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2026 comparison
Updated Jan 7, 2026
|Sources: Amazon, ManufacturerDreame L20 Ultra Robot Vacuum and Mop vs Roborock S7 Max Ultra Robot Vacuum & Mop
The Dreame L20 Ultra Robot Vacuum and Mop is the flagship option, while the Roborock S7 Max Ultra Robot Vacuum & Mop is a premium contender. If you're looking for unbeatable suction, the L20 Ultra's 7,000 Pa blows away the S7 Max's 5,500 Pa. In real-world use, that extra suction power means the Dreame L20 Ultra can pick up more dirt and debris, making it ideal for homes with pets. Plus, its impressive 6,400 mAh battery provides up to 260 minutes of runtime, so it can tackle large spaces without needing a recharge.
⚖️ Weight: 151.68 oz vs 165.79 oz⚙️ Suction: 7,000 Pa vs 5,500 Pa🕒 Runtime: 260 min vs 180 min
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Dreame L20 Ultra Robot Vacuum and Mop
★3.8
(454)•Amazon
Navigation:Pathfinder™ Smart Navigation (LiDAR + AI Action + 3D Structured Light for precise route planning).
Mapping:3D Mapping (Fast mapping, Matrix Map, Multi-level mapping up to 4 floors).
Obstacle Avoidance:AI Action + 3D Structured Light (Identifies 55+ obstacle types; LED fill lights for dark areas).
Suction Pa:7,000 Pa (Vormax™ Suction System)
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Roborock S7 Max Ultra Robot Vacuum & Mop
★4
(380)•Best Buy
Navigation:PreciSense LiDAR Navigation (Systematic mapping with adaptive route algorithms).
Mapping:LiDAR Mapping (3D Mapping, Matrix Map, Multi-level mapping up to 4 floors, Quick Mapping).
Obstacle Avoidance:Reactive Tech Obstacle Avoidance (Structured Light + Infrared; detects objects without using a camera/images).
Suction Pa:5,500 Pa (HyperForce Suction)
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Key spec differences
Only the specs that differ are shown here. Winners are highlighted when the data is clear.
Winner= clear advantage
Spec
Dreame L20 Ultra Robot Vacuum and Mop
Roborock S7 Max Ultra Robot Vacuum & Mop
Battery1 specs
Battery CapacityKey
Dreame L20 Ultra Robot Vacuum and Mop
14.4V / 6,400 mAh Lithium-ion (Fast Charging supported)
Roborock S7 Max Ultra Robot Vacuum & Mop
14.4V / 5200 mAh Lithium-ion
Design1 specs
Dimensions
Dreame L20 Ultra Robot Vacuum and Mop
13.78" (L) x 13.78" (W) x 4.09" (H)
Roborock S7 Max Ultra Robot Vacuum & Mop
13.78" (L) x 13.90" (W) x 3.80" (H)
+Full specs, pros, and cons
Everything side-by-side with ratings and the full spec list.
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Full specs, pros, and cons
Everything side-by-side with ratings and the full spec list.
