Are Used Items on OLX Priced Above New? 16.9% of 313 OLX.pl Listings Were, Mostly Books

Mostly not. On November 12, 2026 we pulled the used listings for 18 everyday items on OLX.pl through Scavio's OLX API and priced each one against the cheapest new offer for the same item on Allegro.pl through Scavio's Allegro API. 53 of the 313 used listings (16.9%) asked at least the new price, and 44 of those 53 were used books. For electronics it almost never happened: 1 of 167 used listings, and none of 54 used kitchen appliances.

The question comes from r/Polska, where a thread titled "Używane rzeczy OLX" (75 points, 45 comments when we checked it on November 12) described a used aquarium set listed for 300 zł when a new one cost 240 zł in an online store, and asked what drives such sellers. One of the top replies said half of them are "too lazy to check the prices" (translated). We checked the prices.

This covers OLX.pl, part of OLX Europe (olx.pl, olx.ro, olx.pt, olx.bg, olx.ua, olx.kz and olx.uz); OLX Brasil, OLX India and the other OLX brands are different platforms.

What we found

Books are where the thread is right. All 23 used copies of Atomowe nawyki and 21 of 23 copies of Ostatnie życzenie asked at least the cheapest new copy. The top of the range ran from 89 to 177 zł a copy, against 22.87 zł new, and some sellers named collectible editions, such as a 1993 SuperNOWA printing. Part of the gap is delivery. The cheapest new Atomowe nawyki cost 19.12 zł but 69.11 zł delivered, and the cheapest delivered copy was 28.08 zł; against that, 13 of 23 used copies still asked as much or more. Counting Allegro.pl delivery on every item, the share at or above new falls from 16.9% to 9.9% (31 of 313).

The aquarium in the thread is a real pattern, with a catch. Five of the eight used Aquael Leddy 60 sets asked more than the cheapest new set, 376.43 zł. But used aquarium sets often come with more in them: one at 430 zł listed a filter, heater, fish and plants, and one at 600 zł came "z całym wyposażeniem" (with all the equipment). That is not the same thing as a new tank with its lamp.

Electronics and appliances sell at a discount. The median used AirPods Pro 2 listing asked 25% of the new price, the Thermomix TM6 48%, the PS5 DualSense 59%, the Sony WH-1000XM5 63% and the GoPro Hero 12 80%. One Nintendo Switch OLED asked 1,350 zł against 1,329.39 zł new; the other 19 asked less. Very low prices can mean a fake or a fault that the title does not mention, which we cannot tell from a listing. Three Catan sets asked 120 zł against 119.99 zł new, one grosz more.

How we compared

1. For each item, one search on OLX.pl with condition: "used" and include_promoted: false, so the paid promoted ads OLX inserts into results were left out. We took the first page of results, up to 40 organic ads.
2. We kept listings whose title names the item and dropped parts, accessories, listings that add other products or extras (games, cases, film, spare batteries), other editions or variants (DualSense Edge, Catan expansions, Dobble themed sets) and listings without a price. Aquarium sets were kept with their filter and heater, because that is what a set is. Every kept title was checked by hand.
3. For the new price we found the item's catalog product on Allegro.pl and took the cheapest new offer on it, item price without delivery, through product-offers sorted by price. For the De'Longhi, offers for a sibling model listed on the same product page were left out.
4. Both sides are asking prices on one day. OLX shows no sale prices, so this says what sellers ask, not what buyers pay; we did not message any seller.

The calls, so you can rerun it for your own list:

curl -s https://api.scavio.dev/api/v1/olx/search \
  -H "Authorization: Bearer $SCAVIO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query": "atomowe nawyki", "condition": "used", "include_promoted": false}'

curl -s https://api.scavio.dev/api/v1/allegro/product-offers \
  -H "Authorization: Bearer $SCAVIO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"product_id": "5f7630e3-17c4-456d-82ca-f43247a7b13e", "condition": "new", "sort": "price_low_to_high"}'

The OLX search returned 87 used matches for "atomowe nawyki"; the Allegro.pl product page listed 414 new offers for the book. Each OLX call costs 1 credit and each Allegro call 2, so this comparison took 18 OLX searches, 18 Allegro searches to find the products and 18 product-offers calls: 90 credits, about $0.09 on the Growth plan. On product-offers, featured and sponsored offers come first and are not in price order, so take the minimum over the page rather than the first offer.

Rerun it before you buy

A one-day snapshot of 18 items is a sample, not a market index. Asking prices on OLX change hourly and the cheapest new offer on Allegro.pl moves too. If you resell or buy used goods regularly, poll the same searches on a schedule and store the prices; how to get OLX listing data shows every call, and how to get Allegro price data covers the new side. Try the OLX API free, 50 credits, no card.

Reference: OLX API · OLX search docs · OLX similar ads docs · Allegro product-offers docs · best OLX listings APIs · Allegro vs Amazon.de prices · best Vinted APIs