Live nowPrime Day 2026October 6 to 7, 2026Ends in--d--h--m--sSee the deals
Robot Vacuums · Head to head

Shark PowerDetect Self-Empty vs Shark PowerDetect ThermaCharged RV2920XE

Full Robot Vacuums comparison in 2026

Updated October 2026
Data from Amazon and official Shark site.
2026 verdict
Should this newer PowerDetect model win?
Shark PowerDetect ThermaCharged RV2920XE
Winner
Shark PowerDetect ThermaCharged RV2920XE
$1099.95$1199.998% OFF

Last recorded price

Buy on Amazon USA
The Shark PowerDetect ThermaCharged RV2920XE is the robot vacuum to choose when the dock should wash a mop, not only empty dirt. It adds mopping with pad washing, drying and a carpet lift, a 180 minute battery against 110 minutes, a 2 year warranty against 1 year, and a 379ml onboard bin against 189ml. The Shark PowerDetect Self-Empty keeps the same LiDAR mapping, obstacle and cliff sensors, and the same Alexa, Google Home and Home Assistant support, and it is the more affordable vacuum-only machine. Pick the Shark PowerDetect ThermaCharged RV2920XE for wood and tile that still need washing, and the Shark PowerDetect Self-Empty when pet hair is the only job.
vs
Deals by email

Robot Vacuum prices change while you decide

We follow prices across the catalog and email you the best deals we find.

Smart home deals and news, straight to your inbox

Price drops, new releases and the smart home news worth knowing.

No spam. Unsubscribe in one click.

Your subscription could not be saved. Please try again.
Please enter a valid email address.
Your subscription has been successful.
FeatureShark PowerDetect Self-EmptyShark PowerDetect ThermaCharged RV2920XEWinner
Price$399.99$1099.95Shark PowerDetect Self-Empty
Rating4.24.3Shark PowerDetect ThermaCharged RV2920XE
Warranty1 year2 yearsShark PowerDetect ThermaCharged RV2920XE
Battery Life110 minutes180 minutesShark PowerDetect ThermaCharged RV2920XE
Mopping FunctionalityNOYESShark PowerDetect ThermaCharged RV2920XE
Auto Mop WashingNOYESShark PowerDetect ThermaCharged RV2920XE
Auto Mop DryingNOYESShark PowerDetect ThermaCharged RV2920XE
Onboard Dustbin Capacity189ml379mlShark PowerDetect ThermaCharged RV2920XE
Auto RechargeYESYESTie
Connectivity2.4 GHz WiFi2.4 GHz WiFiTie
IntegrationsGoogle Home, Alexa, Home AssistantGoogle Home, Alexa, Home AssistantTie
Navigation TypeLaser (LiDAR)Laser (LiDAR)Tie

What the differences mean

Mop station

The Shark PowerDetect ThermaCharged RV2920XE mops, then washes and dries the pads and lifts them on carpet, and it accepts detergent without an automatic dispenser. The Shark PowerDetect Self-Empty does not mop, so spills and sticky film stay until you handle them. That is the whole reason to move up.

Runtime and charging

The Shark PowerDetect ThermaCharged RV2920XE is rated for 180 minutes and recharges in 4 hours. The Shark PowerDetect Self-Empty is rated for 110 minutes and recharges in 6 hours. On a large single floor, the shorter robot is the one that goes home mid-job.

Warranty

The Shark PowerDetect ThermaCharged RV2920XE carries a 2 year warranty and the Shark PowerDetect Self-Empty a 1 year warranty. The extra year matters on a dock that also pumps water, which is the part owners of the newer model already argue with.

Onboard bin

Before the base empties it, the Shark PowerDetect ThermaCharged RV2920XE holds 379ml and the Shark PowerDetect Self-Empty holds 189ml. Both bases self-empty, and neither publishes the dock bag size, so the onboard figure is the capacity you can compare.

