Robot Vacuums · Head to head

iRobot Roomba Max 775 Combo Robot + AutoWash Dock vs iRobot Roomba Plus 505

Full Robot Vacuums comparison in 2026

Updated September 2026
Data from Amazon and official iRobot site.
2026 verdict
In 2026, the recommendation leans toward iRobot Roomba Max 775 Combo Robot + AutoWash Dock over iRobot Roomba Plus 505, driven by battery life, connectivity, and suction power.
iRobot Roomba Max 775 Combo Robot + AutoWash Dock
Winner
iRobot Roomba Max 775 Combo Robot + AutoWash Dock
$799.99$999.9920% OFF
Buy on Amazon USACheck price
It separates itself most clearly on battery life, connectivity, and suction power, while still looking better on its broader overall balance. iRobot Roomba Plus 505 is the better fit only for buyers who prioritize price and rating above everything else here. That makes iRobot Roomba Max 775 Combo Robot + AutoWash Dock the clearer recommendation in 2026.
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FeatureiRobot Roomba Max 775 Combo Robot + AutoWash DockiRobot Roomba Plus 505Winner
Price$799.99$699.99iRobot Roomba Plus 505
Rating3.54.2iRobot Roomba Plus 505
Battery Life180 minutes120 minutesiRobot Roomba Max 775 Combo Robot + AutoWash Dock
Connectivity2.4 GHz WiFi, 5 GHz WiFi, Bluetooth2.4 GHz WiFi, 5 GHz WiFiiRobot Roomba Max 775 Combo Robot + AutoWash Dock
Suction Power30000Pa7000PaiRobot Roomba Max 775 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

Frequently Asked Questions

Which is better overall: iRobot Roomba Max 775 Combo Robot + AutoWash Dock or iRobot Roomba Plus 505?

iRobot Roomba Max 775 Combo Robot + AutoWash Dock has the stronger overall profile in this comparison, especially for battery life, connectivity, and suction power.

What is the biggest difference between iRobot Roomba Max 775 Combo Robot + AutoWash Dock and iRobot Roomba Plus 505?

Price is one of the clearest differences: iRobot Roomba Max 775 Combo Robot + AutoWash Dock lists $799.99, while iRobot Roomba Plus 505 lists $699.99.

Which one looks better on price?

iRobot Roomba Max 775 Combo Robot + AutoWash Dock is listed at $799.99, while iRobot Roomba Plus 505 is listed at $699.99. iRobot Roomba Plus 505 (better spec).

Who should buy iRobot Roomba Max 775 Combo Robot + AutoWash Dock?

Choose iRobot Roomba Max 775 Combo Robot + AutoWash Dock if your priority is battery life and connectivity and that matters more than price.

Who should buy iRobot Roomba Plus 505?

Choose iRobot Roomba Plus 505 if your priority is price and rating and that matters more than battery life.

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