How We Research Fitness Trackers

We want to be completely upfront about how this site works, because trust is the whole point.

We do not claim to lab-test every device we write about. We’re a small, independent team and we don’t pretend to run controlled hands-on tests we haven’t done. Instead, we do something we think is more honest and, frankly, more useful: we read the reviews so you don’t have to, weigh the specs that actually matter, and tell you plainly what each tracker is — and isn’t — good for.

Here’s exactly what that means.

What we base recommendations on

The specs that matter for the job. For each use case we focus on what actually decides the outcome — case size for small wrists, water resistance for swimming, GPS and battery for cycling, fall detection for seniors, and so on.
Professional reviewers’ consensus. We read across reputable, hands-on reviews (publications and established reviewers) and look for where they agree and disagree.
Verified-owner reviews. We pay close attention to patterns in real-world owner feedback — the recurring praise and the recurring complaints — across retailers.
Manufacturer specifications and official guidance. For facts like battery life, water ratings, and feature support (and we note when those claims are best-case).

We then synthesise all of that into a clear, opinionated recommendation, and we say who each pick is for.

What we weigh

It varies by guide, but in general:

Accuracy (heart rate, GPS, steps) — and we’re honest that wrist heart rate is unreliable for high-intensity training, where a chest strap is better.
Battery life — real-world expectations, not just the headline figure.
Comfort, size and fit — because the best tracker is the one you’ll actually wear.
App quality and ecosystem — including which phone it works with and what sits behind a subscription.
Value — features per dollar, and whether you’re paying for things you’ll use.

What we don’t do

We don’t claim hands-on testing we didn’t perform.
We don’t take payment for coverage or rankings. There are no “sponsored” placements dressed up as recommendations.
We don’t present wellness features as medical devices. ECG, SpO2 and any blood-pressure or body-composition features are wellness indicators unless specifically certified, and we say so.

Health features and disclaimers

Some trackers include health features like ECG, blood-oxygen or body-composition readings. We report these as wellness indicators, not medical diagnostics. For anything health-related — and especially if you have a condition like a heart implant — please follow your doctor’s advice. See, for example, our guide on wearing a fitness tracker with a pacemaker, which is sourced from the FDA and heart charities.

How we make money

Many of our links are affiliate links — mostly to Amazon, as an Amazon Associate. If you buy through one, we may earn a small commission at no extra cost to you. That’s what keeps the site running. It does not change which products we recommend or what we say about them. See our full disclosures.

Keeping things current

Wearables and their software change constantly — models get discontinued, integrations change (for example, Fitbit moving to Google accounts), and prices move. We date our pages, update them, and flag when a product is older or superseded and point you to the current equivalent. Prices in particular change often, so always check the live price before buying.

Found something wrong?

If we’ve got a fact out of date or made a mistake, please tell us — we’d genuinely rather fix it. Use our contact form and we’ll take a look.

FAQs

Do you physically test every tracker?
No, and we won’t pretend to. We research the specs that matter, the consensus of professional reviewers, and verified-owner feedback, then give an honest, clearly-reasoned recommendation.

Are wrist heart-rate readings as accurate as a chest strap?
For steady efforts they’re usually “good enough,” but they can lag or miss peaks during intervals and weightlifting. For accuracy, a chest strap (like the Polar H10) is better — we say so in the relevant guides.

Can wearables measure blood pressure?
Only a few offer estimates, and they aren’t medical-grade. Treat blood-pressure and similar features as wellness indicators unless specifically certified.

Do brands pay for coverage or better scores?
No. We don’t accept payment for coverage or rankings, and affiliate links never change our recommendations.