Winner
20% OFF
$799.99
$999.99
Updated November 2026
Data from the official Roborock and Shark sites.
2026 verdict
For most hard-floor homes the Roborock Qrevo Curv 2 Flow is the better robot vacuum of this pair, and its self-rinsing roller mop is the deciding feature.
It moves 20,000 Pa, runs 242 minutes against 180 on the Shark PowerDetect ThermaCharged RV2920XE, and its dock washes and dries the roller automatically. The Shark PowerDetect ThermaCharged RV2920XE answers with mop-pad washing at 185 F that owners rate highly, a two-year warranty against one, and a larger 379 ml onboard bin, but it publishes no suction rating and carries no Matter support. The Roborock is also the lower-priced of the two, while the Shark has owner reports of docking and water-dispensing faults. Pick the Roborock Qrevo Curv 2 Flow for value and a roller mop, and the Shark PowerDetect ThermaCharged RV2920XE if heated pad washing and the longer warranty appeal.
Works with
Connectivity
- Wi-Fi 2.4 GHz
vs
9% OFF
$1089.95
$1199.99
Works with
Connectivity
- Wi-Fi 2.4 GHz
News by email
Still comparing? Get what's new by email
New releases and the smart home news worth knowing, in your inbox.
No spam. Unsubscribe in one click.
The biggest differences
Where these two are furthest apart, and by how much.
- Warranty2×Shark PowerDetect ThermaCharged RV2920XE2 years vs 1 year
- Battery Life+34%Roborock Qrevo Curv 2 Flow242 minutes vs 180 minutes
- Onboard Dustbin Capacity+17%Shark PowerDetect ThermaCharged RV2920XE379ml vs 325ml
| Feature | Roborock Qrevo Curv 2 Flow | Shark PowerDetect ThermaCharged RV2920XE | Winner |
|---|---|---|---|
| Price | $799.99 | $1089.95 | Roborock Qrevo Curv 2 Flow |
| Rating | 4.2 | 4.1 | Roborock Qrevo Curv 2 Flow |
| Warranty | 1 year | 2 years | Shark PowerDetect ThermaCharged RV2920XE |
| Battery Life | 242 minutes | 180 minutes | Roborock Qrevo Curv 2 Flow |
| Integrations | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Google Home, Alexa, Home Assistant | Roborock Qrevo Curv 2 Flow |
| Onboard Dustbin Capacity | 325ml | 379ml | Shark PowerDetect ThermaCharged RV2920XE |
| Auto Recharge | YES | YES | Tie |
| Connectivity | 2.4 GHz WiFi | 2.4 GHz WiFi | 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
Mop type
The Roborock Qrevo Curv 2 Flow rinses its roller continuously with clean water so it never drags a dirty pad, while the Shark PowerDetect ThermaCharged RV2920XE uses mop pads washed at 185 F at the base. The roller scrubs better mid-run; the heated pad wash is the newer trick.
Runtime
The Roborock Qrevo Curv 2 Flow runs 242 minutes against 180 on the Shark PowerDetect ThermaCharged RV2920XE, a clear edge for a larger single-floor home.
Warranty
The Shark PowerDetect ThermaCharged RV2920XE is covered for two years and the Roborock Qrevo Curv 2 Flow for one, which matters given the docking and water-dispensing faults owners report on the Shark.
Smart home reach
The Roborock Qrevo Curv 2 Flow adds Matter through an announced over-the-air update, which brings Apple Home and SmartThings. The Shark PowerDetect ThermaCharged RV2920XE supports Alexa, Google Home and Home Assistant only.
Onboard bin
The Shark PowerDetect ThermaCharged RV2920XE carries a larger onboard bin, 379 ml against 325 ml on the Roborock Qrevo Curv 2 Flow, a small edge in how much it holds between dock visits.
Which one to buy if
- you want a roller mop that rinses itself
The Roborock Qrevo Curv 2 Flow feeds its roller clean water continuously, so it never smears a used pad.
- you clean a large floor on one charge
The Roborock Qrevo Curv 2 Flow runs 242 minutes against 180 on the Shark PowerDetect ThermaCharged RV2920XE.
- heated mop-pad washing is the draw
The Shark PowerDetect ThermaCharged RV2920XE washes its pads at 185 F, which owners say is the difference between cleaning and pushing dirt around.
- you want the longer warranty
The Shark PowerDetect ThermaCharged RV2920XE is covered for two years against one on the Roborock Qrevo Curv 2 Flow.
- you want the lower price
The Roborock Qrevo Curv 2 Flow is the more affordable of the two.
Winner
20% OFF
$799.99
$999.99
- + Price: $799.99
- + Rating: 4.2
- + Battery Life: 242 minutes
- - Warranty: 1 year vs 2 years
- - Onboard Dustbin Capacity: 325ml vs 379ml
9% OFF
$1089.95
$1199.99
- + Warranty: 2 years
- + Onboard Dustbin Capacity: 379ml
- - Price: $1089.95 vs $799.99
- - Rating: 4.1 vs 4.2
What owners say
Owners of both robots rate the self-cleaning dock as the reason to buy, but they diverge on how reliable it is. Roborock Qrevo Curv 2 Flow owners describe running it daily for weeks without rescuing it, praise the roller mop that rinses as it works, and note it does not hug baseboards or reach under low cabinet kicks, with a minority reporting streaking on hardwood. Shark PowerDetect ThermaCharged RV2920XE owners, many with pets or a crawling baby, call it their best purchase and praise quiet operation, accurate mapping and whole-home coverage on one charge, yet report frequent failures to leave or return to the dock, a mop self-clean that falsely flags obstructions, and on some units water dispensing stopping within months.
