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  3. D20 Plus vs Robot Vacuum S40 Pro

Dreame D20 Plus vs Xiaomi Robot Vacuum S40 Pro

What D20 Plus does better (5) and where Robot Vacuum S40 Pro wins (3) — every spec side by side.

Dreame D20 Plus
Dreame · 2025D20 Plus
7.4Score
5 advantages≈ US$250
Higher score
vs
Xiaomi Robot Vacuum S40 Pro
Xiaomi · 2025Robot Vacuum S40 Pro
6.7Score
3 advantages≈ US$220
7.3Cleaning power7.6
5.8Navigation5.0
5.2Mopping7.1
6.8Base station3.5
8.3Battery6.0
Dimensions

Size comparison

D20 PlusRobot Vacuum S40 Pro
350 × 97350355 × 99355
D20 PlusRobot Vacuum S40 ProDifference
Height97 mm99 mm−2 mm
Width / diameter350 mm355 mm−5 mm
Length350 mm355 mm−5 mm
Weight3.5 kg4.2 kg−0.7 kg

Drawn to the same scale from the official dimensions (front and side).

Why is D20 Plus better than Robot Vacuum S40 Pro?

  1. Runtime285 min vs 180 min+58%
  2. Base stationAuto-empty dock vs Charging dock
  3. Height97 mm vs 99 mm+2%
  4. Dustbin (robot)500 ml vs 430 ml+16%
  5. Water tank (robot)350 ml vs 310 ml+13%

Why is Robot Vacuum S40 Pro better than D20 Plus?

  1. Mop typeMop pad vs Rotating mop pads
  2. Suction power13,000 Pa vs 15,000 Pa+15%
  3. Noise level70 dB vs 65 dB+8%
Specifications

Side by side

Dreame D20 PlusDreame D20 Plus≈ US$2507.4
Suction & cleaning
Suction power13,000 Pa15,000 Pa
Dustbin (robot)500 ml430 ml
Main brushDual main brushesSingle main brush
Anti-tangle brush—Yes
Side brushes11
Extending side brush—Yes
Carpet detectionYesYes
HEPA filter—Yes
Noise level70 dB65 dB
Navigation & obstacles
NavigationLaser (LiDAR)Laser (LiDAR)
Navigation sensorsLiDAR laser (LDS), Cliff sensorsLiDAR laser (LDS), Wall sensor, Cliff sensors
Obstacle avoidanceBasic sensors (infrared / bumper)Basic sensors (infrared / bumper)
Threshold climbing20 mm20 mm
No-go zones / virtual wallsYes—
Room mapping & room selectionYesYes
Mopping
Mop typeMop padRotating mop pads
Mop lifting on carpets—Yes
Mop lift height—10 mm
Extending mop (edges)—Yes
Water tank (robot)350 ml310 ml
Base station
Base stationAuto-empty dockCharging dock
Auto-empty dust stationYes—
Dust bag (dock)5 l—
Battery & runtime
Battery capacity5,200 mAh5,200 mAh
Runtime285 min180 min
Charging time360 min360 min
Cleaning area per charge—180 m²
Size & weight
Width / diameter350 mm355 mm
Length350 mm355 mm
Height97 mm99 mm
Weight3.5 kg4.2 kg
ShapeRoundRound
ColoursWhiteWhite
App & smart home
App controlYesYes
Voice assistantsAmazon Alexa, Google AssistantAmazon Alexa, Google Assistant
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