What it looks like

A product with 4,000 ratings and an average of 4.7. Scroll the five-star reviews and they blur together: “Works great, my dad can hear again!” “Amazing quality for the price!” “Better than the ones from the doctor!” Photos of the box on a kitchen table. Reviewer names with no history, or a history of reviewing a phone case, a garden hose and a set of kitchen knives in the same week.

Sometimes the reviews are for a different product entirely. The listing was once a phone charger, sold a few thousand units, and was then quietly changed to a hearing device while keeping every star it earned. The older reviews still talk about charging speed.

Why it works on us

Because reviews are the only evidence most of us have. You cannot try a hearing device in a marketplace listing, the specifications are meaningless to most buyers, and the price is too low for a clinic to bother. So we read the reviews, and the seller knows that is the whole game.

It works doubly well in this category because the people writing real reviews are often not the people wearing the device. Adult children buy for parents, and a review that says “my mother seems happier” is honest and tells you almost nothing. Fake reviews imitate exactly that vagueness.

The fingerprints

Reading reviews for a living is mostly looking for patterns that should not exist. These are the ones that give a manufactured review base away:

• Velocity. Real products gather reviews slowly and unevenly. A listing that collected hundreds in its first week, then a trickle, was seeded.
• Date clusters. Look at the dates on the five-star reviews. Genuine ones spread out. Bought ones arrive in bunches, often on the same two or three days.
• Copied phrasing. Search a distinctive phrase from one review across the others. When “crystal clear and very comfortable” appears twelve times, one person wrote it.
• Nothing specific. A real hearing aid buyer mentions their loss, the situation that was hard, the whistling, the battery, the app, the fit. A fake reviewer praises the product and never describes a life.
• The distribution. Honest products have a spread. A rating histogram that is almost all five stars with a small spike at one star and nothing in between is the signature of purchased praise sitting on top of real disappointment.
• Verified but incentivised. A card in the box offering a gift card for a five-star review produces a “verified purchase” review that is still bought. The Federal Trade Commission’s rule on fake reviews, in force since late 2024, prohibits buying positive reviews, but the cards are still in the boxes.
• Review hijacking. Early reviews that describe a different product mean the listing was recycled. The stars were earned by something else.

How to spot it in ten seconds

1. Sort by most recent and look at the dates. Bunching is the first tell.
2. Read the one-star and three-star reviews first. Those are the people who paid money and got angry enough to type. They describe the feedback whistle, the return that was refused, the charger that died. That is the product.
3. Search one phrase. Pick a slightly unusual phrase from a five-star review and search the review page for it.
4. Click three reviewer profiles. No history, or a history of reviewing unrelated products in a single week, is a rented account.
5. Check the earliest reviews. If they describe a different product, walk away.

Real buyers complain about specific things. Fake reviewers praise in general.

What to do instead

• Weight the negative reviews heavily and the positive ones lightly. It is not cynicism. The positive ones are the cheap ones to fake.
• Look for the reviewer who sounds like you. Someone who names their type of hearing loss and the situation they struggled with is worth fifty people whose dad can hear again.
• Use the FDA check from our article on amplifiers sold as hearing aids. A product with a real regulatory record needs fake reviews less than one without.
• Start with our Real Choices, where the products have been through the records check before anyone reads a review.

Case Files

Products and sellers we have documented using this tactic will be linked here as Case Files are published. If you have been caught by it, send us the listing and your order details. Dated screenshots are the most useful thing you can send.

Evaluated by Scott West. Data scientist. 40 years of hearing loss. Method: How We Evaluate.