Updated 2026-11-08 · Based on manufacturer specs and public listings. Prices are approximate.
Stronger on paper: iRobot Roomba S9+
It leads on 1 of the 1 performance specs we can compare (run time).
| Spec | iRobot Roomba Combo j7+ | iRobot Roomba S9+ |
|---|---|---|
| Price (approx.) | ~$899 | ~$899 |
| Weight | 3.6 kg ✓ | 4.0 kg |
| Run time | 75 min | 120 min ✓ |
| Dustbin | 0.4 L | 0.4 L |
| Warranty | 1 year | 1 year |
| Features | Obstacle avoid, self-empty, mop | 2200Pa, D-shape, self-empty |
Leads on: weight.
Notable: Obstacle avoid, self-empty, mop
Check current price on AmazonLeads on: run time.
Notable: 2200Pa, D-shape, self-empty
Check current price on AmazonOn the specs we track, iRobot Roomba S9+ comes out ahead. See the verdict and the table above for where each one leads.
Both sell for about $899. Prices change often, so check the live price before buying.
iRobot Roomba Combo j7+: 1 year. iRobot Roomba S9+: 1 year. Check the seller's page, as warranty terms vary by country.