3i S10 Ultra review: 118 specs compared

The comprehensive evaluation from Vacuum Wars highlights the 3i S10 Ultra as an ambitious flagship robot vacuum designed to solve routine floor care maintenance. The machine combines an immense 13,000 Pa suction motor with an active cylindrical roller mop that continuously self-cleans during operation. Its standout technical achievement is an integrated water distillation system that purifies wastewater. This design eliminates the need for frequent freshwater refilling by the user. Dual side sweepers and an extending edge mechanism deliver exceptional debris pickup along baseboards. On the negative side, the distillation mechanism requires several hours to complete a full cycle. The bulky base station occupies substantial floor space, and the system shows reduced efficiency in dry indoor environments.

In an extensive hands-on review, Lifehacker explores the self-sufficient capabilities of the 3i S10 Ultra robot vacuum and mop. The testing highlights its groundbreaking base station, which extracts ambient moisture from the air and distills used water. This process achieves genuine autonomy without frequent tank servicing. Dual rubber rollers resist hair tangles and lift dirt effortlessly from tiles and hardwood floors, while laser navigation charts dependable cleaning routes. The machine also demonstrates superior edge cleaning along perimeter walls. Nevertheless, the bulky base tower weighs around fifty pounds and demands substantial dedicated floor area. The vacuum chassis is also slightly taller than competing models, which leads to navigation difficulties across raised doorway thresholds and underneath lower cabinet kickboards.

A direct comparative analysis by Lifehacker pits the 3i S10 Ultra against the low-profile Roborock Saros 10R to reveal contrasting design philosophies. The 3i S10 Ultra stands out with its heavy-duty water recycling tower, which distills greywater to provide unmatched mopping autonomy without plumbing connections. Its heavy roller mop exerts strong downward pressure that dislodges dried kitchen stains far more effectively than standard vibrating cloths. Conversely, the Roborock Saros 10R features an ultra-slim body under eight centimeters with retractable LiDAR. This low profile allows the Roborock to navigate beneath beds where the 3i cannot enter. The primary trade-off centers on dimensions and maintenance priorities. The 3i requires a massive footprint, while the Saros 10R sacrifices automated water distillation for superior clearance agility.

Testing conducted by Freshly Charged examines the high-end automation of the 3i S10 Ultra robot vacuum and mop. The publication praises the atmospheric moisture extraction system, which condenses air humidity and recycles greywater to keep the scrubbing reservoir full. Backed by 13,000 Pa of suction, the robot clears heavy grit, fine dust, and pet dander from hardwood crevices without hesitation. Its intelligent obstacle avoidance system identifies footwear and stray cables reliably via structured light sensors. However, prospective buyers must accommodate a heavy, oversized docking station that looks imposing in compact apartments. The companion mobile application also feels somewhat unpolished, with nested configuration menus that complicate schedule changes and suction adjustments.

According to the detailed assessment by Vacuum Chef, the 3i S10 Ultra delivers a transformative automated floor scrubbing experience via its twelve-in-one docking station. The base sanitizes mopping equipment with hot air drying, empties dust collections, and uses onboard thermal distillation to recycle dirty mop water indefinitely. Floor washing results on polished stone and linoleum are remarkably streak-free thanks to continuous fresh water washing across the roller. A robust 5200 mAh battery pack provides up to three hours of uninterrupted runtime. In contrast, deep carpet cleaning results are merely average, as the brush roller is tailored primarily for hard surfaces. The software also exhibits limitations, notably lacking granular controls for independent exclusion zones during mixed vacuum and mop sessions.

Following a week of practical residential testing, ZDNet delivers an authoritative verdict on the water purification capabilities of the 3i S10 Ultra. The evaluation confirms that its silver-ion distillation chamber successfully neutralizes bacteria. This filtration enables recycled water to clean hard floors without foul odors or mineral residue. An integrated squeegee mechanism wipes surfaces clean behind the roller. This ensures rapid drying across high-traffic hallways. The automated docking station handles dust disposal and pad drying quietly and predictably. However, the machine commands a steep initial retail price that limits its appeal to premium smart home enthusiasts. The internal water recycling tanks also require routine seasonal descaling and filter checks to prevent mineral buildup over extended periods of operation.