# iRobot Roomba Max 775 Combo vs iRobot Roomba Plus 505 Combo

As of Nov 4, 2026, the iRobot Roomba Max 775 Combo costs $1,000 and the iRobot Roomba Plus 505 Combo costs $1,000. Pick the iRobot Roomba Max 775 Combo for low maintenance hard floor cleaning. Pick the iRobot Roomba Plus 505 Combo for families who want mopping right up to walls.

Prices checked Nov 4, 2026. HTML version: https://robotsforthat.com/vs/irobot-roomba-max-775-combo-vs-irobot-roomba-plus-505-combo/

## Side by side

| | iRobot Roomba Max 775 Combo | iRobot Roomba Plus 505 Combo |
|---|---|---|
| Price | $1,000 | $1,000 |
| 3 year cost | $1,100 | $1,000 |
| Our score | Not scored yet | Not scored yet |
| Rank in Floors | #84 | #88 |
| Status | on sale | on sale |
| Warranty | n/a | n/a |
| Suction | 30,000 Pa (Tom's Guide spec table); iRobot only says 4X the suction of the Roomba 105 Combo | iRobot claims up to 70x the suction of Roomba 600 series robots with 4 levels; New Atlas lists 7,000 Pa |
| Navigation | ClearView Pro LiDAR with 3D mapping; about 9 min to map 1,000 sq ft, stores up to 5 maps | ClearView Pro LiDAR, up to 5 maps, about 9 min to map 1,000 sq ft (iRobot); Tom's Guide saw mapping in 5 to 7 min |
| Obstacle avoidance | PrecisionVision AI camera recognizes cords, shoes and pet waste; Gizmodo saw it drag a cable and get stuck under a child's bed | PrecisionVision AI for cords, socks, shoes and pet waste (iRobot); New Atlas saw it occasionally swallow socks and cables |
| Mopping | Yes, PowerSpin roller mop at 200 RPM with PerfectEdge extension, heated spot mopping and a cover that flips over the roller on carpet | Two DualClean spinning pads at 200 RPM that extend toward edges and lift on carpet (iRobot) |
| Self empty | Yes, into carbon odor control bags that iRobot says last about 3 months | Yes, bagged, about 75 days of auto emptying per bag (iRobot) |
| Dock features | AutoWash dock washes the roller with 167°F water, dries it at 122°F, dispenses StayClean solution and stores a spare bag | AutoWash dock empties debris, washes pads, heat dries pads and self cleans; clean and dirty water tanks (iRobot) |
| Runtime | 180 min (Tom's Guide spec table); 6,000 mAh LFP battery | 3 hours (spec sheet cited by Tom's Guide); iRobot's page lists no runtime |
| Dustbin | Onboard bin size not published; dock bag rated for about 90 days | n/a |
| Height | 4.1 in robot; 17 in dock | 4.2 in robot height (iRobot) |
| Pet hair | Dual rubber brushes; Tom's Guide measured 44% hair pickup on hardwood and 52% on carpet, while Xataka rated pet hair pickup excellent | Tom's Guide saw no dog hair tangles over 20+ runs; New Atlas found hair wrapping the ends of the brush |
| App | Roomba Home app with schedules, keep out zones, water flow and suction controls; Gizmodo found it buggy on long runs | Roomba Home app; Matter enabled, works with Apple Home, Alexa, Siri and Google Assistant (iRobot) |
| Weight | 12.8 lb robot, 19.0 lb dock (iRobot) | n/a |
| Threshold | n/a | Not stated by iRobot; Tom's Guide said it crossed thresholds without problems, New Atlas called step climbing clunky |
| Noise | n/a | Tom's Guide measured about 65 dB vacuuming and mopping, 87 dB when the dock empties the bin |
| Best for | low maintenance hard floor cleaning | families who want mopping right up to walls |
| Skip if | you want a quiet robot | you want a quiet dock or have lots of loose cables |

## What reviewers found

### iRobot Roomba Max 775 Combo

- Gizmodo: Good vacuuming with no clogs and a streak free roller mop that handled ketchup about as well as rivals, but noisy, a buggy app on long runs, unreliable carpet detection and trapped twice under a bed. A full vacuum and mop of 750 sq ft took about 2.5 hours. [Source](https://gizmodo.com/irobot-roomba-max-775-review-a-respectable-roomba-redux-2000813995)
- Tom's Guide: Hard to recommend. Hardwood pickup of 44% hair, 86.5% Rice Krispies and 91% chia seeds; carpet 52%, 63.5% and 35%. Bumped walls often, scattered debris with its side brushes and left slight mop residue. [Source](https://www.tomsguide.com/home/home-appliances/roomba-max-775-combo-review)
- Xataka: Excellent pet hair pickup and effective hot water roller mopping; cleaned 55 m² in 40 minutes using 33% of the battery. Fixed side brushes made corners less thorough and bags and solution are costly. [Source](https://www.xataka.com/analisis/irobot-roomba-max-775-combo-analisis-caracteristicas-precio-especificaciones)

### iRobot Roomba Plus 505 Combo

- Tom's Guide: Mapped the home in 5 to 7 minutes, avoided shoes and toys, and had no dog hair tangles over 20+ runs. Measured about 65 dB in auto mode and 87 dB when the dock empties the bin. Spot clean was less thorough and the app sometimes glitched. [Source](https://www.tomsguide.com/home/home-appliances/roomba-plus-505-combo-review)
- New Atlas: After one to two months in a family home, praised wall and corner mopping and low upkeep, but found it noisy, saw hair wrap the brush ends, and saw it swallow socks and cables now and then. Called it a great buy at about $599. [Source](https://newatlas.com/around-the-home/roomba-plus-505-combo-review)

## Questions buyers ask

### Which is better, the iRobot Roomba Max 775 Combo or the iRobot Roomba Plus 505 Combo?

Pick the iRobot Roomba Max 775 Combo for low maintenance hard floor cleaning. Pick the iRobot Roomba Plus 505 Combo for families who want mopping right up to walls.

### What is the difference between the Roomba Max 775 Combo and the Roomba Plus 505 Combo?

Suction: 30,000 Pa (Tom's Guide spec table); iRobot only says 4X the suction of the Roomba 105… on the Roomba Max 775 Combo, iRobot claims up to 70x the suction of Roomba 600 series robots with 4 levels; New Atlas… on the Roomba Plus 505 Combo. Navigation: ClearView Pro LiDAR with 3D mapping; about 9 min to map 1,000 sq ft, stores up to 5 maps on the Roomba Max 775 Combo, ClearView Pro LiDAR, up to 5 maps, about 9 min to map 1,000 sq ft (iRobot); Tom's Guide… on the Roomba Plus 505 Combo. Obstacle avoidance: PrecisionVision AI camera recognizes cords, shoes and pet waste; Gizmodo saw it drag a… on the Roomba Max 775 Combo, PrecisionVision AI for cords, socks, shoes and pet waste (iRobot); New Atlas saw it… on the Roomba Plus 505 Combo.

Full reviews: [iRobot Roomba Max 775 Combo](https://robotsforthat.com/robot/irobot-roomba-max-775-combo/index.md), [iRobot Roomba Plus 505 Combo](https://robotsforthat.com/robot/irobot-roomba-plus-505-combo/index.md)