Updated 2026-11-08 · Based on manufacturer specs and public listings. Prices are approximate.
Too close to call on specs.
Neither model leads clearly on the performance specs we track, so price and the features that matter to you decide.
| Spec | ILIFE A4 Robot Vacuum | iRobot Roomba S9+ |
|---|---|---|
| Price (approx.) | ~$129 ✓ | ~$899 |
| Weight | 3.0 kg ✓ | 4.0 kg |
| Run time | 90 min | 120 min ✓ |
| Dustbin | 0.5 L ✓ | 0.4 L |
| Warranty | 1 year | 1 year |
| Features | 1200Pa, basic navigation | 2200Pa, D-shape, self-empty |
Leads on: price, weight and dustbin.
Notable: 1200Pa, basic navigation
Check current price on AmazonLeads on: run time.
Notable: 2200Pa, D-shape, self-empty
Check current price on AmazonOn the specs we track, neither is clearly better; the choice comes down to price and features. See the verdict and the table above for where each one leads.
ILIFE A4 Robot Vacuum is about $129 and iRobot Roomba S9+ about $899, so ILIFE A4 Robot Vacuum is roughly $770 cheaper. Prices change often, so check the live price before buying.
ILIFE A4 Robot Vacuum: 1 year. iRobot Roomba S9+: 1 year. Check the seller's page, as warranty terms vary by country.