Updated 2026-11-08 · Based on manufacturer specs and public listings. Prices are approximate.
Stronger on paper: Roborock S7
It leads on 2 of the 2 performance specs we can compare (run time and dustbin).
| Spec | iRobot Roomba Combo j7+ | Roborock S7 |
|---|---|---|
| Price (approx.) | ~$899 | ~$429 ✓ |
| Weight | 3.6 kg ✓ | 4.3 kg |
| Run time | 75 min | 180 min ✓ |
| Dustbin | 0.4 L | 0.47 L ✓ |
| Warranty | 1 year | 1 year |
| Features | Obstacle avoid, self-empty, mop | 2500Pa, LiDAR, mop |
Leads on: weight.
Notable: Obstacle avoid, self-empty, mop
Check current price on AmazonLeads on: price, run time and dustbin.
Notable: 2500Pa, LiDAR, mop
Check current price on AmazonOn the specs we track, Roborock S7 comes out ahead. See the verdict and the table above for where each one leads.
iRobot Roomba Combo j7+ is about $899 and Roborock S7 about $429, so Roborock S7 is roughly $470 cheaper. Prices change often, so check the live price before buying.
iRobot Roomba Combo j7+: 1 year. Roborock S7: 1 year. Check the seller's page, as warranty terms vary by country.