| Series | Models | Median of medians | 7-day change |
|---|---|---|---|
| iPhone | 29 | $484 | stable |
| Samsung Galaxy | 13 | $371 | −7.2% |
| Dyson | 5 | $280 | stable |
| Google Pixel | 4 | $350 | stable |
| MacBook | 4 | $972 | stable |
| Apple Watch | 4 | $184 | −4.5% |
| Headphones | 3 | $224 | — |
| AirPods | 2 | $204 | — |
| PlayStation | 2 | $398 | — |
| Xbox | 2 | $573 | — |
| Laptops | 2 | $642 | — |
— : series with fewer than 4 models, change not published.
The Dero Refurbished Price Index is a weekly index computed from daily snapshots collected since September 16, 2026: for each tracked model we take the median of offers, then the median of those medians. Changes are published only for models with at least 20 offers and moves beyond 2%, to filter out statistical noise. The 7-day change is computed on a constant basket: only the 270 models present at both dates enter the comparison, so catalog growth is not mistaken for a price increase. A monthly index will be published after 30 days of history.