Which one to buy if

What owners say

Owners of both PowerDetect robots praise pet-hair pickup and mapped, scheduled routes, and both groups run into a SharkClean app that feels plain plus a first-day Wi-Fi setup that can stall. They then notice different hardware. Shark PowerDetect Self-Empty owners talk about NeverStuck lifting over thresholds and rug edges, a taller body that stays clear of low furniture, and a bagless base they leave for weeks, while they also mention missed spots and bumping. Shark PowerDetect ThermaCharged RV2920XE owners, often parents and pet households, single out hot mop washing, quiet runs and floors they stopped mopping by hand, and they complain about the robot failing to leave or return to the dock, false mop-cleaning obstructions, and water that stopped dispensing on some units within months.

Upgrading from the Shark PowerDetect Self-Empty?

Moving up from the Shark PowerDetect Self-Empty to the Shark PowerDetect ThermaCharged RV2920XE keeps LiDAR mapping, the self-emptying base, and Alexa, Google Home and Home Assistant. What changes is the job. The newer robot mops, washes and dries the pads, runs 180 minutes instead of 110, holds 379ml onboard instead of 189ml, and ships with a 2 year warranty instead of 1 year. If the Shark PowerDetect Self-Empty already keeps pet hair down and you never wanted a mop, leave it. If you still mop wood or tile yourself, or the shorter battery is the limit, the Shark PowerDetect ThermaCharged RV2920XE is the PowerDetect that takes that work.

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.

  • Shark PowerDetect Self-Empty
  • Shark PowerDetect ThermaCharged RV2920XE

Loading price history...

Frequently Asked Questions

Which Shark PowerDetect should you buy, the Shark PowerDetect Self-Empty or the Shark PowerDetect ThermaCharged RV2920XE?

The Shark PowerDetect ThermaCharged RV2920XE. It mops, washes and dries the pads, runs longer (180 minutes against 110) and carries a 2 year warranty. The Shark PowerDetect Self-Empty is the vacuum-only, more affordable PowerDetect.

What is the Shark RV2920XE next to the Shark PowerDetect Self-Empty?

RV2920XE is the model number of the Shark PowerDetect ThermaCharged RV2920XE. Against the Shark PowerDetect Self-Empty it adds mopping, pad washing and drying, a larger 379ml onboard bin, a longer battery and a 2 year warranty. Both use LiDAR and a self-emptying base.

Does the Shark PowerDetect ThermaCharged RV2920XE mop, and does the Shark PowerDetect Self-Empty?

Only the Shark PowerDetect ThermaCharged RV2920XE mops. It also washes and dries the pads and lifts them for carpet. The Shark PowerDetect Self-Empty is vacuum only, so it has no water tank and no mop maintenance.

How long do the Shark PowerDetect Self-Empty and the Shark PowerDetect ThermaCharged RV2920XE run?

The Shark PowerDetect ThermaCharged RV2920XE is rated for 180 minutes and recharges in about 4 hours. The Shark PowerDetect Self-Empty is rated for 110 minutes and recharges in about 6 hours. Both return to the dock to recharge on their own.

Who should buy the Shark PowerDetect Self-Empty?

Buyers who want a mapped, self-emptying robot vacuum for pet hair and do not want a mop, and who prefer the more affordable PowerDetect with Alexa, Google Home and Home Assistant.

Who should buy the Shark PowerDetect ThermaCharged RV2920XE?

Homes with wood or tile that still get mopped by hand, and anyone who wants the longer 180 minute run and the 2 year warranty on the PowerDetect dock.

Full comparison table

Compare all 163 Robot Vacuums side by side

You are looking at two of them. The full table lines up all Robot Vacuums in the catalog with the same specs, so you can filter by what you need and sort by price or rating.

  • 163 Robot Vacuums
  • 46 specs compared
  • 41 filters
Open the full comparison
More Robot Vacuums

Top Robot Vacuums to compare next

163 robot vacuums from 12 brands compared: Roborock, Dreame, Ecovacs, iRobot and more. Suction, navigation, mopping, self-emptying docks and prices.

All Robot Vacuums
Shark

More Shark products

A sharper look at other Shark products worth comparing.

Explore Shark
Independent · Not sponsoredBrands never pay for placement or rankings. Affiliate commissions never influence our comparisons.
© 2026 Smart Home Compared
Search