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  3. ExVac 880 Wisor vs X21 SW

Mamibot ExVac 880 Wisor vs Medion X21 SW

What ExVac 880 Wisor does better (5) and where X21 SW wins (6) — every spec side by side.

Mamibot ExVac 880 Wisor
Mamibot · 2021ExVac 880 Wisor
4.6Score
5 advantages≈ US$160
Higher score
vs
Medion X21 SW
Medion · 2024X21 SW
4.5Score
6 advantages≈ US$180
3.2Cleaning power2.3
5.0Navigation3.0
5.3Mopping3.9
3.4Battery4.2
Dimensions

Size comparison

ExVac 880 WisorX21 SW
330 × 98330320 × 93320
ExVac 880 WisorX21 SWDifference
Height98 mm93 mm+5 mm
Width / diameter330 mm320 mm+10 mm
Length330 mm320 mm+10 mm
Weight3 kg3 kg=

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

Why is ExVac 880 Wisor better than X21 SW?

  1. Dustbin (robot)600 ml vs 250 ml2.4×
  2. Threshold climbing20 mm vs 18 mm+11%
  3. Cleaning area per charge200 m² vs 120 m²+67%
  4. Water tank (robot)370 ml vs 250 ml+48%
  5. Charging time240 min vs 300 min+25%

Why is X21 SW better than ExVac 880 Wisor?

  1. Base stationCharging dock vs Auto-empty dock
  2. Runtime110 min vs 150 min+36%
  3. Suction power2,880 Pa vs 3,000 Pa+4%
  4. Battery capacity2,600 mAh vs 3,200 mAh+23%
  5. Height98 mm vs 93 mm+5%
  6. Noise level70 dB vs 68 dB+3%
Specifications

Side by side

Medion X21 SWMedion X21 SW≈ US$1804.5
Suction & cleaning
Suction power2,880 Pa3,000 Pa
Dustbin (robot)600 ml250 ml
Main brushSingle main brushSingle main brush
Side brushes22
Carpet detection—Yes
HEPA filterYesYes
Noise level70 dB68 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 mm18 mm
No-go zones / virtual wallsYesYes
Room mapping & room selection—Yes
Mopping
Mop typeMop padMop pad
Water tank (robot)370 ml250 ml
Base station
Base stationCharging dockAuto-empty dock
Auto-empty dust station—Yes
Dust bag (dock)—2.5 l
Battery & runtime
Battery capacity2,600 mAh3,200 mAh
Runtime110 min150 min
Charging time240 min300 min
Cleaning area per charge200 m²120 m²
Size & weight
Width / diameter330 mm320 mm
Length330 mm320 mm
Height98 mm93 mm
Weight3 kg3 kg
ShapeRoundRound
ColoursWhite, RosegoldWhite, Silver
App & smart home
App controlYesYes
Voice assistantsAmazon Alexa, Google Assistant—
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