How we research (and what we refuse to fake)
Everyone in this category says they tested twenty machines. We haven't tested any — and we say so, then show our work.
Most fitness-gear roundups lead with a testing claim: “we logged 150 miles on each treadmill,” “our team wore every tracker for a month.” Some did. Many can’t prove it, and a fair few didn’t. We’re not going to pretend to run a lab we don’t have. Instead, here is exactly what we do — and it’s checkable.
What we actually do
- Compile the published specifications.For every product we record the numbers the manufacturer publishes — weight range, motor power, deck size, battery life, sensors, footprint — from the listing or spec sheet, on a dated visit. Those dates are printed under each product.
- Do the arithmetic buyers care about. Cost-per-use, space and footprint math, weight-capacity versus user weight, battery-life-versus-features, and the true cost of a subscription over a couple of years. This is the work we found the incumbents mostly skip.
- Read what owners actually report.We synthesize verified owner reviews to surface the recurring real-world pros and cons — noise, wobble, app friction, durability — clearly labeled as aggregated feedback, never passed off as our own use.
- Cite the health and training facts.When we say something about heart-rate zones, muscle-strengthening frequency, or what a wearable sensor can and can’t do, we link the authority — the AHA, CDC, HHS, Mayo Clinic, FDA or peer-reviewed literature.
- Say what we can’t verify.When a maker won’t publish a figure, we print “Not published” rather than guessing. What a brand hides is information too.
The honesty stat
Products we claim to have tested: zero.That’s a claim we refuse to make, not a gap we’re hiding. It sits next to the question it raises — “then why trust you?” — and the answer is the list above: we compile the specs, run the numbers, cite the sources, and show the dates. That’s a weaker claim than “we tested everything,” and a more honest one.
Prices, and why ours expire
Every price on this site is pulled live from the retailer and stamped with the date it was checked. If our daily price check stops running, the numbers disappear and the button falls back to “Check price on Amazon” rather than showing you a stale figure. We never type a price into an article by hand.
How picks are chosen
We rank on published specs, footprint, and honest buyer fit — not on which link pays the most. Where a cheaper or simpler product is the better buy, that’s our pick, and we’ll say when a pricier option isn’t worth it. Commission never breaks that tie. The full independence rules are on our editorial policy page.
When we’re wrong
Specs change, models get replaced, and we make mistakes. If you spot a figure that’s wrong, tell us— we’ll check it against the source and, if you’re right, fix it and note that we did. Every roundup carries a “last updated” date and gets re-checked against the current model lineup at least quarterly.
Sources
- American Heart Association — Recommendations for Physical Activity in Adults — AHA's 150 min/week moderate aerobic + 2 days strength recommendation (accessed July 19, 2026)
- CDC — Adult Activity: An Overview — CDC on muscle-strengthening 2+ days/week, 8–12 reps, all major muscle groups (accessed July 19, 2026)
- Mayo Clinic — Exercise intensity: How to measure it — Mayo Clinic on light/moderate/vigorous heart-rate zones and how to measure them (accessed July 19, 2026)
- Cleveland Clinic — Fitness Trackers: Benefits and What To Look For — Cleveland Clinic on tracker accuracy and choosing by the metrics you care about (accessed July 19, 2026)