Testing & review methodology
BOTH publishes reviews and comparisons only with clear methodology. We do not invent wear time, lab results, or long-term testing claims.
Before firsthand testing exists
Framework pages may compare published specs, manufacturer documentation, and independent validation literature. These pages state explicitly that firsthand testing is pending. Product picks remain inactive until partner URLs are verified.
When firsthand testing is published
- Exact product name and version purchased
- Purchase source and test duration
- Tester identity and use context
- Real photos, screenshots, or metrics where available
- Strengths, weaknesses, best-for / skip-if guidance
- Manufacturer claims separated from our observations
- Update log when retested or materially changed
Comparisons
Comparisons prioritize decision support over declaring a universal winner. Fit depends on form factor, budget, subscription tolerance, and what you will actually wear or use daily.
Supplements & recovery tools
Supplement guides prioritize evidence tiers, quality signals (third-party testing, label transparency), and practical decision trees — not miracle claims. Recovery tool guides rank interventions by evidence strength before price or aesthetics.
Corrections
Material corrections update the page, the last-reviewed date, and — after public launch — IndexNow only when the URL meaningfully changed.