Comparison: Dreame L20 Ultra Robot Vacuum and Mop vs Roborock S7 Max Ultra Robot Vacuum & Mop
Dreame L20 Ultra Robot Vacuum and Mop
★3.8(454)Amazon
Roborock S7 Max Ultra Robot Vacuum & Mop
★4(380)Best Buy
| Criterion | Dreame L20 Ultra Robot Vacuum and Mop | Roborock S7 Max Ultra Robot Vacuum & Mop |
|---|---|---|
| Rating | ★3.8(454)Amazon | ★4(380)Best Buy |
Navigation | Pathfinder™ Smart Navigation (LiDAR + AI Action + 3D Structured Light for precise route planning). | PreciSense LiDAR Navigation (Systematic mapping with adaptive route algorithms). |
Mapping | 3D Mapping (Fast mapping, Matrix Map, Multi-level mapping up to 4 floors). | LiDAR Mapping (3D Mapping, Matrix Map, Multi-level mapping up to 4 floors, Quick Mapping). |
Obstacle Avoidance | AI Action + 3D Structured Light (Identifies 55+ obstacle types; LED fill lights for dark areas). | Reactive Tech Obstacle Avoidance (Structured Light + Infrared; detects objects without using a camera/images). |
Suction Pa | 7,000 Pa (Vormax™ Suction System) | 5,500 Pa (HyperForce Suction) |
Brush System | Liftable Rubber Brush (Bristleless design to minimize hair tangles) + Side brush. | All-Rubber Floating Brush (Durable rubber fins resist hair tangles and adapt to uneven floors). |
Mopping | DuoScrub™ Mopping System (Dual rotary mops) with MopExtend™ (Extends mop pad to within 2mm of edges). | VibraRise® Sonic Mopping (Scrubbing up to 3,000 times/min with consistent downward pressure). |
Mop Lift | 0.41" (10.5 mm) Automatic Lift + Magnetic Mop Detachment (Automatically leaves mops in dock for high-pile carpets). | 0.20" (5 mm) Automatic Mop Lift (Raises mop when carpet is detected). |
Carpet Boost | Yes (Ultrasonic carpet detection; Auto-lift or Mop Detach modes). | Yes (Carpet Boost+ automatically increases suction; Deep Carpet Cleaning mode available). |
Battery | 14.4V / 6,400 mAh Lithium-ion (Fast Charging supported) | 14.4V / 5200 mAh Lithium-ion |
Runtime | Up to 260 min (Quiet Mode, Vacuum only or Mop only) | Up to 180 min (Quiet Mode) |
Charging Time | Approx. 4.5 hours (30% faster charging technology) | Approx. 4 hours |
Dustbin | 0.08 gal (300 mL) — Internal bin | 0.09 gal (350 mL) — Internal bin |
Water Tank | 0.02 gal (80 mL) — Internal tank (Auto-refilled by dock) | 0.05 gal (200 mL) — Internal tank (Auto-refilled by dock) |
Auto Empty | Yes | Yes |
Dock Type | Fully Automatic Base Station (Empties debris, washes mops, dries mops, refills water, adds solution). Tanks: 4.5L Clean / 4.0L Dirty / 3.2L Dust Bag. Dims: 23.8" x 16.7" x 19.6". | RockDock™ Ultra (Empty, Wash, Refill, Dry, Self-Cleaning). Tanks: 3.0L Clean / 2.5L Dirty / 2.5L Dust Bag. Dims: 16.6" x 19.4" x 16.5". |
Mop Wash | Yes (Automatic mop washing with detergent dosing) | Yes (Automatic mop washing with high-speed scrubbing brush) |
Mop Dry | Yes (Warm air drying) | Yes (Built-in Warm Air Drying) |
Filtration | E12 Rated Filter | E11 Rated Washable Filter |
Noise Level | Lowest 63 dB (A) | Approx. 67 dB (Balanced Mode) |
App Features | Dreamehome App (CleanGenius™, MopExtend settings, AI obstacle photos, Remote Video Control, Multi-floor maps). | Roborock App (Deep Carpet Cleaning, Clean Along Floor Direction, Pin-n-Go, No-Go Zones, Invisible Walls). |
Voice Assistants | Amazon Alexa, Google Assistant, Apple Siri Shortcuts. | Amazon Alexa, Google Home, Apple Siri Shortcuts. |
Multi Floor | Yes (Up to 4 map levels). | Yes (Up to 4 map levels). |
Threshold Climb | 0.79" (20 mm) | 0.79" (20 mm) |
Height | 4.09" (103.8 mm) | 3.80" (96.5 mm) |
Dimensions | 13.78" (L) x 13.78" (W) x 4.09" (H) | 13.78" (L) x 13.90" (W) x 3.80" (H) |
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Dreame L20 Ultra Robot Vacuum and Mop
Rating:★3.8(454)Amazon
Navigation:Pathfinder™ Smart Navigation (LiDAR + AI Action + 3D Structured Light for precise route planning).
