iRobot Roomba Combo j9+ Auto-Fill Robot Vacuum and Mop vs ECOVACS DEEBOT X2 Omni
The iRobot Roomba Combo j9+ Auto-Fill Robot Vacuum and Mop is the mid-range option, but it faces tough competition from the flagship ECOVACS DEEBOT X2 Omni. If you're after top-notch cleaning performance, the DEEBOT's features like 8000 Pa suction power and auto mop washing could make it the smarter buy for your home. In real-world use, the iRobot’s Clean Base Auto-Fill Dock is impressive, emptying debris for up to 60 days and refilling water for 30 days. However, the DEEBOT's 6400 mAh battery lets it run up to 210 minutes, which is plenty for larger homes. So, what does this mean for your daily cleaning routine? More runtime means less time charging and more time cleaning, which is a big deal for busy households in 2026.
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iRobot Roomba Combo j9+ Auto-Fill Robot Vacuum and Mop

ECOVACS DEEBOT X2 Omni
Only the specs that differ are shown here. Winners are highlighted when the data is clear.
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Everything side-by-side with ratings and the full spec list.
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Full specs, pros, and cons
Everything side-by-side with ratings and the full spec list.
Comparison: iRobot Roomba Combo j9+ Auto-Fill Robot Vacuum and Mop vs ECOVACS DEEBOT X2 Omni

