Home › Compare › Dreame X40 Ultra vs iRobot Roomba j7+
Dreame X40 Ultra vs iRobot Roomba j7+
Dreame's $999 model meets iRobot's $449 model. We tally wins category by category, then call a verdict.
Our recommendation
Dreame X40 Ultra wins on more spec categories (8–2), but iRobot Roomba j7+ undercuts it by $550. Choose Dreame X40 Ultra if you want the better robot; choose iRobot Roomba j7+ if your budget is tight.
Dreame X40 Ultra: 8 category wins iRobot Roomba j7+: 2 category wins
Side by side
Dreame X40 Ultra
$999
iRobot Roomba j7+
$449
Suction
12,000 Pa Win
2,200 Pa
Runtime
198 min Win
90 min
Max coverage
308 m² Win
185 m²
Dustbin
300 ml
400 ml Win
Self-empty dock
Yes
Yes
Mopping
Yes Win
No
Auto-washes mop
Yes Win
No
Auto-refills water
Yes Win
No
Mop lift
10.5 mm Win
N/A
Navigation
LiDAR + RGB camera
Camera (vSLAM)
Obstacle avoidance
AI 3D structured light
PrecisionVision (AI)
Noise
65 dB Win
68 dB
Height
96.5 mm
87 mm Win
HEPA filter
Yes
Yes
Carpet boost
Yes
Yes
Smart home
Alexa, Google, Siri
Alexa, Google, Siri Shortcuts
Dreame X40 Ultra
Dual-arm robot with extending brush and mop that reaches edges others can't.
Buy on Amazon →
Buy from Dreame →
Prices and availability change frequently. We earn a commission on qualifying purchases.
iRobot Roomba j7+
The pet-poop-guarantee robot, proven obstacle avoidance, no mop.
Buy on Amazon →
Buy from iRobot →
Prices and availability change frequently. We earn a commission on qualifying purchases.
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