Robot Vacuums · Head to head

iRobot Roomba Plus 505 vs Roborock S8 Max Ultra

Full Robot Vacuums comparison in 2026

Updated September 2026
Data from Amazon and official iRobot and Roborock sites.
2026 verdict
iRobot Roomba Plus 505 wins the 2026 matchup against Roborock S8 Max Ultra, mainly on price, rating, and connectivity.
iRobot Roomba Plus 505
Winner
iRobot Roomba Plus 505
$699.99$999.9930% OFF
Buy on Amazon USACheck price
Its strongest advantages show up in price, rating, and connectivity, with its broader overall balance helping widen the gap. Choose Roborock S8 Max Ultra only if battery life and suction power matter more to you than the broader advantage from iRobot Roomba Plus 505. That keeps the verdict firmly in favor of iRobot Roomba Plus 505.
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FeatureiRobot Roomba Plus 505Roborock S8 Max UltraWinner
Price$699.99$799.99iRobot Roomba Plus 505
Rating4.23.9iRobot Roomba Plus 505
Battery Life120 minutes180 minutesRoborock S8 Max Ultra
Connectivity2.4 GHz WiFi, 5 GHz WiFi2.4 GHz WiFiiRobot Roomba Plus 505
Suction Power7000Pa8000PaRoborock S8 Max Ultra
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 Plus 505 or Roborock S8 Max Ultra?

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

What is the biggest difference between iRobot Roomba Plus 505 and Roborock S8 Max Ultra?

Price is one of the clearest differences: iRobot Roomba Plus 505 lists $699.99, while Roborock S8 Max Ultra lists $799.99.

Which one looks better on price?

iRobot Roomba Plus 505 is listed at $699.99, while Roborock S8 Max Ultra is listed at $799.99. iRobot Roomba Plus 505 (better spec).

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.

Who should buy Roborock S8 Max Ultra?

Choose Roborock S8 Max Ultra if your priority is battery life and suction power and that matters more than price.

Full comparison table

Compare all 151 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.

  • 151 Robot Vacuums
  • 46 specs compared
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