iRobot Roomba j9+ vs Roborock S8 MaxV Ultra
Decision sheet: the facts that decide it
iRobot Roomba j9+: 4 of 6 decision facts sourced.
Roborock S8 MaxV Ultra: 6 of 6 decision facts sourced.
| iRobot Roomba j9+ | Roborock S8 MaxV Ultra | |
|---|---|---|
| Price today | Price not yet checked | Price not yet checked |
| Suction | Not yet sourced | 10000 Pa us.roborock.com |
| Runtime | Not yet sourced | 180 minutes bestbuy.com |
| Bin capacity | 0.1 gallons bestbuy.com | 0.07 gallons bestbuy.com |
| Weight | 7 pounds bestbuy.com | 32.19 lb us.roborock.com |
| Dock | Clean Base Auto-Fill Dock: empties debris up to 60 days, refills liquid up to 30 days irobot.com | Hot water mop washing, heated air drying, auto detergent dispenser, auto dust emptying, auto refill us.roborock.com |
| Starting MSRP | $1,399.99 irobot.com | $1,799.99 bestbuy.com |
Not yet sourced — iRobot Roomba j9+: Suction, Runtime. No manufacturer, official or retailer source we read publishes these yet; we don't estimate them.
Pick iRobot Roomba j9+ if
- More bin capacity — 0.1 gallons vs 0.07 gallons (bestbuy.com, bestbuy.com)
- Lighter — 7 lb vs 32.19 lb (bestbuy.com, us.roborock.com)
- Lower starting price — $1,399 vs $1,799 (irobot.com, bestbuy.com)
Verdict: On the figures both makers publish, the Roomba j9+ leads with more bin capacity (0.1 gallons vs 0.07 gallons), lighter (7 lb vs 32.19 lb) and lower starting price ($1,399 vs $1,799).
Winner: Roborock S8 MaxV Ultra
iRobot Roomba j9+: 7/10
Roborock S8 MaxV Ultra: 7.7/10
Spec-by-spec comparison
| iRobot Roomba j9+ | Roborock S8 MaxV Ultra | |
|---|---|---|
| Bin capacity | 0.1 gallons | 0.07 gallons |
| Dock | Clean Base Auto-Fill Dock: empties debris up to 60 days, refills liquid up to 30 days | Hot water mop washing, heated air drying, auto detergent dispenser, auto dust emptying, auto refill |
| Filtration | Standard | Reusable |
| Weight | 7 pounds | 32.19 lb |
| Starting MSRP | $1,399.99 | $1,799.99 |
| Battery Capacity | 4400 milliampere hours | 5200 milliampere hours |
iRobot Roomba j9+
What works
- Superior carpet cleaning, especially for pet hair
- Mature iRobot navigation with reliable room mapping
- Simpler dock setup — plug in and use
What doesn't
- Vacuum only — no mopping capability
- PrecisionVision can push small objects rather than avoid them
- No HomeKit support
Roborock S8 MaxV Ultra
What works
- Vacuums and mops in one pass
- Self-cleaning dock washes and dries mop pads automatically
- Better obstacle avoidance on cluttered floors
What doesn't
- Carpet cleaning trails j9+ on medium to high pile
- Complex dock requires water supply setup
- App has steeper learning curve
Bottom line
Our pick: Roborock S8 MaxV Ultra.
View full comparison on GoodPickr
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