Why does the price of the same product differ between online stores?
The same product can cost differently at eMAG, Altex, Flanco or PC Garage. The difference is not accidental: it reflects different purchase costs, different margin strategies, own promotions and, at times, price adjustments against competitors.
Short answer
- Purchase costs differ: a large retailer can negotiate better terms with suppliers than a small one.
- Margin strategies differ: some choose fast turnover with a small margin, others a larger margin with slower turnover.
- Own campaigns can cut the price temporarily: vouchers, flash deals, themed campaigns.
- Some sellers adjust their price against competitors, so gaps can change from one day to the next.
Main causes of price differences
- Different purchase cost: large retailers can get better terms from manufacturers or importers.
- Margin strategy: each retailer decides what margin it accepts and on which products.
- Shipping included or not: a price without shipping can look lower on the page, yet the total paid can be higher.
- Price adjustments against competitors: some sellers make them often, which changes the gaps from day to day.
- Available stock: a store that wants to clear stock may cut the price below the market level.
Causes of price differences between stores and the effect of each
| Cause | Effect on price |
|---|---|
| Purchase cost | Large retailers can get better terms from suppliers. |
| Margin strategy | Each store picks the margin it accepts, so the final price differs. |
| Shipping included or not | The page price can look lower, but the total paid can be higher. |
| Adjustments against competitors | Gaps between stores can change from one day to the next. |
| Available stock | A store clearing stock may drop the price below market. |
Why a price can change even within a day
Some sellers, including those on marketplaces, change their prices several times a day, against competitors or depending on stock. If you look at two stores at different moments, you may be comparing prices that were not valid at the same time. That is why a fair comparison uses prices read as close together in time as possible.
Common mistakes when comparing prices
- Comparing the page price without shipping: the total price can be different.
- Comparing prices read at different times of the day or week.
- Ignoring warranty and after-sales service: a lower price can come with different terms.
How 4pricing helps
In 4pricing you add the product-page links from the stores you follow; keyword search covers only six Romanian retailers (eMAG, Altex, Flanco, PC Garage, Evomag and Cel.ro). Prices are checked on a schedule, every 6 hours by default, and every successful check is kept in the history. In a group you see your price and that of the competitors you added yourself, with the lowest price and your position. The history helps you see whether a low price is stable or a passing offer. Shipping cost is not tracked; you add it yourself when comparing.