iRobot
iRobot Roomba j9+ (White)
2023
85
/ 100
From $899
VS
Roborock S8 MaxV Ultra (Black) wins by 7
Roborock
Roborock S8 MaxV Ultra (Black)
2024
92
/ 100
From $1,799
Specdex verdict
Roborock S8 MaxV Ultra (Black) takes it — here’s why.
In our weighted Specdex score, iRobot Roomba j9+ (White) lands at 85 and Roborock S8 MaxV Ultra (Black) at 92. That puts Roborock S8 MaxV Ultra (Black) ahead by 7 points — a decisive margin driven mostly by its strengths in the categories below.
Pick iRobot Roomba j9+ (White) if…
- ✓Matter/Thread support (modern SKUs)
- ✓App-based setup
- ✓Works with major voice assistants
Pick Roborock S8 MaxV Ultra (Black) if…
- ✓Matter/Thread support (modern SKUs)
- ✓App-based setup
- ✓Works with major voice assistants
iRobot Roomba j9+ (White) 85
vs 92 Roborock S8 MaxV Ultra (Black)
Score breakdown
iRobot Roomba j9+ (White)
85 ecosystem 85
local 70
ease 84
features 83
Roborock S8 MaxV Ultra (Black)
92 ecosystem 92
local 70
ease 84
features 90
Specs side-by-side
| Spec | iRobot Roomba j9+ (White) | Roborock S8 MaxV Ultra (Black) |
|---|---|---|
| Release year | 2023 | 2024 |
| Color | White | Black |
iRobot Roomba j9+ (White)
Pros
- +Matter/Thread support (modern SKUs)
- +App-based setup
- +Works with major voice assistants
Cons
- −Subscription sometimes required
- −Cloud dependency on many
- −Ecosystem lock-in
Roborock S8 MaxV Ultra (Black)
Pros
- +Matter/Thread support (modern SKUs)
- +App-based setup
- +Works with major voice assistants
Cons
- −Subscription sometimes required
- −Cloud dependency on many
- −Ecosystem lock-in
FAQ: iRobot Roomba j9+ (White) vs Roborock S8 MaxV Ultra (Black)
Which is better, iRobot Roomba j9+ (White) or Roborock S8 MaxV Ultra (Black)? +
Roborock S8 MaxV Ultra (Black) scores 92 on our weighted rubric — ahead by 7. Your best pick depends on the sub-scores above.
Is iRobot Roomba j9+ (White) worth the price? +
At $899, iRobot Roomba j9+ (White) delivers a Specdex score of 85 — strongest in ecosystem.
Is Roborock S8 MaxV Ultra (Black) worth the price? +
At $1,799, Roborock S8 MaxV Ultra (Black) delivers a Specdex score of 92 — strongest in ecosystem.
Does iRobot Roomba j9+ (White) or Roborock S8 MaxV Ultra (Black) last longer? +
Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.