Mapping:3D Mapping (Fast mapping, Matrix Map, Multi-level mapping up to 4 floors).
Obstacle Avoidance:AI Action + 3D Structured Light (Identifies 55+ obstacle types; LED fill lights for dark areas).
Suction Pa:7,000 Pa (Vormax™ Suction System)
Brush System:Liftable Rubber Brush (Bristleless design to minimize hair tangles) + Side brush.
Mopping:DuoScrub™ Mopping System (Dual rotary mops) with MopExtend™ (Extends mop pad to within 2mm of edges).
Mop Lift:0.41" (10.5 mm) Automatic Lift + Magnetic Mop Detachment (Automatically leaves mops in dock for high-pile carpets).
Carpet Boost:Yes (Ultrasonic carpet detection; Auto-lift or Mop Detach modes).
Battery:14.4V / 6,400 mAh Lithium-ion (Fast Charging supported)
Runtime:Up to 260 min (Quiet Mode, Vacuum only or Mop only)
Charging Time:Approx. 4.5 hours (30% faster charging technology)
Dustbin:0.08 gal (300 mL) — Internal bin
Water Tank:0.02 gal (80 mL) — Internal tank (Auto-refilled by dock)
Auto Empty:Yes
Dock Type:Fully Automatic Base Station (Empties debris, washes mops, dries mops, refills water, adds solution). Tanks: 4.5L Clean / 4.0L Dirty / 3.2L Dust Bag. Dims: 23.8" x 16.7" x 19.6".
Mop Wash:Yes (Automatic mop washing with detergent dosing)
Mop Dry:Yes (Warm air drying)
Filtration:E12 Rated Filter
Noise Level:Lowest 63 dB (A)
App Features:Dreamehome App (CleanGenius™, MopExtend settings, AI obstacle photos, Remote Video Control, Multi-floor maps).
Voice Assistants:Amazon Alexa, Google Assistant, Apple Siri Shortcuts.
Multi Floor:Yes (Up to 4 map levels).
Threshold Climb:0.79" (20 mm)
Height:4.09" (103.8 mm)
Dimensions:13.78" (L) x 13.78" (W) x 4.09" (H)
✓ Pros:
- • MopExtend™ technology physically extends the mop pad to clean edges and corners effectively
- • Magnetic Mop Detachment allows the robot to leave mop pads in the dock to keep high-pile carpets 100% dry
- • Massive 6,400 mAh battery offers extended runtime for large homes
- • High 7,000 Pa suction power (Vormax™) handles carpets exceptionally well
- • Base station is truly all-in-one, including automatic detergent dispensing
✗ Cons:
- • Base station is physically very large and requires significant floor space
- • Robot height (4.09") is taller than average, potentially limiting access under low furniture
- • Internal dustbin (300 mL) is smaller than competitors, relying heavily on auto-empty
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Roborock S7 Max Ultra Robot Vacuum & Mop
Rating:★4(380)Best Buy
Navigation:PreciSense LiDAR Navigation (Systematic mapping with adaptive route algorithms).
Mapping:LiDAR Mapping (3D Mapping, Matrix Map, Multi-level mapping up to 4 floors, Quick Mapping).
Obstacle Avoidance:Reactive Tech Obstacle Avoidance (Structured Light + Infrared; detects objects without using a camera/images).
Suction Pa:5,500 Pa (HyperForce Suction)
Brush System:All-Rubber Floating Brush (Durable rubber fins resist hair tangles and adapt to uneven floors).
Mopping:VibraRise® Sonic Mopping (Scrubbing up to 3,000 times/min with consistent downward pressure).
