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  3. PowerDetect Self-Empty vs Robot Vacuum S40C

Shark PowerDetect Self-Empty vs Xiaomi Robot Vacuum S40C

What PowerDetect Self-Empty does better (2) and where Robot Vacuum S40C wins (1) — every spec side by side.

Shark PowerDetect Self-Empty
4.0Score
2 advantages
vs
Xiaomi Robot Vacuum S40C
Xiaomi · 2025Robot Vacuum S40C
4.6Score
1 advantage≈ US$140
Higher score
3.5Navigation5.8
2.2Battery2.1

Why is PowerDetect Self-Empty better than Robot Vacuum S40C?

  1. Base stationAuto-empty dock vs Charging dock
  2. Runtime110 min vs 100 min+10%

Why is Robot Vacuum S40C better than PowerDetect Self-Empty?

  1. Dustbin (robot)300 ml vs 520 ml+73%
Specifications

Side by side

Suction & cleaning
Suction power—5,000 Pa
Dustbin (robot)300 ml520 ml
Main brush—Single main brush
Side brushes—1
Noise level—63 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 climbing—20 mm
No-go zones / virtual walls—Yes
Room mapping & room selectionYesYes
Mopping
Mop type—Mop pad
Water tank (robot)—260 ml
Base station
Base stationAuto-empty dockCharging dock
Auto-empty dust stationYes—
Battery & runtime
Battery capacity—2,600 mAh
Runtime110 min100 min
Charging time—360 min
Size & weight
Width / diameter—340 mm
Length—340 mm
Height—97 mm
Weight—3.4 kg
ShapeRoundRound
ColoursWhiteWhite
App & smart home
App control—Yes
Voice assistants—Amazon Alexa, Google Assistant
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