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Robot Vacuums · Head to head

iRobot Roomba 205 vs Shark PowerDetect Self-Empty

Full Robot Vacuums comparison in 2026

Updated October 2026
Data from Amazon and official iRobot and Shark sites.
2026 verdict
Battery life, with 5 GHz Wi-Fi, points the iRobot Roomba 205 ahead of a self-empty vacuum.
iRobot Roomba 205
Winner
iRobot Roomba 205

Last recorded priceOct 5, 2026$249.95

Currently unavailable on Amazon USA
See on Amazon USA
It is rated for 120 minutes against 110, joins 5 GHz as well as 2.4 GHz, and it is the more affordable robot vacuum. Neither mops. The Shark PowerDetect Self-Empty is the one with a self-empty dock, plus Home Assistant, which the iRobot Roomba 205 does not list. Its suction is not published. The Roomba publishes 7,000 Pa. The Roomba also compacts debris inside the robot instead of using a tower. Pick the iRobot Roomba 205 for price, 5 GHz and a small base. Pick the Shark PowerDetect Self-Empty if you want the bin emptied for you.
Winner
iRobot Roomba 205
iRobot

iRobot Roomba 205

Prime exclusive deal
68% above its lowest price of the last 6 months ($149.00)

Last recorded priceOct 5, 2026$249.95

Currently unavailable on Amazon USA
See on Amazon USA
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FeatureiRobot Roomba 205Shark PowerDetect Self-EmptyWinner
Battery Life120 minutes110 minutesiRobot Roomba 205
Connectivity2.4 GHz WiFi, 5 GHz WiFi, Bluetooth2.4 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
No-Go ZonesYESYESTie

What the differences mean

Where the dirt goes

The Shark PowerDetect Self-Empty uses a self-empty dock, so the onboard 189 ml bin is cleared at the base. The iRobot Roomba 205 does not self-empty. It presses debris inside the robot and you still dump that bin, just less often, from a small charger rather than a tower. Its onboard volume is not published.

Wi-Fi and Home Assistant

The iRobot Roomba 205 joins 5 GHz and 2.4 GHz, with Alexa and Google Home, and a child lock. It does not list Home Assistant, Apple Home, SmartThings or Matter. The Shark PowerDetect Self-Empty is 2.4 GHz only and does list Home Assistant, along with Alexa and Google Home, with no child lock.

Runtime

The iRobot Roomba 205 is rated for 120 minutes and charges in 5 hours. The Shark PowerDetect Self-Empty is rated for 110 minutes and charges in 6 hours. Owners of the Roomba still say a whole level can take more than one charge. The spec edge is real and small.

Suction, carefully

The iRobot Roomba 205 publishes 7,000 Pa. The Shark PowerDetect Self-Empty does not publish suction, so that 7,000 Pa is not a win over the Shark. Both list carpet cleaning, LiDAR, obstacle detection and no-go zones. Neither mops.

Which one to buy if

Winner
iRobot

iRobot Roomba 205

Prime exclusive deal

Last recorded priceOct 5, 2026$249.95

Currently unavailable on Amazon USA
See on Amazon USA
  • + Battery Life: 120 minutes
  • + Connectivity: 2.4 GHz WiFi, 5 GHz WiFi, Bluetooth
  • - Integrations: Google Home, Alexa vs Google Home, Alexa, Home Assistant
  • - Self-Emptying Dustbin: NO vs YES
Shark

Shark PowerDetect Self-Empty

27% OFF
Prime exclusive deal
$399.99
$549.99

Last recorded price

Buy on Amazon USA
  • + Integrations: Google Home, Alexa, Home Assistant
  • + Self-Emptying Dustbin: YES
  • - Battery Life: 110 minutes vs 120 minutes
  • - Connectivity: 2.4 GHz WiFi vs 2.4 GHz WiFi, 5 GHz WiFi, Bluetooth

What owners say

Owners of the iRobot Roomba 205 and the Shark PowerDetect Self-Empty both talk about pet hair on carpet and hard floors, so pickup itself is not the exclusive claim. iRobot Roomba 205 owners single out an internal compactor that means fewer trips to the trash, and a small charging base instead of a tower, plus LiDAR they find quieter than older camera robots. They complain that a full floor often needs more than one charge, and that cords and thresholds still trap it. Shark PowerDetect Self-Empty owners single out threshold climbing and a bagless base, and they complain about a plain app and fiddly 2.4 GHz pairing.

Price history compared

Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.

  • iRobot Roomba 205
  • Shark PowerDetect Self-Empty

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Frequently Asked Questions

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

The iRobot Roomba 205, on price, a 120 minute runtime against 110, and 5 GHz Wi-Fi. The Shark PowerDetect Self-Empty is the one that self-empties and lists Home Assistant. Neither mops.

Shark vs iRobot Roomba: which self-empties?

The Shark PowerDetect Self-Empty does. The iRobot Roomba 205 does not. It uses an internal compactor and a small charging base, so you still empty the bin, less often than a plain dustbin.

Does the iRobot Roomba 205 work with Home Assistant?

No. The iRobot Roomba 205 lists Alexa and Google Home only among the usual platforms. The Shark PowerDetect Self-Empty lists Alexa, Google Home and Home Assistant. Neither lists Apple Home or Matter.

Which has more suction, the iRobot Roomba 205 or the Shark PowerDetect Self-Empty?

The iRobot Roomba 205 publishes 7,000 Pa. Suction for the Shark PowerDetect Self-Empty is not documented, so it is not a loss for the Shark. Both are vacuum-only LiDAR robots.

Who should buy the iRobot Roomba 205?

Buyers who want a compact charging base, 5 GHz Wi-Fi and a lower price, and who will empty a compacted bin themselves.

Who should buy the Shark PowerDetect Self-Empty?

Pet homes that want the dock to empty the vacuum, plus Home Assistant, and that can live with 2.4 GHz Wi-Fi and a plainer app.

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