iRobot Roomba Combo j9+ Auto-Fill Robot Vacuum and Mop

ECOVACS DEEBOT X2 Omni
| Criterion | iRobot Roomba Combo j9+ Auto-Fill Robot Vacuum and Mop | ECOVACS DEEBOT X2 Omni |
|---|---|---|
| Rating | ★3.6(1,171)Amazon | ★3.8(2,886)Amazon |
Navigation | PrecisionVision Navigation (Camera-based VSLAM with object recognition and avoidance). | Dual-Laser LiDAR (Semi-solid state sensor embedded in the body for a 210° field of view and lower height). |
Mapping | Imprint Smart Mapping (Stores up to 10 maps, room segmentation, room naming, and Keep Out Zones). | TrueMapping 3.0 (3D Mapping 2.0, Multi-floor mapping, Fast Mapping, Map saving). |
Obstacle Avoidance | PrecisionVision with AI (Identifies and avoids cords, pet waste, shoes, socks, and seasonal items). | AIVI 3D 2.0 (RGBD camera + 3D structured light; dynamic obstacle avoidance). |
Suction Pa | Not published (Rated 100% stronger suction vs. Roomba i-Series / 2x Power-Lifting Suction). | 8,000 Pa |
Brush System | Dual Multi-Surface Rubber Brushes (Resistant to hair tangles) + Edge-Sweeping Brush. | Extended Main Rubber Brush (200mm wide main brush designed to increase cleaning efficiency per pass) + Side brush. |
Mopping | SmartScrub System (Back-and-forth scrubbing motion with consistent pressure). | OZMO Turbo 2.0 Rotating Mopping System (Dual chenille fabric mops spinning at high speed). |
Mop Lift | Auto-Retract Mopping System (Lifts mop pad to the top of the robot to keep carpets completely dry). | 0.59" (15 mm) Automatic Mop Lift (Industry-leading lift height for plush carpets). |
Carpet Boost | Yes (Carpet Boost automatically increases suction on carpets). | Yes (Ultrasonic sensor detects carpet and automatically boosts suction/lifts mops). |
Battery | 14.4V / 4460 mAh Lithium-ion | 14.4V / 6400 mAh Lithium-ion |
Runtime | Up to 120 min (Recharge and Resume supported) | Up to 210 min (Quiet Mode) |
Charging Time | Approx. 3 hours | Approx. 5.5 hours |
Dustbin | 0.08 gal (313 mL) — Internal bin | 0.11 gal (420 mL) — Internal bin |
Water Tank | 0.05 gal (210 mL) — Internal tank (Auto-refilled by dock) | 0.05 gal (180 mL) — Internal tank (Auto-refilled by dock) |
Auto Empty | Yes | Yes |
Dock Type | Clean Base Auto-Fill Dock (Empties debris for up to 60 days, refills water for up to 30 days; 15.8" W x 16.4" D x 16.3" H). | OMNI Station (Auto-Empty, Hot Water Mop Wash, Hot Air Dry, Auto-Refill, Self-Cleaning). Tanks: 4.0L Clean / 3.5L Dirty / 3.0L Dust Bag. Dims: 15.5" W x 17.4" D x 20.8" H. |
Mop Wash | No (Pad requires manual washing) | Yes (131°F / 55°C Hot Water Washing to dissolve grease/stains) |
Mop Dry | No | Yes (Hot Air Drying; approx. 2 hours) |
Filtration | High-Efficiency Filter (Captures 99% of cat and dog allergens) | Antibacterial Filter / High-Efficiency Filter |
Noise Level | Approx. 68 dB | Approx. 64.9 dB (Standard Mode) |
App Features | iRobot Home App (Dirt Detective prioritizes dirty rooms, Clean While I'm Away, SmartScrub settings, Pet Owner Official Promise). | ECOVACS HOME App (YIKO Voice Assistant 2.0, 3D Map, Zone Cleaning, Custom Scenarios). |
Voice Assistants | Amazon Alexa, Google Assistant, Apple Siri. | YIKO (Built-in), Amazon Alexa, Google Assistant, Siri Shortcuts. |
Multi Floor | Yes (Imprint Smart Mapping stores multiple floor plans). | Yes (Stores 2 permanent maps + 1 temporary map). |
Threshold Climb | 0.6" (1.6 cm) — Reduced slightly due to mopping mechanism | 0.87" (22 mm) |
Height | 3.40" (87 mm) | 3.74" (95 mm) — Super-slim profile due to embedded LiDAR |
Dimensions | 13.70" (L) x 13.70" (W) x 3.40" (H) | 12.60" (L) x 13.90" (W) x 3.74" (H) — Square shape design |
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iRobot Roomba Combo j9+ Auto-Fill Robot Vacuum and Mop
✓ Pros:
- • Clean Base Auto-Fill Dock automates both dust emptying and water refilling
- • Auto-Retract Mopping System is the industry standard for keeping high-pile carpets dry
- • Dirt Detective (iRobot OS) automatically prioritizes the dirtiest rooms
- • Dual Multi-Surface Rubber Brushes are excellent for pet hair and carpets
- • Elegant dock design with a wood-like surface top
✗ Cons:
- • Dock does not wash or dry the mop pad (requires manual maintenance)
- • Navigation and mapping are slower than LiDAR-based competitors
- • Lacks live video monitoring despite having a camera (privacy-focused)
- • Small onboard dustbin relies heavily on frequent auto-emptying
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ECOVACS DEEBOT X2 Omni
✓ Pros:
- • Unique square shape allows for superior edge and corner cleaning coverage compared to round robots
- • Embedded Dual-Laser LiDAR results in a lower 3.74" profile, fitting under more furniture
- • 15mm mop lift is one of the highest in the industry, keeping medium-pile carpets dry
- • OMNI Station uses 131°F hot water to wash mops, effectively removing oil and sticky messes
- • Built-in YIKO voice assistant offers direct offline voice control without needing a smart speaker
✗ Cons:
- • Navigation and obstacle avoidance can be less consistent than top-tier Roborock competitors
- • Square design can occasionally cause navigation issues in tight, complex turns
- • App experience and mapping stability receive mixed user feedback
- • Large dock footprint requires significant dedicated floor space
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Which one is better?
The ECOVACS DEEBOT X2 Omni is the better buy for most people - its 8000 Pa suction power crushes the iRobot's performance. That said, grab the iRobot Roomba Combo j9+ if you want a more budget-friendly option with automated dust emptying.
Who should buy each?
Choose the iRobot Roomba Combo j9+ Auto-Fill Robot Vacuum and Mop if: you want automated dust emptying, prefer a smaller dock footprint, or have high-pile carpets. (143.92 oz weight)
Choose the ECOVACS DEEBOT X2 Omni if: you need superior suction power, want automatic mop washing, or have a larger home that requires extended runtime. (176.37 oz weight)
Conclusion
With the key differences outlined, the decision should be clearer. Both options deliver quality—choose the one that fits your priorities.
Frequently Asked Questions
+Which has better value?
iRobot Roomba Combo j9+ Auto-Fill Robot Vacuum and Mop excels if you value clean base auto-fill dock automates both dust emptying and water refilling. ECOVACS DEEBOT X2 Omni is better if you prioritize unique square shape allows for superior edge and corner cleaning coverage compared to round robots. Pick based on your budget and daily use.
+Is this an independent review?
Yes. We use affiliate links for monetization, but recommendations are research-driven and unbiased.
+Do newer models exist?
Check release timelines from the manufacturers and compare pricing before you buy. We refresh this page when major updates land.
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