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- S1 HydroJet vs RS20 Max
eufy S1 HydroJet vs EZVIZ RS20 Max
What S1 HydroJet does better (5) and where RS20 Max wins (6) — every spec side by side.
vs
5.7Cleaning power7.3
7.6Navigation7.6
9.6Mopping7.9
5.0Base station9.2
7.9Battery8.4
Dimensions
Size comparison
S1 HydroJetRS20 Max
| S1 HydroJet | RS20 Max | Difference | |
|---|---|---|---|
| Height | 96 mm | 101 mm | −5 mm |
| Width / diameter | 347 mm | 365 mm | −18 mm |
| Length | 347 mm | 365 mm | −18 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is S1 HydroJet better than RS20 Max?
- Mop typeRoller mop vs Rotating mop pads
- Runtime216 min vs 190 min+14%
- Water tank (robot)240 ml vs 100 ml2.4×
- Height96 mm vs 101 mm+5%
- Noise level60 dB vs 65 dB+8%
Why is RS20 Max better than S1 HydroJet?
- Suction power8,000 Pa vs 13,000 Pa+62%
- Dust bag (dock)2.5 l vs 5 l2×
- Clean water tank (dock)3 l vs 5 l+67%
- Cleaning area per charge183 m² vs 300 m²+64%
- Dustbin (robot)250 ml vs 350 ml+40%
- Charging time240 min vs 180 min+33%
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | 8,000 Pa | 13,000 Pa |
| Dustbin (robot) | 250 ml | 350 ml |
| Main brush | Single main brush | Single main brush |
| Anti-tangle brush | — | Yes |
| Side brushes | 2 | 2 |
| Carpet detection | Yes | Yes |
| Dirt detection | — | Yes |
| Noise level | 60 dB | 65 dB |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | Laser (LiDAR) |
| Navigation sensors | LiDAR laser (LDS), dToF laser, Cliff sensors | LiDAR laser (LDS), Wall sensor, Cliff sensors, Ultrasonic sensor |
| Obstacle avoidance | AI camera | AI camera |
| Threshold climbing | 20 mm | 20 mm |
| No-go zones / virtual walls | Yes | Yes |
| Room mapping & room selection | Yes | Yes |
| Mopping | ||
| Mop type | Roller mop | Rotating mop pads |
| Mop lifting on carpets | Yes | — |
| Mop lift height | 12 mm | — |
| Automatic mop removal | — | Yes |
| Water tank (robot) | 240 ml | 100 ml |
| Base station | ||
| Base station | All-in-one dock (empty + wash) | All-in-one dock (empty + wash) |
| Auto-empty dust station | Yes | Yes |
| Dust bag (dock) | 2.5 l | 5 l |
| Mop washing in the dock | Yes | Yes |
| Hot-water mop washing | — | Yes |
| Hot-air mop drying | Yes | Yes |
| Automatic water refill | Yes | Yes |
| Clean water tank (dock) | 3 l | 5 l |
| Dirty water tank (dock) | 2 l | 4.2 l |
| Battery & runtime | ||
| Battery capacity | 5,200 mAh | 5,200 mAh |
| Runtime | 216 min | 190 min |
| Charging time | 240 min | 180 min |
| Cleaning area per charge | 183 m² | 300 m² |
| Size & weight | ||
| Width / diameter | 347 mm | 365 mm |
| Length | 347 mm | 365 mm |
| Height | 96 mm | 101 mm |
| Weight | — | 4 kg |
| Shape | Round | Round |
| Colours | Black | White |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | Amazon Alexa, Google Assistant | Amazon Alexa, Google Assistant, Apple Siri |
| Live camera view / video call | — | Yes |
