Updated November 2026
Data from the official iRobot and Shark sites.
2026 verdict
Both wash their mops, so what tips it? The Shark PowerDetect ThermaCharged RV2920XE is the better robot vacuum and mop of the two, with 180 minutes of runtime and a two-year warranty.
The iRobot Roomba Max 705 Combo lasts 120 minutes per charge and carries one year of cover, but it answers with the wider smart home reach: Apple Home, SmartThings and Matter on top of Alexa, Google Home and Home Assistant, plus 5 GHz Wi-Fi, Bluetooth, a child lock and a dock that doses detergent on its own. Both map with LiDAR, lift the mop over carpet and empty themselves. Pick the Shark PowerDetect ThermaCharged RV2920XE to cover a whole home on one charge, and the iRobot Roomba Max 705 Combo if the robot has to live inside an Apple Home or Matter setup.
Connectivity
- Wi-Fi 2.4/5 GHz
- Bluetooth
vs
Winner
9% OFF
$1089.95
$1199.99
Works with
Connectivity
- Wi-Fi 2.4 GHz
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The biggest differences
Where these two are furthest apart, and by how much.
- Warranty2×Shark PowerDetect ThermaCharged RV2920XE2 years vs 1 year
- Battery Life+50%Shark PowerDetect ThermaCharged RV2920XE180 minutes vs 120 minutes
| Feature | iRobot Roomba Max 705 Combo | Shark PowerDetect ThermaCharged RV2920XE | Winner |
|---|---|---|---|
| Price | $1299.99 | $1089.95 | Shark PowerDetect ThermaCharged RV2920XE |
| Rating | 2.5 | 4.1 | Shark PowerDetect ThermaCharged RV2920XE |
| Warranty | 1 year | 2 years | Shark PowerDetect ThermaCharged RV2920XE |
| Battery Life | 120 minutes | 180 minutes | Shark PowerDetect ThermaCharged RV2920XE |
| Connectivity | 2.4 GHz WiFi, 5 GHz WiFi, Bluetooth | 2.4 GHz WiFi | iRobot Roomba Max 705 Combo |
| Integrations | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Google Home, Alexa, Home Assistant | iRobot Roomba Max 705 Combo |
| Local Control | YES | NO | iRobot Roomba Max 705 Combo |
| Auto Recharge | YES | YES | Tie |
| Navigation Type | Laser (LiDAR) | Laser (LiDAR) | Tie |
| Obstacle Detection | YES | YES | Tie |
| Cliff Detection | YES | YES | Tie |
| Multi-Room Mapping | YES | YES | Tie |
What the differences mean
Runtime per charge
The Shark PowerDetect ThermaCharged RV2920XE is rated for 180 minutes, the iRobot Roomba Max 705 Combo for 120. In a larger home that is the difference between one continuous run and a stop at the dock to recharge before the job is finished.
Smart home platforms
Both work with Alexa, Google Home and Home Assistant. Only the iRobot Roomba Max 705 Combo adds Apple Home, SmartThings and Matter, so it is the one that fits a home built around Siri or a Matter controller.
Detergent handling
The iRobot Roomba Max 705 Combo dock doses cleaning solution automatically. The Shark PowerDetect ThermaCharged RV2920XE accepts detergent but has no automatic dispenser, so solution goes into the tank by hand.
Warranty
Shark covers the Shark PowerDetect ThermaCharged RV2920XE for two years, iRobot covers the iRobot Roomba Max 705 Combo for one. On a robot with a washing dock and water pumps, the extra year is worth having.
Wi-Fi and pairing
The iRobot Roomba Max 705 Combo supports 5 GHz Wi-Fi and Bluetooth, while the Shark PowerDetect ThermaCharged RV2920XE is 2.4 GHz only. On a mixed dual-band router, the Roomba has fewer ways to trip up during setup.
Which one to buy if
- you want the whole floor done without a recharge stop
Its 180 minute battery outlasts the Roomba's 120, which owners say covers a whole home when it only vacuums.
- your home runs on Apple Home or a Matter controller
The iRobot Roomba Max 705 Combo supports Apple Home, SmartThings and Matter; the Shark supports none of the three.
- you never want to measure out floor cleaner
Its dock dispenses detergent automatically, while the Shark needs it added by hand.
- long-term cover matters more than extras
Two years of warranty against one is a real cushion on a robot with a washing dock.
$1299.99
- + Connectivity: 2.4 GHz WiFi, 5 GHz WiFi, Bluetooth
- + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
- + Local Control: YES
- - Price: $1299.99 vs $1089.95
- - Rating: 2.5 vs 4.1
Winner
9% OFF
$1089.95
$1199.99
- + Price: $1089.95
- + Rating: 4.1
- + Warranty: 2 years
- - Connectivity: 2.4 GHz WiFi vs 2.4 GHz WiFi, 5 GHz WiFi, Bluetooth
- - Integrations: Google Home, Alexa, Home Assistant vs Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
What owners say
Owners of both robots describe the same pattern: excellent results on the days it works, and a dock that becomes the weak point. Shark PowerDetect ThermaCharged RV2920XE owners single out finishing the whole home on a single charge when it only vacuums, mopping they call outstanding on wood and tile, quiet runs and floor-type detection, while their complaints are the robot failing to leave or return to the dock, false mop obstruction alerts and water dispensing that stops on some units. iRobot Roomba Max 705 Combo owners praise the wood-front design, LiDAR mapping they call scarily accurate and an extending roller mop that reaches edges, but many report false bin and dirty water errors, leaking docks, streaks on the floor and a buggy app with broken schedules.
Frequently Asked Questions
Which is better overall: iRobot Roomba Max 705 Combo or Shark PowerDetect ThermaCharged RV2920XE?
The Shark PowerDetect ThermaCharged RV2920XE, for most homes. It runs 180 minutes against 120, carries a two-year warranty against one, and mops with a heated wash and dry at the base. The iRobot Roomba Max 705 Combo is the better fit only when Apple Home, SmartThings or Matter support matters.
What is the biggest difference between the iRobot Roomba Max 705 Combo and the Shark PowerDetect ThermaCharged RV2920XE?
Runtime against platform support. The Shark PowerDetect ThermaCharged RV2920XE lasts longer per charge, while the iRobot Roomba Max 705 Combo works with Apple Home, SmartThings and Matter as well as Alexa, Google Home and Home Assistant, and doses detergent automatically.
Do both robots mop and clean their own mop?
Yes. The iRobot Roomba Max 705 Combo and the Shark PowerDetect ThermaCharged RV2920XE both mop, wash and dry the mop at the dock, lift it over carpet and empty their own dustbin. Only the Roomba also dispenses detergent automatically.
Does the Shark PowerDetect ThermaCharged RV2920XE work with Apple Home?
No. The Shark PowerDetect ThermaCharged RV2920XE works with Alexa, Google Home and Home Assistant, but not with Apple Home, SmartThings or Matter. The iRobot Roomba Max 705 Combo supports all six.
Who should buy the iRobot Roomba Max 705 Combo?
Homes built around Apple Home, SmartThings or Matter that want a LiDAR robot with a self-washing roller mop, automatic detergent dosing and a child lock, and that can live with a 120 minute battery and one year of warranty.
Who should buy the Shark PowerDetect ThermaCharged RV2920XE?
Anyone who wants a self-washing, self-emptying robot that covers a whole home on one charge when vacuuming, with two years of warranty, and whose smart home runs on Alexa, Google Home or Home Assistant.
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