Robot Vacuums · Head to head

iRobot Roomba Plus 507 Combo Robot + AutoWash Dock vs iRobot Roomba Plus 678 Combo Robot + AutoWash Dock

Full Robot Vacuums comparison in 2026

Updated November 2026
Data from the official iRobot site.
2026 verdict
iRobot Roomba Plus 678 Combo Robot + AutoWash Dock edges out iRobot Roomba Plus 507 Combo Robot + AutoWash Dock in 2026, led by price and suction power.
iRobot Roomba Plus 678 Combo Robot + AutoWash Dock
Winner
iRobot Roomba Plus 678 Combo Robot + AutoWash Dock
$899.99
Buy on Amazon USA
It wins the broader comparison through price and suction power, while its broader overall balance helps confirm the result. Pick iRobot Roomba Plus 507 Combo Robot + AutoWash Dock only when connectivity is the deciding factor for your setup. That is why the final call still favors iRobot Roomba Plus 678 Combo Robot + AutoWash Dock.
Works with
Connectivity
  • Wi-Fi 2.4/5 GHz
vs
Works with
Connectivity
  • Wi-Fi 2.4 GHz
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FeatureiRobot Roomba Plus 507 Combo Robot + AutoWash DockiRobot Roomba Plus 678 Combo Robot + AutoWash DockWinner
Price$999.99$899.99iRobot Roomba Plus 678 Combo Robot + AutoWash Dock
Connectivity2.4 GHz WiFi, 5 GHz WiFi2.4 GHz WiFiiRobot Roomba Plus 507 Combo Robot + AutoWash Dock
Suction Power7000Pa30000PaiRobot Roomba Plus 678 Combo Robot + AutoWash Dock
Warranty1 year1 yearTie
Auto RechargeYESYESTie
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterTie
Navigation TypeLaser (LiDAR)Laser (LiDAR)Tie
Obstacle DetectionYESYESTie
Cliff DetectionYESYESTie
Multi-Room MappingYESYESTie
No-Go ZonesYESYESTie
Carpet CleaningYESYESTie

Frequently Asked Questions

Which is better overall: iRobot Roomba Plus 507 Combo Robot + AutoWash Dock or iRobot Roomba Plus 678 Combo Robot + AutoWash Dock?

iRobot Roomba Plus 678 Combo Robot + AutoWash Dock has the stronger overall profile in this comparison, especially for price and suction power.

What is the biggest difference between iRobot Roomba Plus 507 Combo Robot + AutoWash Dock and iRobot Roomba Plus 678 Combo Robot + AutoWash Dock?

Price is one of the clearest differences: iRobot Roomba Plus 507 Combo Robot + AutoWash Dock lists $999.99, while iRobot Roomba Plus 678 Combo Robot + AutoWash Dock lists $899.99.

Which one looks better on price?

iRobot Roomba Plus 507 Combo Robot + AutoWash Dock is listed at $999.99, while iRobot Roomba Plus 678 Combo Robot + AutoWash Dock is listed at $899.99. iRobot Roomba Plus 678 Combo Robot + AutoWash Dock (better spec).

Who should buy iRobot Roomba Plus 507 Combo Robot + AutoWash Dock?

Choose iRobot Roomba Plus 507 Combo Robot + AutoWash Dock if your priority is connectivity and that matters more than price.

Who should buy iRobot Roomba Plus 678 Combo Robot + AutoWash Dock?

Choose iRobot Roomba Plus 678 Combo Robot + AutoWash Dock if your priority is price and suction power and that matters more than connectivity.

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