Updated September 2026
Data from Amazon and official iRobot site.
2026 verdict
Across the 2026 comparison, iRobot Roomba Plus 515 Combo Robot + AutoWash Dock earns the nod over iRobot Roomba 105 Combo on the strength of battery life, connectivity, and auto mop washing.
The main reason it wins is battery life, connectivity, and auto mop washing, and auto mop drying and Self-Emptying dustbin strengthen that case. iRobot Roomba 105 Combo still makes sense if price is your priority, but most buyers should still lean toward iRobot Roomba Plus 515 Combo Robot + AutoWash Dock. As a general recommendation, iRobot Roomba Plus 515 Combo Robot + AutoWash Dock comes out on top.
vs
Winner
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| Feature | iRobot Roomba 105 Combo | iRobot Roomba Plus 515 Combo Robot + AutoWash Dock | Winner |
|---|---|---|---|
| Price | $169.99 | $599.99 | iRobot Roomba 105 Combo |
| Battery Life | 100 minutes | 295 minutes | iRobot Roomba Plus 515 Combo Robot + AutoWash Dock |
| Connectivity | 2.4 GHz WiFi | 2.4 GHz WiFi, 5 GHz WiFi | 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 |
| Obstacle Detection | YES | YES | Tie |
47% OFF
$169.99
$319.99
- + Price: $169.99
- - Battery Life: 100 minutes vs 295 minutes
- - Connectivity: 2.4 GHz WiFi vs 2.4 GHz WiFi, 5 GHz WiFi
Winner
14% OFF
$599.99
$699.99
- + Battery Life: 295 minutes
- + Connectivity: 2.4 GHz WiFi, 5 GHz WiFi
- + Auto Mop Washing: YES
- - Price: $599.99 vs $169.99
Frequently Asked Questions
Which is better overall: iRobot Roomba 105 Combo 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, connectivity, and auto mop washing.
What is the biggest difference between iRobot Roomba 105 Combo and iRobot Roomba Plus 515 Combo Robot + AutoWash Dock?
Price is one of the clearest differences: iRobot Roomba 105 Combo lists $169.99, while iRobot Roomba Plus 515 Combo Robot + AutoWash Dock lists $599.99.
Which one looks better on price?
iRobot Roomba 105 Combo is listed at $169.99, while iRobot Roomba Plus 515 Combo Robot + AutoWash Dock is listed at $599.99. iRobot Roomba 105 Combo (better spec).
Who should buy iRobot Roomba 105 Combo?
Choose iRobot Roomba 105 Combo 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 connectivity 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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EcovacsDEEBOT X11S OmniCyclone
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10% OFF$1299.99$1169.97
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EcovacsDEEBOT X11S PRO Omni
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
$1399.99
TikomG8000 Max
$129.99
Robot VacuumsiRobotRoomba 104
3.4(850)$249.99- Robot VacuumsiRobot
Roomba 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 VacuumsiRobotRoomba 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