Robot Vacuums · Head to head

iRobot Roomba Plus 515 Combo Robot + AutoWash Dock vs Roborock Saros 20 Flow

Full Robot Vacuums comparison in 2026

Updated September 2026
Data from Amazon and official iRobot and Roborock sites.
2026 verdict
In this 2026 Roborock Saros 20 Flow vs iRobot Roomba Plus 515 Combo Robot + AutoWash Dock comparison, Roborock Saros 20 Flow comes out ahead thanks to integrations and suction power.
Roborock Saros 20 Flow
Winner
Roborock Saros 20 Flow
$1699.99
Buy on Amazon USACheck price
The comparison tilts its way because of integrations and suction power, with its broader overall balance keeping it in front. iRobot Roomba Plus 515 Combo Robot + AutoWash Dock remains a niche alternative if price and connectivity matter more than the rest of the comparison. That is why the final call still favors Roborock Saros 20 Flow.
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FeatureiRobot Roomba Plus 515 Combo Robot + AutoWash DockRoborock Saros 20 FlowWinner
Price$599.99$1699.99iRobot Roomba Plus 515 Combo Robot + AutoWash Dock
Connectivity2.4 GHz WiFi, 5 GHz WiFi2.4 GHz WiFiiRobot Roomba Plus 515 Combo Robot + AutoWash Dock
IntegrationsGoogle Home, AlexaGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterRoborock Saros 20 Flow
Suction Power22000Pa36000PaRoborock Saros 20 Flow
Rating4.24.2Tie
Warranty1 year1 yearTie
Auto RechargeYESYESTie
Navigation TypeLaser (LiDAR)Laser (LiDAR)Tie
Obstacle DetectionYESYESTie
Cliff DetectionYESYESTie
Multi-Room MappingYESYESTie
No-Go ZonesYESYESTie

Frequently Asked Questions

Which is better overall: iRobot Roomba Plus 515 Combo Robot + AutoWash Dock or Roborock Saros 20 Flow?

Roborock Saros 20 Flow has the stronger overall profile in this comparison, especially for integrations and suction power.

What is the biggest difference between iRobot Roomba Plus 515 Combo Robot + AutoWash Dock and Roborock Saros 20 Flow?

Price is one of the clearest differences: iRobot Roomba Plus 515 Combo Robot + AutoWash Dock lists $599.99, while Roborock Saros 20 Flow lists $1699.99.

Which one looks better on price?

iRobot Roomba Plus 515 Combo Robot + AutoWash Dock is listed at $599.99, while Roborock Saros 20 Flow is listed at $1699.99. iRobot Roomba Plus 515 Combo Robot + AutoWash Dock (better spec).

Who should buy iRobot Roomba Plus 515 Combo Robot + AutoWash Dock?

Choose iRobot Roomba Plus 515 Combo Robot + AutoWash Dock if your priority is price and connectivity and that matters more than integrations.

Who should buy Roborock Saros 20 Flow?

Choose Roborock Saros 20 Flow if your priority is integrations and suction power and that matters more than price.

Full comparison table

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