Compare 3i S10 Ultra Robot Vacuum and Mop vs Roborock S8 + Robot Vacuum

Included extras like the cleaning solution, carbon rod, and small cleaning tools are useful, though not a major differentiator beyond supporting dock and mop upkeep.

Included essentials (spare bag/manuals/mop cloth) are generally described as sufficient to get started immediately. Some wish for more extras, but most consider the in-box kit practical rather than lavish.

Design is repeatedly described as sleek and modern, with finishes that blend well in living spaces. Some owners note glossy surfaces can show scratches over time, depending on use and contact with furniture.

AI-driven features like DirtScan-style dirt detection, automation, and voice assistants are repeatedly praised, though smart-home integrations can be limited for room-specific commands on some platforms.

The app and automation features are repeatedly cited as a core strength: scheduling, room/zone routines, no-go zones, and customization are robust. Voice-assistant integration and detailed controls improve hands-off ownership, though some wish for more granular dock behavior options.

One review reports occasional debris spitting when transitioning between surfaces, suggesting blowback can happen in edge-case scenarios.

It detects rugs, boosts suction, and typically manages transitions well, with several reviewers noting rugs look cleaner after runs.

Area rugs are handled well thanks to carpet detection and automatic power adjustments, and the mop-lift helps avoid wetting rugs in mixed runs. Some advise refining carpet boundaries in-app for best results.

Setup is generally straightforward with quick mapping, but a few reviewers note the instructions and onboarding could be clearer.

Setup is widely described as quick and straightforward, often guided smoothly by the app. Dock assembly is simple (screws/driver included) and initial mapping tends to be fast.

Consumable tracking is inconsistent across reviews: some report missing or unclear bag-full prompts, while others say the robot explicitly alerts when the dust bag needs changing.

Battery life is generally strong for the class, with long runs possible in quieter/low modes and smart recharge-and-resume behavior when needed. High-power modes shorten runtime, but coverage remains competitive.

The bin/bag system is a convenience win: the dock bag can last around seven weeks to up to roughly two months in lighter use. A few point out the onboard dustbin is relatively small, but that’s typical for a self-emptying model.

Build is consistently described as solid and premium, though that sturdiness comes with extra weight.

Build quality is frequently praised, with tight fit/finish and a sturdy overall feel. Testers describe materials and assembly as top-notch for the category.

High-pile carpet performance is the weakest area in comparative testing, where deep pickup can fall well behind the best-in-class models.

High-pile carpet performance is serviceable but can require extra passes and still leave some debris in deeper fibers. Owners with lots of plush carpet may want a more carpet-specialized robot or supplement with a full-size vacuum.

Low-pile carpet results are generally good for everyday debris, though some tests still show small leftovers like scattered grains.

Low-pile carpet pickup is strong for maintenance, with good surface cleaning and hair removal. Deep extraction is less emphasized than pathing and consistency.

On carpets, it tends to do well with surface debris and hair, yet deep-cleaning embedded grit can be below average compared with the best competitors.

Medium-pile carpet results are generally good for surface cleaning, though at least one test notes deeper debris can remain and multiple passes may be needed. It’s strong for maintenance, less so for restorative carpet cleaning.

Child-lock controls are present and highlighted as useful for preventing accidental starts or setting changes.

Child lock support is viewed as a thoughtful, effective safety feature that prevents accidental button presses. Families and pet owners mention it as a practical safeguard.

Reviewers frequently note it handles big crumbs without clogging, and the roller/mop system stays surprisingly clear during normal use.

Dual rubber rollers earn praise for reducing hair tangles and clogs versus bristle rollers. Hair can still collect on the roller ends, but maintenance is usually easy.

Versus other flagships, it stands out for water recycling and strong hard-floor cleaning, but it can lag on carpet deep-clean tests and has mixed object-avoidance scores depending on the review.

Compared to prior generations and several competitors, reviewers often call the S8+ a meaningful step up in everyday vacuuming and navigation. Some still rate certain older flagships or specific rivals higher in edge cases like obstacle differentiation or deep carpet extraction.

The app is widely considered capable with maps, zones, schedules, and even remote viewing, but opinions split on polish: some call it smooth and user-friendly while others report clunkiness or missing advanced controls.

Some reviews highlight built-in cable management guidance and generally smooth navigation around furniture, but real-world cord avoidance still depends on the obstacle system, which is inconsistent.

Corner results are mixed: some reviewers see improvement, while others note the side brush and geometry do not always reach tight corners as well as the best robots.

Corner performance is above average for a round robot thanks to effective edge behavior, but it still can’t fully reach tight 90-degree corners. Side-brush behavior can leave small leftovers at the very edge in some cases.

At least one lab-style review rates groove and crevice pickup below average versus competitors, suggesting it may miss debris in deeper floor cracks.

Crevice and groove pickup is adequate but not class-leading in a controlled gap test, where the robot struggled to pull debris from deeper/narrower channels. For everyday seams, performance is still solid.

