How we test and rate products
Every beforeknow review follows the same four-stage process: shortlist on evidence, verify the spec sheet, stress the weak points, then score against a fixed weighting. Affiliate links pay for the work, but they never decide the outcome.
1. Shortlisting
We start with what people are genuinely choosing between at a given price, pulled from marketplace bestseller movement, retailer stock patterns and reader questions. A product with strong marketing but no real-world traction does not make the list.
2. Spec verification
Marketing pages and retail listings disagree more often than you would expect. We cross-check every number against the manufacturer's own datasheet or regulatory filing. Where a claim cannot be verified, we mark it as unconfirmed rather than repeat it.
3. Stress-testing the weak points
Most products fail in predictable places: thermal throttling on thin laptops, battery health collapse on cheap wearables, hinge and port wear on anything portable, coating wear on kitchen appliances. We deliberately look for the failure mode first, then see how well the design defends against it.
4. Scoring
The rating out of 5 is weighted, not a vibe:
- Performance
- 30%
- Build & reliability
- 25%
- Value at street price
- 25%
- After-sales support
- 20%
Sustained, not peak. What it does on day 200.
Materials, tolerances, common failure points.
Scored against what it actually sells for today.
Warranty terms, service reach, parts availability.
Corrections policy
If we get something wrong, tell us at hello@beforeknow.com. Confirmed factual errors are corrected within 48 hours and the page carries a dated update note. We do not quietly edit a verdict without saying so.