only kind worth publishing. No brand sees an article before it goes live, and no brand has ever paid for a verdict. Full details in the affiliate disclosure.
The lines this site does not cross
- No medical advice, ever. Wellness devices are not medical instruments, and nothing here replaces a professional. Health-adjacent articles carry that warning visibly.
- No invented ratings. The scores on this site are my editorial scores from my own testing. We never publish fake user ratings or invented review counts.
- No precision theater. BIA scales estimate. Sleep staging estimates. Every article says so, even when the marketing does not.
- No silent updates. When an article changes in a way that matters, the date at the top changes with it.
Contact
Questions, corrections, or a device you think deserves the full treatment? Write to Galaxy-trade2000@gmail.com. Corrections get priority; I would rather fix an article today than defend it tomorrow.