Robot Vacuums · Head to head

iRobot Roomba Max 705 Combo vs iRobot Roomba Plus 505

Full Robot Vacuums comparison in 2026

Updated July 2026
Data from Amazon and official iRobot site.
2026 verdict
iRobot Roomba Plus 505 is the more complete option versus iRobot Roomba Max 705 Combo in 2026, helped most by price, rating, and battery life. It has the clearer edge on price, rating, and battery life, and it stays ahead on its broader overall balance. iRobot Roomba Max 705 Combo remains a niche alternative if connectivity and suction power matter more than the rest of the comparison. That is why iRobot Roomba Plus 505 wins the verdict here.
vs
FeatureiRobot Roomba Max 705 ComboiRobot Roomba Plus 505Winner
Price$799.00$499.00iRobot Roomba Plus 505
Rating3.64.2iRobot Roomba Plus 505
Battery Life75 minutes120 minutesiRobot Roomba Plus 505
Connectivity2.4 GHz WiFi, 5 GHz WiFi, Bluetooth2.4 GHz WiFi, 5 GHz WiFiiRobot Roomba Max 705 Combo
Suction Power13000Pa7000PaiRobot Roomba Max 705 Combo
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 705 Combo or iRobot Roomba Plus 505?

iRobot Roomba Plus 505 has the stronger overall profile in this comparison, especially for price, rating, and battery life.

What is the biggest difference between iRobot Roomba Max 705 Combo and iRobot Roomba Plus 505?

Price is one of the clearest differences: iRobot Roomba Max 705 Combo lists $799.00, while iRobot Roomba Plus 505 lists $499.00.

Which one looks better on price?

iRobot Roomba Max 705 Combo is listed at $799.00, while iRobot Roomba Plus 505 is listed at $499.00. iRobot Roomba Plus 505 (better spec).

Who should buy iRobot Roomba Max 705 Combo?

Choose iRobot Roomba Max 705 Combo if your priority is connectivity and suction power 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 connectivity.

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