Frequently Asked Questions
Which is better overall: Roborock Qrevo Curv 2 Flow or Shark PowerDetect ThermaCharged RV2920XE?
The Roborock Qrevo Curv 2 Flow for most homes, with a self-rinsing roller mop, 242-minute runtime and a lower price. The Shark PowerDetect ThermaCharged RV2920XE is worth it for heated 185 F pad washing and its two-year warranty.
What is the biggest difference between the Roborock Qrevo Curv 2 Flow and the Shark PowerDetect ThermaCharged RV2920XE?
Their mop systems. The Roborock Qrevo Curv 2 Flow rinses a roller continuously while it scrubs, while the Shark PowerDetect ThermaCharged RV2920XE uses pads heated to 185 F at the dock and has no published suction rating.
Do the Roborock Qrevo Curv 2 Flow and the Shark PowerDetect ThermaCharged RV2920XE work with Apple Home?
The Roborock Qrevo Curv 2 Flow does, through Matter, which also brings SmartThings once the over-the-air update lands. The Shark PowerDetect ThermaCharged RV2920XE supports Alexa, Google Home and Home Assistant only.
Which one runs longer: Roborock Qrevo Curv 2 Flow or Shark PowerDetect ThermaCharged RV2920XE?
The Roborock Qrevo Curv 2 Flow, at 242 minutes against 180 on the Shark PowerDetect ThermaCharged RV2920XE, which is why it suits a larger single-floor home better.
Who should buy the Roborock Qrevo Curv 2 Flow?
Hard-floor homes that want a self-rinsing roller mop, a long runtime, Matter support and a lower price.
Who should buy the Shark PowerDetect ThermaCharged RV2920XE?
Buyers drawn to heated 185 F mop-pad washing and a two-year warranty, who can accept the docking and water-dispensing faults owners report.
Spotted something wrong on this page? Tell us and we will fix it.
Our store on AmazonShop our ideas on AmazonLists of the smart home setups we would put together ourselves, ready to add to your Amazon cart.Shop on AmazonFull comparison table
Compare all 179 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.
- 179 Robot Vacuums
- 47 specs compared
- 42 filters
- Robot Vacuums
Freo X Ultra
- Robot Vacuums
DEEBOT X2 COMBO
- Robot Vacuums
Roomba Plus 678 Combo Robot + AutoWash Dock
- Robot Vacuums
Roomba Max 875 Combo Robot + AutoWash Dock
- Robot Vacuums
DEEBOT T90S Omni
- Robot Vacuums
L60 Pro Ultra
- Robot Vacuums
Freo 20 Edge
- Robot Vacuums
DEEBOT X12S OmniCyclone
- Robot Vacuums
DEEBOT X11S PRO Omni
- Robot Vacuums
DEEBOT X11 PRO Omni
- Robot Vacuums
L8000 Plus
- Robot Vacuums
DEEBOT X12S PRO Omni
- Robot Vacuums
Aqua20 Pro Ultra Roller X Complete
- Robot Vacuums
S8 Max Ultra
- Robot Vacuums
L40 Ultra Gen 2
- Robot Vacuums
DEEBOT T30S Combo
- Robot Vacuums
DEEBOT T80S Omni
- Robot Vacuums
DEEBOT T90 MAX Plus Omni
- Robot Vacuums
DEEBOT T90 Omni
- Robot Vacuums
DEEBOT T90 Pro Omni
- Robot Lawn Mowers
RockMow X115H
- Robot Lawn Mowers
RockMow X120H
- Robot Lawn Mowers
RockMow X130H
- Robot Lawn Mowers
RockNeo Q110H
- Robot Vacuums
Q10 S5+
- Robot Vacuums
Q10 X5+
- Robot Vacuums
Q5 Max+
- Robot Vacuums
Q7 L5
- Robot Vacuums
Q7 M5+
- Robot Vacuums
Q7 M5
- Robot Vacuums
Q8 Max+
- Robot Vacuums
Qrevo 2 Pro
- Robot Vacuums
Qrevo Curv 2 Pro
- Robot Vacuums
Qrevo Curv S5X
- Robot Vacuums
Qrevo CurvX
- Robot Vacuums
Qrevo Edge 2
- Robot Vacuums
Qrevo Edge 3 Pro
- Robot Vacuums
Qrevo Edge S5A
- Robot Vacuums
Qrevo Plus
- Robot Vacuums
Qrevo Pro
- Air Purifiers
BreatheClear HP162
- Air Purifiers
BreatheClear Max HP362
- Air Purifiers
NeverChange Air Purifier HP152
- Robot Vacuums
AI Ultra AV2501AE
- Robot Vacuums
AI Ultra AV2511AE
- Robot Vacuums
AV2501S AI Ultra Robot Vacuum
- Robot Vacuums
Matrix Plus 2-in-1
- Robot Vacuums
Matrix Plus UR2650WS
- Robot Vacuums
Navigator 2-in-1 Robot Vacuum and Mop
- Robot Vacuums
Navigator AV2110S
- Robot Vacuums
Navigator AV2120
- Robot Vacuums
Navigator RV2120AE
- Robot Vacuums
PowerDetect 2-in-1
- Robot Vacuums
PowerDetect NeverTouch Pro RV2820ZE
- Robot Vacuums
PowerDetect Self-Empty
- Robot Vacuums
PowerDetect UV Reveal
- Robot Vacuums
Stratos NeverTouch RV2720ZE