How this page was put together
Specifications come from the manufacturer's own pages. Everything else, the verdicts and the catches, comes from what owners and reviewers keep saying across forums, review sections and other comparison pages.
Nobody here bought six of anything and ran it through a lab. What these pages offer instead is the aggregate: a complaint that comes up over and over is worth more than one household's afternoon, and it is the thing no manufacturer page will tell you.
Where a page ranks its products, that ranking is our opinion rather than a score. Nothing here carries a star rating, because a rating claims a measurement and we have not made one.