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2026 comparison
Updated Jan 7, 2026
|Sources: Amazon, Manufacturer

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.

⚖️ Weight: 143.92 oz vs 176.37 oz⚡ Suction Power: 100% stronger vs 8000 Pa🕒 Runtime: 120 min vs 210 min

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iRobot Roomba Combo j9+ Auto-Fill Robot Vacuum and Mop
Navigation:PrecisionVision Navigation (Camera-based VSLAM with object recognition and avoidance).
Mapping:Imprint Smart Mapping (Stores up to 10 maps, room segmentation, room naming, and Keep Out Zones).
Obstacle Avoidance:PrecisionVision with AI (Identifies and avoids cords, pet waste, shoes, socks, and seasonal items).
Suction Pa:Not published (Rated 100% stronger suction vs. Roomba i-Series / 2x Power-Lifting Suction).
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ECOVACS DEEBOT X2 Omni

ECOVACS DEEBOT X2 Omni

3.8
(2,886)Amazon
Navigation:Dual-Laser LiDAR (Semi-solid state sensor embedded in the body for a 210° field of view and lower height).
Mapping:TrueMapping 3.0 (3D Mapping 2.0, Multi-floor mapping, Fast Mapping, Map saving).
Obstacle Avoidance:AIVI 3D 2.0 (RGBD camera + 3D structured light; dynamic obstacle avoidance).
Suction Pa:8,000 Pa
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Key spec differences

Only the specs that differ are shown here. Winners are highlighted when the data is clear.

Battery1 specs
Battery CapacityKey
iRobot Roomba Combo j9+ Auto-Fill Robot Vacuum and Mop
14.4V / 4460 mAh Lithium-ion
ECOVACS DEEBOT X2 Omni
14.4V / 6400 mAh Lithium-ion
Design1 specs
Dimensions
iRobot Roomba Combo j9+ Auto-Fill Robot Vacuum and Mop
13.70" (L) x 13.70" (W) x 3.40" (H)
ECOVACS DEEBOT X2 Omni
12.60" (L) x 13.90" (W) x 3.74" (H) — Square shape design
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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

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

3.6(1,171)Amazon
ECOVACS DEEBOT X2 Omni

ECOVACS DEEBOT X2 Omni

3.8(2,886)Amazon
iRobot Roomba Combo j9+ Auto-Fill Robot Vacuum and Mop

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

Rating:3.6(1,171)Amazon
Navigation:PrecisionVision Navigation (Camera-based VSLAM with object recognition and avoidance).
Mapping:Imprint Smart Mapping (Stores up to 10 maps, room segmentation, room naming, and Keep Out Zones).
Obstacle Avoidance:PrecisionVision with AI (Identifies and avoids cords, pet waste, shoes, socks, and seasonal items).
Suction Pa:Not published (Rated 100% stronger suction vs. Roomba i-Series / 2x Power-Lifting Suction).
Brush System:Dual Multi-Surface Rubber Brushes (Resistant to hair tangles) + Edge-Sweeping Brush.
Mopping:SmartScrub System (Back-and-forth scrubbing motion with consistent pressure).
Mop Lift:Auto-Retract Mopping System (Lifts mop pad to the top of the robot to keep carpets completely dry).
Carpet Boost:Yes (Carpet Boost automatically increases suction on carpets).
Battery:14.4V / 4460 mAh Lithium-ion
Runtime:Up to 120 min (Recharge and Resume supported)
Charging Time:Approx. 3 hours
Dustbin:0.08 gal (313 mL) — Internal bin
Water Tank:0.05 gal (210 mL) — Internal tank (Auto-refilled by dock)
Auto Empty: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).
Mop Wash:No (Pad requires manual washing)
Mop Dry:No
Filtration:High-Efficiency Filter (Captures 99% of cat and dog allergens)
Noise Level:Approx. 68 dB
App Features:iRobot Home App (Dirt Detective prioritizes dirty rooms, Clean While I'm Away, SmartScrub settings, Pet Owner Official Promise).
Voice Assistants:Amazon Alexa, Google Assistant, Apple Siri.
Multi Floor:Yes (Imprint Smart Mapping stores multiple floor plans).
Threshold Climb:0.6" (1.6 cm) — Reduced slightly due to mopping mechanism
Height:3.40" (87 mm)
Dimensions:13.70" (L) x 13.70" (W) x 3.40" (H)

✓ 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

ECOVACS DEEBOT X2 Omni

Rating:3.8(2,886)Amazon
Navigation:Dual-Laser LiDAR (Semi-solid state sensor embedded in the body for a 210° field of view and lower height).
Mapping:TrueMapping 3.0 (3D Mapping 2.0, Multi-floor mapping, Fast Mapping, Map saving).
Obstacle Avoidance:AIVI 3D 2.0 (RGBD camera + 3D structured light; dynamic obstacle avoidance).
Suction Pa:8,000 Pa
Brush System:Extended Main Rubber Brush (200mm wide main brush designed to increase cleaning efficiency per pass) + Side brush.
Mopping:OZMO Turbo 2.0 Rotating Mopping System (Dual chenille fabric mops spinning at high speed).
Mop Lift:0.59" (15 mm) Automatic Mop Lift (Industry-leading lift height for plush carpets).
Carpet Boost:Yes (Ultrasonic sensor detects carpet and automatically boosts suction/lifts mops).
Battery:14.4V / 6400 mAh Lithium-ion
Runtime:Up to 210 min (Quiet Mode)
Charging Time:Approx. 5.5 hours
Dustbin:0.11 gal (420 mL) — Internal bin
Water Tank:0.05 gal (180 mL) — Internal tank (Auto-refilled by dock)
Auto Empty:Yes
Dock Type: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:Yes (131°F / 55°C Hot Water Washing to dissolve grease/stains)
Mop Dry:Yes (Hot Air Drying; approx. 2 hours)
Filtration:Antibacterial Filter / High-Efficiency Filter
Noise Level:Approx. 64.9 dB (Standard Mode)
App Features:ECOVACS HOME App (YIKO Voice Assistant 2.0, 3D Map, Zone Cleaning, Custom Scenarios).
Voice Assistants:YIKO (Built-in), Amazon Alexa, Google Assistant, Siri Shortcuts.
Multi Floor:Yes (Stores 2 permanent maps + 1 temporary map).
Threshold Climb:0.87" (22 mm)
Height:3.74" (95 mm) — Super-slim profile due to embedded LiDAR
Dimensions:12.60" (L) x 13.90" (W) x 3.74" (H) — Square shape design

✓ 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

As an Amazon Associate I earn from qualifying purchases.

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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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