2026 comparison

Updated Jan 16, 2026

|Sources: Amazon, Manufacturer

iRobot Roomba Combo j9+ Auto-Fill Robot Vacuum and Mop vs eufy RoboVac 11S MAX

Choosing between iRobot Roomba Combo j9+ Auto-Fill Robot Vacuum and Mop and eufy RoboVac 11S MAX can be tricky. Both are excellent, but they serve different priorities. This guide highlights what matters for US shoppers.

Ratings: 3.6★ vs 4.1★

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

★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).

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eufy RoboVac 11S MAX

★4.1

(45,322)•Amazon

Navigation:Bounce-style navigation (Random) with infrared anti-collision & drop-sensing sensors.

Mapping:No (Does not create or store maps).

Obstacle Avoidance:Basic infrared sensors (slows down for large obstacles; does not detect small objects/cables).

Suction Pa:2000Pa (Max)

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Comparison: iRobot Roomba Combo j9+ Auto-Fill Robot Vacuum and Mop vs eufy RoboVac 11S MAX

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

★3.6(1,171)Amazon

eufy RoboVac 11S MAX

★4.1(45,322)Amazon

Criterion	iRobot Roomba Combo j9+ Auto-Fill Robot Vacuum and Mop	eufy RoboVac 11S MAX
Rating	★3.6(1,171)Amazon	★4.1(45,322)Amazon
Navigation	PrecisionVision Navigation (Camera-based VSLAM with object recognition and avoidance).	Bounce-style navigation (Random) with infrared anti-collision & drop-sensing sensors.
Mapping	Imprint Smart Mapping (Stores up to 10 maps, room segmentation, room naming, and Keep Out Zones).	No (Does not create or store maps).
Obstacle Avoidance	PrecisionVision with AI (Identifies and avoids cords, pet waste, shoes, socks, and seasonal items).	Basic infrared sensors (slows down for large obstacles; does not detect small objects/cables).
Suction Pa	Not published (Rated 100% stronger suction vs. Roomba i-Series / 2x Power-Lifting Suction).	2000Pa (Max)
Brush System	Dual Multi-Surface Rubber Brushes (Resistant to hair tangles) + Edge-Sweeping Brush.	Main rolling brush + single side brush (optimized for edge cleaning).
Mopping	SmartScrub System (Back-and-forth scrubbing motion with consistent pressure).	No
Mop Lift	Auto-Retract Mopping System (Lifts mop pad to the top of the robot to keep carpets completely dry).	N/A (No mopping)
Carpet Boost	Yes (Carpet Boost automatically increases suction on carpets).	Yes (BoostIQ™ Technology automatically increases suction on carpets).
Battery	14.4V / 4460 mAh Lithium-ion	Li-ion (2600 mAh)
Runtime	Up to 120 min (Recharge and Resume supported)	Up to 100 min (Standard Mode on hard floors); approx. 60 min (Max Suction).
Charging Time	Approx. 3 hours	5-6 hours
Dustbin	0.08 gal (313 mL) — Internal bin	0.16 gal (0.6 L)
Water Tank	0.05 gal (210 mL) — Internal tank (Auto-refilled by dock)	N/A (No mopping)
Auto Empty	Yes	No
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).	Charging Base (Standard)
Mop Wash	No (Pad requires manual washing)	N/A (No mopping)
Mop Dry	No	N/A (No mopping)
Filtration	High-Efficiency Filter (Captures 99% of cat and dog allergens)	Triple-layer system (Unibody high-performance filter + foam + pre-filter).
Noise Level	Approx. 68 dB	55 dB (Standard Mode)
App Features	iRobot Home App (Dirt Detective prioritizes dirty rooms, Clean While I'm Away, SmartScrub settings, Pet Owner Official Promise).	No app; controlled via included Remote Control (scheduling, cleaning modes, directional manual control).
Voice Assistants	Amazon Alexa, Google Assistant, Apple Siri.	No (Not Wi-Fi enabled).
Multi Floor	Yes (Imprint Smart Mapping stores multiple floor plans).	No
Threshold Climb	0.6" (1.6 cm) — Reduced slightly due to mopping mechanism	0.63" (16 mm)
Height	3.40" (87 mm)	2.85"
Dimensions	13.70" (L) x 13.70" (W) x 3.40" (H)	12.8" (L) x 12.8" (W) x 2.85" (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	Strong 2000Pa suction with BoostIQ for effective carpet cleaning Ultra-slim 2.85" profile fits under low-clearance furniture Quiet operation (55 dB) allows for cleaning without disturbance Large 0.6L dustbin reduces emptying frequency
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	Random 'bounce' navigation can miss spots and takes longer than smart vacuums No Wi-Fi, mobile app, or voice assistant support Lacks virtual boundaries or keep-out zones Single side brush (previous non-MAX version had two)
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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

