Robot Vacuums · Head to head

iRobot Roomba 205 vs Shark PowerDetect Self-Empty

Full Robot Vacuums comparison in 2026

Updated September 2026
Data from Amazon and official iRobot and Shark sites.
2026 verdict
Vacuum-only robot vacuums live or die on price and runtime, and that's where the iRobot Roomba 205 gets the edge over the Shark PowerDetect Self-Empty.
iRobot Roomba 205
Winner
iRobot Roomba 205
$149.99
Buy on Amazon USA
The Roomba 205 costs less, runs longer per charge, and connects over both 2.4GHz and 5GHz Wi-Fi, where the PowerDetect Self-Empty is 2.4GHz only. The Shark PowerDetect Self-Empty answers with a genuine self-emptying dock (the Roomba 205 only compacts debris internally rather than emptying itself at a base) and Home Assistant support the Roomba 205 doesn't have. Neither one mops. Buyers who want the true set-and-forget convenience of a self-emptying dock should lean toward the Shark PowerDetect Self-Empty; those who want the longer runtime, lower price and Wi-Fi flexibility should pick the iRobot Roomba 205.
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FeatureiRobot Roomba 205Shark PowerDetect Self-EmptyWinner
Price$149.99$549.99iRobot Roomba 205
Battery Life120 minutes110 minutesiRobot Roomba 205
Connectivity2.4 GHz WiFi, 5 GHz WiFi2.4 GHz WiFiiRobot Roomba 205
IntegrationsGoogle Home, AlexaGoogle Home, Alexa, Home AssistantShark PowerDetect Self-Empty
Self-Emptying DustbinNOYESShark PowerDetect Self-Empty
Rating4.24.2Tie
Warranty1 year1 yearTie
Auto RechargeYESYESTie
Navigation TypeLaser (LiDAR)Laser (LiDAR)Tie
Obstacle DetectionYESYESTie
Cliff DetectionYESYESTie
Multi-Room MappingYESYESTie
Winner
iRobot

iRobot Roomba 205

$149.99
Buy on Amazon USA
  • + Price: $149.99
  • + Battery Life: 120 minutes
  • + Connectivity: 2.4 GHz WiFi, 5 GHz WiFi
  • - Integrations: Google Home, Alexa vs Google Home, Alexa, Home Assistant
  • - Self-Emptying Dustbin: NO vs YES

Frequently Asked Questions

Which is better overall: iRobot Roomba 205 or Shark PowerDetect Self-Empty?

The iRobot Roomba 205 wins overall on price, battery life and Wi-Fi band support, while the Shark PowerDetect Self-Empty counters with a true self-emptying dock and Home Assistant integration.

What is the biggest difference between the iRobot Roomba 205 and the Shark PowerDetect Self-Empty?

Self-emptying. The Shark PowerDetect Self-Empty has a dock that clears its bin automatically, while the iRobot Roomba 205 only compacts debris internally and still needs to be emptied by hand eventually.

Does either of these mop?

No, both the iRobot Roomba 205 and the Shark PowerDetect Self-Empty are vacuum-only robots with no mopping function.

Which one runs longer per charge?

The iRobot Roomba 205 has the longer rated battery life of the two, in addition to costing less.

Who should buy the Shark PowerDetect Self-Empty?

Buyers who want a true self-emptying dock and Home Assistant compatibility, and don't mind a shorter runtime and single-band Wi-Fi.

Who should buy the iRobot Roomba 205?

Buyers who want a lower price, longer runtime, and broader Wi-Fi band support, and are fine emptying the bin themselves occasionally.

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