Green-light style illumination and dirt-detection features are repeatedly mentioned as helpful for seeing and targeting fine debris.

Docking and station automation is usually reliable for charging, washing, drying, and emptying, but a few reviewers cite slower drying, louder operation, or occasional quirks that still require check-ins.

Docking and auto-empty reliability is mostly good, with strong performance on typical dust, sand, and hair. A more rigorous test indicates the dock can struggle with some larger mixed debris loads, making it best for routine maintenance rather than big chunky spills.

Dock noise varies by mode: auto-emptying and the water system can be loud for some users, while others still describe the overall system as quieter than expected.

Dock emptying is consistently described as loud, even when the robot itself is relatively quiet. Owners often schedule emptying when they’re out or accept the brief noise as the tradeoff for convenience.

Roller-mop scrubbing is strong on sauces and everyday grime, but very dried stains, grout lines, and textured tile can still need extra passes or manual spot cleaning.

Most reviewers describe a set-and-forget experience once configured, with routines that reduce hands-on cleaning, tempered mainly by the physical size and weight of the base.

Everyday usability is excellent: setup is easy, controls are intuitive, and app workflows make it simple to run whole-home, room, or zone cleans. Most users describe a low-friction, set-and-forget routine once maps are built.

Edge and baseboard cleaning is a standout strength in multiple reviews, with notably better pickup along walls than many competitors. A mopping-focused test still observes a typical unclean band near baseboards during wet cleaning.

Edge cleaning benefits from the extending roller mop, but accurate edge-following depends on navigation precision, which some tests say is not always perfect.

Auto-emptying usually keeps mess contained, but experiences vary on how completely it clears the onboard bin and whether the system clearly tracks consumables like bags and solution.

Auto-emptying significantly reduces mess and day-to-day bin handling. Some owners prefer triggering emptying manually to avoid noise or frequency, and performance can vary with certain larger debris mixes.

Water capture and distillation can significantly increase energy use versus typical mop docks, with one comparison measuring markedly higher kWh for a full mop-and-dry cycle.

Filtration is presented as HEPA-class and effective for normal dust control, with the app providing some consumable tracking, though not all reviewers saw clear replacement prompts.

Filtration and dust containment are viewed positively, with HEPA-style filtering and effective containment during auto-emptying. Washable filters and lifespan counters are appreciated, though consumables still need periodic replacement.

Hair pickup on carpets is generally strong, especially for pet hair, though overall carpet cleaning depth still varies by floor type.

Carpet hair pickup is strong for many users, with some reviewers calling it among the best they’ve tested for surface hair. A stricter lab test still finds room for improvement in deep carpet fibers.

Hard-floor hair pickup is consistently praised, especially paired with the dual-roller design that avoids spreading clumps. Pet and human hair are typically collected cleanly into the bin.

Anti-tangle performance is often praised and can be near-perfect for typical pet hair, but long human hair can still wrap in some tests and auto-detangling is not always foolproof.

Tangle resistance is a major highlight: the rubber dual rollers greatly reduce wrap and jamming. Hair may collect at roller ends, but removal is quick and doesn’t usually interrupt cleaning.

Hard-floor fine dust performance is consistently rated high, with tests showing strong pickup in fewer passes than many rivals.

Hard-floor fine dust pickup is very strong, with tests showing high efficiency on smooth surfaces. Minor residual dust can remain near edges or in the middle of a test lane depending on pass patterns.

Large debris pickup on hard floors is a standout, with multiple reviews describing it as crumb-devouring and resistant to clogs.

Large debris intake on hard floors is usually excellent for typical crumbs and tracked-in grit. One dock-focused test found the system can be less consistent when dealing with certain bulky mixed debris during auto-empty.

WaterRecycle is the clear innovation: capturing humidity and distilling dirty water removes a major pain point of mop docks and is repeatedly cited as the reason to buy this model.

Clearance requirements are relatively high due to the top sensor bump, so it is not the best option for very low furniture.

The low-profile form factor helps under-furniture access, and reviewers note fewer worries about the top module catching. It won’t fit everywhere, but clearance is competitive.

Day-to-day upkeep is low thanks to the dock, but owners should expect periodic cleaning of filters and trays plus regular consumable replacements for bags, solution, and wear parts.

Routine maintenance is manageable: rollers and filters are easy to clean, and consumable tracking helps. Mop pads and filters still require regular attention, especially with frequent mopping.

Mapping is a consistent strength with fast, accurate room maps and efficient routes; a few tests note slightly imprecise edge positioning during mopping.

LiDAR-based mapping is consistently praised for accuracy, speed, and room/zone control. Most reviewers highlight strong pathing efficiency, editable maps, and useful visualization (2D/3D).

Mop lifting on carpets and rugs is generally effective and helps prevent wetting, with most reviewers reporting reliable transitions.

Mop lifting works well for mixed hard-floor and rug homes, reducing accidental wetting. The lift height isn’t the largest in the category, so very thick carpets may still benefit from avoidance settings.