As an Amazon Associate I earn from qualifying purchases.

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eufy RoboVac 11S MAX

Rating:★4.1(45,322)Amazon

Navigation:Bounce-style navigation (Random) with infrared anti-collision & drop-sensing sensors.

Mapping:No (Does not create or store maps).

Obstacle Avoidance:Basic infrared sensors (slows down for large obstacles; does not detect small objects/cables).

Suction Pa:2000Pa (Max)

Brush System:Main rolling brush + single side brush (optimized for edge cleaning).

Mopping:No

Mop Lift:N/A (No mopping)

Carpet Boost:Yes (BoostIQ™ Technology automatically increases suction on carpets).

Battery:Li-ion (2600 mAh)

Runtime:Up to 100 min (Standard Mode on hard floors); approx. 60 min (Max Suction).

Charging Time:5-6 hours

Dustbin:0.16 gal (0.6 L)

Water Tank:N/A (No mopping)

Auto Empty:No

Dock Type:Charging Base (Standard)

Mop Wash:N/A (No mopping)

Mop Dry:N/A (No mopping)

Filtration:Triple-layer system (Unibody high-performance filter + foam + pre-filter).

Noise Level:55 dB (Standard Mode)

App Features:No app; controlled via included Remote Control (scheduling, cleaning modes, directional manual control).

Voice Assistants:No (Not Wi-Fi enabled).

Multi Floor:No

Threshold Climb:0.63" (16 mm)

Height:2.85"

Dimensions:12.8" (L) x 12.8" (W) x 2.85" (H)

✓ Pros:

• Strong 2000Pa suction with BoostIQ for effective carpet cleaning
• Ultra-slim 2.85" profile fits under low-clearance furniture
• Quiet operation (55 dB) allows for cleaning without disturbance
• Large 0.6L dustbin reduces emptying frequency

✗ Cons:

• Random 'bounce' navigation can miss spots and takes longer than smart vacuums
• No Wi-Fi, mobile app, or voice assistant support
• Lacks virtual boundaries or keep-out zones
• Single side brush (previous non-MAX version had two)

As an Amazon Associate I earn from qualifying purchases.

Check Price on Amazon→

Which one is better?

eufy RoboVac 11S MAX is stronger in overall satisfaction, but iRobot Roomba Combo j9+ Auto-Fill Robot Vacuum and Mop could still be the better pick if you value its unique advantages.

Who should buy each?

For performance and polish: iRobot Roomba Combo j9+ Auto-Fill Robot Vacuum and Mop (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)

For value or versatility: eufy RoboVac 11S MAX (Strong 2000Pa suction with BoostIQ for effective carpet cleaning, Ultra-slim 2.85" profile fits under low-clearance furniture)

Conclusion

iRobot Roomba Combo j9+ Auto-Fill Robot Vacuum and Mop and eufy RoboVac 11S MAX are both solid choices. Match the strengths above to your budget and workflow to make the best call.

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. eufy RoboVac 11S MAX is better if you prioritize strong 2000pa suction with boostiq for effective carpet cleaning. 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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