eufy S1 Robot Vacuum and Mop Combo - HydroJet Roller Mop System

Our review of the eufy S1 finds it best suited to households that want a true vacuum-and-mop hybrid for daily maintenance, especially homes with pets and hard floors. The single biggest reason to consider the S1 is its HydroJet "Always Clean Mop" and the All-in-One UniClean Station that automate mop cleaning and maintenance, saving time and reducing manual intervention compared with typical robot mop systems. It is a thoughtful combination of powerful suction and an auto-washing station that aims to keep both floors and the mop head cleaner between runs.

Key Features

• HydroJet Roller Mop: The rolling mop spins at 170 RPM and applies about 1 kg of downward pressure to lift stubborn stains effectively from hard floors.
• Dual Reservoir Design: Separate clean and wastewater tanks keep the mop continuously refreshed with clean water and detergent while containing used water away from the cleaned surfaces.
• 10-in-1 UniClean Station: The station auto-empties, auto-washes, auto-refills, auto-dries and dispenses detergent to reduce hands-on maintenance.
• Incredible Suction: Strong vacuum power and a detangling brush help remove deep-seated dust and reduce hair tangles for easier upkeep in pet homes.
• Obstacle Avoidance and Mapping: AI-enabled avoidance with an RGB camera recognizes 100+ obstacles and supports multi-level mapping for organized cleaning routes.
• Mop Auto-Retraction: The mop lifts 12 mm to clear carpets when needed, improving carpet cleaning without leaving moisture behind.

Who It's For

The eufy S1 is ideal for busy households that need regular floor maintenance across hard surfaces and short-pile carpets, and for pet owners who value a powerful vacuum with robust mopping that is largely automated by the UniClean Station. It suits users who prefer touch controls on the robot itself as well as those who want multi-level mapping and smart obstacle avoidance for complex floor plans.

Those who should look elsewhere include shoppers with very thick or high-pile carpets over 12 mm and buyers who require long, uninterrupted battery life as a primary concern; customer feedback indicates battery runtime can be a point of mixed experience. Also note the S1 requires a 2.4GHz Wi-Fi network for setup in many regions.

Pros & Cons

Pros

• Automated UniClean Station streamlines emptying, washing, drying and detergent refill to minimize hands-on maintenance.
• HydroJet roller mop with pressure and spinning action removes tougher stains better than passive pads.
• Strong suction and a detangling brush improve pet hair pickup and reduce manual brush cleaning.

Cons

• Some users report mixed results for mop functionality in very stubborn stains or tricky layouts, so performance can vary by home.
• Battery life has received mixed feedback and may not meet expectations for very large homes without recharging.

Specifications

Our Verdict

The eufy S1 is a compelling choice for people who want an integrated vacuum-and-mop system that reduces routine maintenance through automation. Its HydroJet roller mop and UniClean Station meaningfully cut down on manual cleaning tasks, and the strong suction plus detangling brush make it a practical pick for pet homes. Buyers of very large houses or homes with high-pile carpets should weigh battery and mop limitations against the convenience gains.

Frequently Asked Questions

Does the UniClean Station handle detergent automatically?
Yes, the station dispenses detergent automatically from its reservoir as part of the auto-wash routine.

Will the mop damage carpets?
The mop auto-retracts 12 mm to clear medium and short-pile carpets; it is not recommended for carpets thicker than 12 mm.

What Wi-Fi is required for setup?
The S1 requires a 2.4GHz Wi-Fi network or a dual-band router configured to support 2.4GHz; it does not support 5GHz-only setups.