Updated October 2026
Data from Amazon and official iRobot site.
2026 verdict
A self-emptying, self-washing dock against a compact compactor decides this pair: the iRobot Roomba Plus 515 Combo Robot + AutoWash Dock is the better robot vacuum over the iRobot Roomba 205.
It is rated at 22,000Pa against 7,000Pa, runs about 200 minutes against 120, and its AutoWash dock empties the bin and washes and heat-dries the mop pads, all in an 84mm body that reaches under beds. The iRobot Roomba 205 answers with a smaller footprint and a lower price, and it needs no dock plumbing, but it is vacuum-only. Choose the iRobot Roomba Plus 515 Combo Robot + AutoWash Dock for hands-off vacuuming and mopping, and the iRobot Roomba 205 when compact simplicity matters more.
vs
Winner
14% OFF
$599.00
$699.99
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| Feature | iRobot Roomba 205 | iRobot Roomba Plus 515 Combo Robot + AutoWash Dock | Winner |
|---|---|---|---|
| Battery Life | 120 minutes | 200 minutes | iRobot Roomba Plus 515 Combo Robot + AutoWash Dock |
| Connectivity | 2.4 GHz WiFi, 5 GHz WiFi, Bluetooth | 2.4 GHz WiFi, Bluetooth | iRobot Roomba 205 |
| Suction Power | 7000Pa | 22000Pa | iRobot Roomba Plus 515 Combo Robot + AutoWash Dock |
| Mopping Functionality | NO | YES | iRobot Roomba Plus 515 Combo Robot + AutoWash Dock |
| Auto Mop Washing | NO | YES | iRobot Roomba Plus 515 Combo Robot + AutoWash Dock |
| Auto Mop Drying | NO | YES | iRobot Roomba Plus 515 Combo Robot + AutoWash Dock |
| Self-Emptying Dustbin | NO | YES | iRobot Roomba Plus 515 Combo Robot + AutoWash Dock |
| Rating | 4.2 | 4.2 | Tie |
| Warranty | 1 year | 1 year | Tie |
| Auto Recharge | YES | YES | Tie |
| Integrations | Google Home, Alexa | Google Home, Alexa | Tie |
| Navigation Type | Laser (LiDAR) | Laser (LiDAR) | Tie |
What the differences mean
Mopping
The iRobot Roomba Plus 515 Combo Robot + AutoWash Dock mops and lifts its pads on carpet. The iRobot Roomba 205 is vacuum-only, with no mop or detergent. For hard floors with spills, the combo is the more useful machine.
Dock
The iRobot Roomba Plus 515 Combo Robot + AutoWash Dock empties the bin and washes and heat-dries the pads. The iRobot Roomba 205 empties by hand and compacts internally, with no self-emptying station.
Suction
The iRobot Roomba Plus 515 Combo Robot + AutoWash Dock is rated at 22,000Pa against 7,000Pa for the iRobot Roomba 205, so it pulls much more from carpet. On hard floors both cope.
Runtime
The iRobot Roomba Plus 515 Combo Robot + AutoWash Dock is rated about 200 minutes and the iRobot Roomba 205 about 120, so the combo covers a larger floor before recharging.
Footprint
The iRobot Roomba 205 uses a compact charging base, while the iRobot Roomba Plus 515 Combo Robot + AutoWash Dock needs a large station. The Roomba 205 is the easier fit in a tight utility space.
Which one to buy if
- you want mopping and a dock that cleans itself
The iRobot Roomba Plus 515 Combo Robot + AutoWash Dock empties, washes and heat-dries its pads on its own.
- you want strong pickup on hard floors and low rugs
The iRobot Roomba Plus 515 Combo Robot + AutoWash Dock is rated at 22,000Pa, well above the iRobot Roomba 205's 7,000Pa.
- you want a compact base with no dock tower
The iRobot Roomba 205 charges on a small base and compacts dust internally at a much lower price.
- you clean a single small floor and want simplicity
The iRobot Roomba 205 needs no mop or water tank and is the simpler machine to own.
- + Connectivity: 2.4 GHz WiFi, 5 GHz WiFi, Bluetooth
- - Battery Life: 120 minutes vs 200 minutes
- - Suction Power: 7000Pa vs 22000Pa
Winner
14% OFF
$599.00
$699.99
- + Battery Life: 200 minutes
- + Suction Power: 22000Pa
- + Mopping Functionality: YES
- - Connectivity: 2.4 GHz WiFi, Bluetooth vs 2.4 GHz WiFi, 5 GHz WiFi, Bluetooth
What owners say
Owners of both robots value LiDAR mapping that cleans in rows and a straightforward app, and both groups want light daily upkeep. iRobot Roomba Plus 515 Combo Robot + AutoWash Dock owners call the suction very good on hard floors and low rugs and like the dock that empties, washes and heat-dries the pads; their warnings are 2.4GHz-only setup, a mop that is only decent and pads that snag on cords. iRobot Roomba 205 owners praise the compact base and the DustCompactor that reduces emptying, but battery life is their recurring caveat, with several needing more than one recharge per level.
Price history compared
Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.
- iRobot Roomba 205
- iRobot Roomba Plus 515 Combo Robot + AutoWash Dock
Loading price history...
Frequently Asked Questions
Which is better overall: iRobot Roomba 205 or iRobot Roomba Plus 515 Combo Robot + AutoWash Dock?
The iRobot Roomba Plus 515 Combo Robot + AutoWash Dock, for a home that wants vacuuming and mopping automated. It has far more suction, a longer runtime and a dock that washes and heat-dries the pads. The iRobot Roomba 205 is the compact, cheaper, vacuum-only option.
What is the biggest difference between the iRobot Roomba 205 and the iRobot Roomba Plus 515 Combo Robot + AutoWash Dock?
Mopping and the dock. The iRobot Roomba Plus 515 Combo Robot + AutoWash Dock mops and empties and washes its pads automatically, while the iRobot Roomba 205 is vacuum-only and compacts dust inside the robot on a small base.
Which robot has more suction?
The iRobot Roomba Plus 515 Combo Robot + AutoWash Dock, rated at 22,000Pa against 7,000Pa for the iRobot Roomba 205. The gap shows most on carpet and against pet hair, while hard-floor cleaning is closer.
Does the iRobot Roomba 205 have a self-emptying dock?
No. The iRobot Roomba 205 compacts debris internally and empties by hand, though less often thanks to the compactor. The iRobot Roomba Plus 515 Combo Robot + AutoWash Dock is the one of this pair with a self-emptying station.
Who should buy the iRobot Roomba 205?
Buyers who want a compact, affordable vacuum for a small home and do not need mopping or a dock tower. The iRobot Roomba 205 is the simpler machine of the pair.
Who should buy the iRobot Roomba Plus 515 Combo Robot + AutoWash Dock?
Homes with pets and mostly hard floors that want mopping and dock maintenance automated, and buyers who want more suction. The iRobot Roomba Plus 515 Combo Robot + AutoWash Dock is the more capable machine.
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