Updated September 2026
Data from Amazon and official iRobot site.
2026 verdict
Between iRobot Roomba Plus 515 Combo Robot + AutoWash Dock and iRobot Roomba 205, iRobot Roomba Plus 515 Combo Robot + AutoWash Dock is the better overall pick in 2026, leading on battery life, mopping functionality, and auto mop washing.
It builds its lead on battery life, mopping functionality, and auto mop washing, then backs it up with a stronger showing on auto mop drying and Self-Emptying dustbin. There is still a case for iRobot Roomba 205, but mainly if price is what you value most. That is why iRobot Roomba Plus 515 Combo Robot + AutoWash Dock wins the verdict here.
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Winner
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| Feature | iRobot Roomba 205 | iRobot Roomba Plus 515 Combo Robot + AutoWash Dock | Winner |
|---|---|---|---|
| Price | $149.99 | $599.99 | iRobot Roomba 205 |
| Battery Life | 120 minutes | 295 minutes | 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 |
| Connectivity | 2.4 GHz WiFi, 5 GHz WiFi | 2.4 GHz WiFi, 5 GHz WiFi | Tie |
| Integrations | Google Home, Alexa | Google Home, Alexa | Tie |
| Navigation Type | Laser (LiDAR) | Laser (LiDAR) | Tie |
$149.99
- + Price: $149.99
- - Battery Life: 120 minutes vs 295 minutes
- - Mopping Functionality: NO vs YES
Winner
14% OFF
$599.99
$699.99
- + Battery Life: 295 minutes
- + Mopping Functionality: YES
- + Auto Mop Washing: YES
- - Price: $599.99 vs $149.99
Frequently Asked Questions
Which is better overall: iRobot Roomba 205 or iRobot Roomba Plus 515 Combo Robot + AutoWash Dock?
iRobot Roomba Plus 515 Combo Robot + AutoWash Dock has the stronger overall profile in this comparison, especially for battery life, mopping functionality, and auto mop washing.
What is the biggest difference between iRobot Roomba 205 and iRobot Roomba Plus 515 Combo Robot + AutoWash Dock?
Price is one of the clearest differences: iRobot Roomba 205 lists $149.99, while iRobot Roomba Plus 515 Combo Robot + AutoWash Dock lists $599.99.
Which one looks better on price?
iRobot Roomba 205 is listed at $149.99, while iRobot Roomba Plus 515 Combo Robot + AutoWash Dock is listed at $599.99. iRobot Roomba 205 (better spec).
Who should buy iRobot Roomba 205?
Choose iRobot Roomba 205 if your priority is price and that matters more than battery life.
Who should buy iRobot Roomba Plus 515 Combo Robot + AutoWash Dock?
Choose iRobot Roomba Plus 515 Combo Robot + AutoWash Dock if your priority is battery life and mopping functionality and that matters more than price.
Full comparison table
Compare all 148 Robot Vacuums side by side
You are looking at two of them. The full table lines up all Robot Vacuums in the catalog with the same specs, so you can filter by what you need and sort by price or rating.
- 148 Robot Vacuums
- 46 specs compared
- 41 filters
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20% OFF$999.99$799.00
NarwalFreo 20
$1099.99
NarwalFlow
$999.99
EufyE25
35% OFF$999.99$649.99
EufyE28
32% OFF$999.99$679.99
EufyOmni S2
$1599.99
NarwalFreo Z10 Ultra
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13% OFF$799.99$699.99
Eufy11S MAX
11% OFF$279.99$249.99
EufyOmni C28
38% OFF$799.99$499.99
EufyX10 Pro Omni
31% OFF$699.99$479.99
iRobotRoomba 705X
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TikomG8000 Max
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3.4(850)$249.99
Robot VacuumsiRobotRoomba 105 Combo
4.2(26,696)47% OFF$319.99$169.99
Robot VacuumsiRobotRoomba 105
4.2(31,572)$179.99
Robot VacuumsiRobotRoomba 105X Combo
4.1(13,178)$327.92
Robot VacuumsiRobotRoomba 105X
4.2(26,522)$291.97- Robot VacuumsiRobot
Roomba 205
4.2(11,534)$149.99 
Robot VacuumsiRobotRoomba 415X
4.2(11,888)6% OFF$799.99$749.99
Robot VacuumsiRobotRoomba 505X
4.2(8,849)21% OFF$999.99$789.99- Robot VacuumsiRobot
Roomba 705X
4.3(13,213)$1399.99 
Robot VacuumsiRobotRoomba Combo 10 Max robot + AutoWash dock
3.0(267)49% OFF$1399.00$709.86
Robot VacuumsiRobotRoomba Max 705 Combo
3.6(4,803)39% OFF$1299.99$799.00
Robot VacuumsiRobotRoomba Max 705
3.8(696)8% OFF$899.99$829.98
Robot VacuumsiRobotRoomba Max 715 Vac Robot + AutoEmpty Dock
3.6(11)14% OFF$699.99$599.99
Robot VacuumsiRobotRoomba Max 775 Combo Robot + AutoWash Dock
3.5(13)20% OFF$999.99$799.99
Robot VacuumsiRobotRoomba Plus 405
3.9(10,208)13% OFF$799.99$699.95
Robot VacuumsiRobotRoomba Plus 415 Combo Robot + AutoWash Dock
4.2(16)17% OFF$599.99$499.99
Robot VacuumsiRobotRoomba Plus 504
3.8(643)$664.99
Robot VacuumsiRobotRoomba Plus 505
4.2(8,839)30% OFF$999.99$699.99
Robot VacuumsiRobotRoomba Plus 507 Combo Robot + AutoWash Dock
$999.99- Robot VacuumsiRobot
Roomba Plus 515 Combo Robot + AutoWash Dock
4.2(4,132)14% OFF$699.99$599.99