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  3. Q7 L5 vs Robot Vacuum S40

Roborock Q7 L5 vs Xiaomi Robot Vacuum S40

What Q7 L5 does better (1) and where Robot Vacuum S40 wins (4) — every spec side by side.

Roborock Q7 L5
Roborock · 2025Q7 L5
5.5Score
1 advantage≈ US$120
vs
Xiaomi Robot Vacuum S40
Xiaomi · 2025Robot Vacuum S40
6.1Score
4 advantages≈ US$170
Higher score
6.8Cleaning power7.5
5.8Navigation5.8
4.2Mopping4.2
5.0Base station3.5
4.5Battery6.2
Dimensions

Size comparison

Q7 L5Robot Vacuum S40
325 × 99325340 × 98340
Q7 L5Robot Vacuum S40Difference
Height99 mm98 mm+1 mm
Width / diameter325 mm340 mm−15 mm
Length325 mm340 mm−15 mm
Weight4.7 kg4.1 kg+0.6 kg

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

Why is Q7 L5 better than Robot Vacuum S40?

  1. Noise level60 dB vs 63 dB+5%

Why is Robot Vacuum S40 better than Q7 L5?

  1. Suction power8,000 Pa vs 10,000 Pa+25%
  2. Battery capacity3,200 mAh vs 5,200 mAh+62%
  3. Runtime150 min vs 180 min+20%
  4. Dustbin (robot)400 ml vs 520 ml+30%
Specifications

Side by side

Roborock Q7 L5Roborock Q7 L5≈ US$1205.5
Suction & cleaning
Suction power8,000 Pa10,000 Pa
Dustbin (robot)400 ml520 ml
Main brushSingle main brushSingle main brush
Anti-tangle brushYesYes
Side brushes11
Carpet detectionYes—
Noise level60 dB63 dB
Navigation & obstacles
NavigationLaser (LiDAR)Laser (LiDAR)
Navigation sensorsLiDAR laser (LDS), Cliff sensorsLiDAR laser (LDS), Cliff sensors
Obstacle avoidanceBasic sensors (infrared / bumper)Basic sensors (infrared / bumper)
Threshold climbing20 mm20 mm
No-go zones / virtual wallsYesYes
Room mapping & room selectionYesYes
Mopping
Mop typeMop padMop pad
Water tank (robot)270 ml270 ml
Base station
Base stationCharging dockCharging dock
Dust bag (dock)2.7 l—
Battery & runtime
Battery capacity3,200 mAh5,200 mAh
Runtime150 min180 min
Charging time—360 min
Size & weight
Width / diameter325 mm340 mm
Length325 mm340 mm
Height99 mm98 mm
Weight4.7 kg4.1 kg
ShapeRoundRound
ColoursBlackWhite
App & smart home
App controlYesYes
Voice assistantsAmazon Alexa, Google AssistantAmazon Alexa, Google Assistant
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