Fake and incentivized reviews are a real problem on any large marketplace, Amazon included. Before we trust a listing's rating, we look past the star average and check a few specific things — and you can do the same in about a minute.
Look at the review timeline, not just the count. Open the reviews and sort by most recent. A listing with 2,000 reviews built up steadily over three years reads very differently from one with 1,800 reviews that all landed in a two-week window. A sudden spike is one of the more reliable signals of a coordinated review push.
Read a handful of the shortest five-star reviews. Genuine reviews tend to mention a specific detail — how something fit, a particular use case, a minor flaw alongside the praise. Reviews that are vague, generic, and enthusiastic ("Great product! Fast shipping! Five stars!") with no specific detail are more likely to be low-effort or incentivized.
Check whether the negative reviews get responses that address the actual complaint. A seller who responds to criticism with specifics (a fix, a replacement policy, an explanation) is a different signal than one who responds to every complaint with the same copy-pasted apology.
Cross-check the seller, not just the listing. The same seller account sometimes runs multiple near-identical listings with wildly different review counts. If one has 4,000 reviews and a nearly identical one has 12, that discrepancy is worth noticing.
None of this is foolproof — review manipulation gets more sophisticated over time. But a minute of checking usually tells you more than the star average alone.