Robot Vacuums · Head to head

iRobot Roomba 705X vs Shark PowerDetect ThermaCharged RV2920XE

Full Robot Vacuums comparison in 2026

Updated October 2026
Data from Amazon and official iRobot and Shark sites.
2026 verdict
iRobot Roomba 705X takes this comparison on price, connectivity and integrations.
iRobot Roomba 705X
Winner
iRobot Roomba 705X
$1399.99

Last recorded price

Buy on Amazon USA
Against the Shark PowerDetect ThermaCharged RV2920XE, it adds 5GHz Wi-Fi and a path to Apple HomeKit with Siri, Samsung SmartThings and Matter that the Shark does not offer. Both wash their roller mop with heated water and dry it with hot air at the dock, map with LiDAR and empty themselves for weeks at a stretch. Shark PowerDetect ThermaCharged RV2920XE answers with a longer two-year warranty against the Roomba's one, and a longer 180-minute runtime against 120. Choose the iRobot Roomba 705X for the deepest smart home reach, especially Apple Home and Matter, and the Shark PowerDetect ThermaCharged RV2920XE for a longer warranty and more runtime per charge.
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FeatureiRobot Roomba 705XShark PowerDetect ThermaCharged RV2920XEWinner
Price$1399.99$1089.95Shark PowerDetect ThermaCharged RV2920XE
Rating4.34.2iRobot Roomba 705X
Warranty1 year2 yearsShark PowerDetect ThermaCharged RV2920XE
Battery Life120 minutes180 minutesShark PowerDetect ThermaCharged RV2920XE
Connectivity2.4 GHz WiFi, 5 GHz WiFi, Bluetooth2.4 GHz WiFiiRobot Roomba 705X
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Home AssistantiRobot Roomba 705X
Auto RechargeYESYESTie
Navigation TypeLaser (LiDAR)Laser (LiDAR)Tie
Obstacle DetectionYESYESTie
Cliff DetectionYESYESTie
Multi-Room MappingYESYESTie
No-Go ZonesYESYESTie

What the differences mean

Wi-Fi bands and Apple ecosystem reach

iRobot Roomba 705X connects on both 2.4 GHz and 5 GHz Wi-Fi and adds Apple HomeKit with Siri, Samsung SmartThings and Matter. Shark PowerDetect ThermaCharged RV2920XE is 2.4 GHz only and stops at Google Home, Alexa and Home Assistant.

Warranty

Shark PowerDetect ThermaCharged RV2920XE is covered for two years. iRobot Roomba 705X carries one year.

Battery life

Shark PowerDetect ThermaCharged RV2920XE runs up to 180 minutes on a charge against the iRobot Roomba 705X's 120 minutes.

Documented suction figure

iRobot rates the Roomba 705X at 13,000 Pa. Shark does not publish a suction figure for the PowerDetect ThermaCharged RV2920XE, so the two cannot be compared on that number.

Which one to buy if

Winner
iRobot

iRobot Roomba 705X

Prime exclusive deal
$1399.99

Last recorded price

Buy on Amazon USA
  • + Rating: 4.3
  • + Connectivity: 2.4 GHz WiFi, 5 GHz WiFi, Bluetooth
  • + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
  • - Price: $1399.99 vs $1089.95
  • - Warranty: 1 year vs 2 years

What owners say

Shark PowerDetect ThermaCharged RV2920XE owners are notably positive: parents run it nightly once a baby starts crawling, pet households say floors they used to mop by hand now stay clean on their own, and they praise quiet operation, accurate mapping and reliable detection of carpet versus hardwood. The recurring complaints are the robot failing to leave or return to the dock reliably, the mop self-cleaning cycle falsely reporting an obstruction that needs manual intervention to clear, and water dispensing stopping altogether on some units within a few months of use.

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 705X
  • Shark PowerDetect ThermaCharged RV2920XE

Loading price history...

Frequently Asked Questions

Which is better overall: iRobot Roomba 705X or Shark PowerDetect ThermaCharged RV2920XE?

The iRobot Roomba 705X takes the overall win, mainly on wider connectivity and smart home integrations. The Shark PowerDetect ThermaCharged RV2920XE offsets that with a longer warranty and a longer runtime.

What is the biggest difference between the Roomba 705X and the Shark PowerDetect ThermaCharged RV2920XE?

Smart home reach. The Roomba 705X adds 5GHz Wi-Fi, Apple HomeKit with Siri, SmartThings and Matter, none of which the Shark PowerDetect ThermaCharged RV2920XE offers. The Shark answers with a longer warranty and runtime instead.

Which has the longer warranty?

The Shark PowerDetect ThermaCharged RV2920XE, covered for two years against the iRobot Roomba 705X's one year.

Do the Roomba 705X and the Shark PowerDetect ThermaCharged RV2920XE have similar battery life?

No. The Shark PowerDetect ThermaCharged RV2920XE is rated for 180 minutes of runtime on a single charge, against 120 minutes for the iRobot Roomba 705X.

Who should buy the iRobot Roomba 705X?

Apple households, Siri users, and anyone who wants the widest smart home integration list on a robot vacuum.

Who should buy the Shark PowerDetect ThermaCharged RV2920XE?

Buyers who prioritize a longer warranty and a longer runtime over the breadth of smart home integrations.

Full comparison table

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