Mopping is a core strength: the roller mop applies pressure, cleans itself continuously, and performs very well on everyday messes, though it can be slower and less ideal on grout or rough surfaces.

Mopping is better than many drag-pad hybrids thanks to sonic/vibration scrubbing, and it can handle light stains and surface grime. The common limitation is sticky/set-in messes and zone/edge precision, sometimes requiring multiple runs or a manual follow-up.

The robot itself is often described as quiet, but the dock can be noticeably louder during auto-emptying and when the water-capture/distillation system is running.

Most reviewers find the robot itself fairly quiet in normal operation, with louder sound mainly tied to higher suction modes. Several call it quieter than some premium peers, but volume rises noticeably when you push max power.

Obstacle avoidance is the most polarized attribute: some reviews call it excellent with cords and clutter, while at least one comparison shows serious failures with pet waste and certain cables.

Obstacle avoidance is generally strong for common items like shoes and cords, with reliable navigation even in low light. A tough-case test shows occasional misses (including a pet mess scenario on a first pass), so basic floor tidying still helps.

Odor experiences vary: some notice a smell from the cleaning solution or station during cycles, while others report neutral results aided by deodorizing modules.

Ongoing costs are a notable consideration: bags, brushes, filters, and mop pads add recurring spend. Owners generally accept the costs as the price of convenience, but it should be budgeted.

Overall sentiment is strongly positive, driven by hands-free mopping and hard-floor pickup, with recurring caveats about carpet deep cleaning, base size/noise, power draw, and obstacle avoidance variability.

Overall sentiment is strongly positive for vacuum-first performance, mapping, and convenience. Common reservations center on mopping limitations, price, and the loud dock emptying cycle.

Packaging is often described as oversized and heavy but protective, reflecting the large dock and accessories.

Pet owners generally like the hair pickup and hands-free routines, but pet-mess avoidance is inconsistent and at least one comparison test showed it can run over rubber dog poop.

It is priced like a flagship; many reviewers say the value hinges on how much you care about the WaterRecycle convenience, and it looks most compelling when discounted.

Value is strong if you prioritize automation and vacuum performance, but many flag the price as premium for a dock that only self-empties (not full wash/refill). Sales pricing helps the proposition; budget buyers may find it overkill.

Camera-based remote viewing is available but usually requires an intentional setup step, and reviewers note there is no true offline mode, so privacy-minded users may want to disable camera features.

Privacy opinions are helped by the lack of a live-view surveillance camera feature. Some see that as a downside for remote viewing, while others prefer it for privacy.

Several reviews repeat sanitizing or sterilization claims tied to distilled water and the dock process; real-world feedback is generally positive but not deeply validated with measurement.

Scratch resistance is mixed: some users see cosmetic scuffs on glossy areas after months of use. Functionality is unaffected, but appearance-focused buyers may notice wear.

The dock delivers a largely automated wash, squeegee, and dry routine for the roller mop, but it still benefits from occasional manual cleaning of filters, trays, and catch points.

Feature longevity is a question mark in a few reviews, with specific concern raised about ongoing software support if the model is discontinued or replaced.

Automatic solution dosing is convenient, but it relies on proprietary cleaner, and some reviewers dislike the ongoing cost or lack of flexible water-only options.

Multiple reviewers call the all-in-one base large and space-hungry, so it needs a dedicated spot and is less friendly for tight homes.

Most users see clean, low-streak results, but thick or chunky spills can smear, and some reviewers notice streaking or residue on textured tile or during mop-lift transitions.

Most reviewers report it rarely gets stuck in typical rooms, but threshold climbing is limited and a failure case appears when it ingests soft rubber messes that can jam the brush.

The robot is rarely reported as getting stuck, and reviewers note solid threshold handling and sensible no-go/avoidance tools. Messy floors (wires, socks) can still trigger occasional issues.

Across reviews, suction feels strong for day-to-day pickup, especially on hard floors, but deep carpet extraction is more variable and can trail top flagships in lab-style tests.

Reviews consistently praise strong pickup and suction, especially for routine dust and pet hair. A lab-style test notes deep-in-fiber and tight crevice extraction can lag behind the very best, even if overall cleaning remains strong.

Several reviews call it overkill for apartments or very small homes because the base is large and the feature set is aimed at higher-end, hands-free upkeep.

Most reports suggest stable daily operation, but at least one review flags concerns about long-term support if the model is being phased out.

Reliability feedback is largely positive: good day-to-day consistency, solid docking behavior, and few reported operational issues. Long-term confidence is tempered by consumables, occasional large-debris dock struggles, and the usual robot-vac edge cases.

The headline feature is the self-refilling system that condenses humidity and distills dirty mop water so you may rarely add or dump water in humid homes; performance can drop in drier climates where water generation is slower.

The water tank approach works for routine wet cleaning, but several reviewers want an official cleaning-solution option and note tank capacity/cloth management can limit larger jobs. Users who pre-wet or refresh the pad mid-clean get better results.

Both the robot and especially the dock are heavy, making the system inconvenient to move between floors or relocate.