Compare the real price, not the sticker price
The cheaper listing is often not cheaper. One store adds shipping at checkout, another sells the older model under the same name, a third is a refurbished unit with a short warranty. You compare two numbers on a product page and pay for the difference later.
Two checks fix most of it. First confirm both listings are the same product, then compare what you would actually pay to have it at your door. Agatha Critique (@vustReviewBot) reads several product links in one message, shows each product card side by side and flags differences in the reviews. You add the costs only you can see at checkout.
A worked comparison of two listings
This is an illustrative comparison with made-up numbers.
Listing A: wireless earbuds, listed at $79, new, ships for $9, one-year warranty.
Listing B: the same model name at $72, but the card says "renewed", ships for $6, ninety-day warranty.
- Same item? No. B is renewed. Treat it as a different product, even with the same name.
- Delivered cost. A is $88. B is $78.
- What the $10 buys. A new unit and nine more months of warranty.
The decision is now a real one: is nine months of warranty on a new unit worth $10 to you? Listing prices alone would have pointed at B without showing the trade.
Check before you call it the same product
- Model number or variant, not just the product name.
- Condition: new, renewed or open box.
- Seller and warranty: who honors the warranty and for how long.
- Delivered cost in one currency, including shipping and any tax shown at checkout.
When to wait instead of buying
If both listings are the same product and neither price feels right, set a Price Watch on the one you would buy. You get a message when its price drops by 10% or more, and you decide then. Open Agatha Critique and send both links in one message.