Mop Lift:0.20" (5 mm) Automatic Mop Lift (Raises mop when carpet is detected).
Carpet Boost:Yes (Carpet Boost+ automatically increases suction; Deep Carpet Cleaning mode available).
Battery:14.4V / 5200 mAh Lithium-ion
Runtime:Up to 180 min (Quiet Mode)
Charging Time:Approx. 4 hours
Dustbin:0.09 gal (350 mL) — Internal bin
Water Tank:0.05 gal (200 mL) — Internal tank (Auto-refilled by dock)
Auto Empty:Yes
Dock Type:RockDock™ Ultra (Empty, Wash, Refill, Dry, Self-Cleaning). Tanks: 3.0L Clean / 2.5L Dirty / 2.5L Dust Bag. Dims: 16.6" x 19.4" x 16.5".
Mop Wash:Yes (Automatic mop washing with high-speed scrubbing brush)
Mop Dry:Yes (Built-in Warm Air Drying)
Filtration:E11 Rated Washable Filter
Noise Level:Approx. 67 dB (Balanced Mode)
App Features:Roborock App (Deep Carpet Cleaning, Clean Along Floor Direction, Pin-n-Go, No-Go Zones, Invisible Walls).
Voice Assistants:Amazon Alexa, Google Home, Apple Siri Shortcuts.
Multi Floor:Yes (Up to 4 map levels).
Threshold Climb:0.79" (20 mm)
Height:3.80" (96.5 mm)
Dimensions:13.78" (L) x 13.90" (W) x 3.80" (H)
✓ Pros:
- • RockDock™ Ultra provides complete hands-free maintenance (wash, dry, empty, refill, self-clean)
- • VibraRise® mopping system scrubs effective on dried stains and lifts 5mm on carpets
- • Reactive Tech obstacle avoidance offers solid navigation without the privacy concerns of RGB cameras
- • High 5,500 Pa suction power handles carpets and pet hair effectively
- • Built-in warm air drying in the dock (an upgrade over the original S7 MaxV dock)
✗ Cons:
- • Lacks the advanced AI object recognition (RGB camera) found in the 'MaxV' series
- • Single rubber brush is slightly less effective on deep carpets than the S8's DuoRoller
- • Internal water tank (200 mL) and dustbin (350 mL) are smaller than average, relying on the dock
- • Dock footprint is substantial and requires significant floor space
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Which one is better?
The Dreame L20 Ultra Robot Vacuum and Mop is the better buy for most people - its 7,000 Pa suction power crushes the Roborock S7 Max Ultra's 5,500 Pa. That said, grab the Roborock S7 Max if you prefer a lighter design at 3.80" tall versus the Dreame's 4.09".
Who should buy each?
Choose the Dreame L20 Ultra Robot Vacuum and Mop if: you have pets and need serious suction, you want a longer runtime of up to 260 minutes, or you prefer advanced edge cleaning with MopExtend technology.
Choose the Roborock S7 Max Ultra Robot Vacuum & Mop if: you need a more compact design that fits under low furniture, you prioritize hands-free maintenance with RockDock Ultra, or you want a reliable option for deep carpet cleaning. (165.79 oz weight)
Conclusion
Dreame L20 Ultra Robot Vacuum and Mop and Roborock S7 Max Ultra Robot Vacuum & Mop are both solid choices. Match the strengths above to your budget and workflow to make the best call.
Frequently Asked Questions
+Which has better value?
Dreame L20 Ultra Robot Vacuum and Mop excels if you value mopextend™ technology physically extends the mop pad to clean edges and corners effectively. Roborock S7 Max Ultra Robot Vacuum & Mop is better if you prioritize rockdock™ ultra provides complete hands-free maintenance (wash, dry, empty, refill, self-clean). Pick based on your budget and daily use.
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+Do newer models exist?
Check release timelines from the manufacturers and compare pricing before you buy. We refresh this page when major updates land.
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