8 Best Robot Vacuums Under 400 of 2026

The Lefant M210 Pro punches far above its weight with a rare blend of 200-minute runtime and 4000Pa suction, making it a standout for users who hate frequent recharges. Its ultra-slim 2.99-inch profile slips effortlessly under low-clearance furniture, while the dual edge-sweeping brushes ensure corners aren’t ignored—a common weak spot in budget bots. With smart zig-zag navigation, it avoids the chaotic randomness of older models, delivering systematic coverage that actually feels intentional. If you’re tired of vacuums that miss half your floor, this one solves that with quiet confidence.

In real-world testing, the M210 Pro excels on hard floors and low-pile carpets, where its suction and brush design work in harmony to lift pet hair and fine dust. The 13 pairs of infrared sensors do a solid job avoiding collisions and stair drops, though it occasionally nudges furniture on tight turns. Battery life is its crown jewel—200 minutes in quiet mode means it can tackle large apartments in one go, a rarity under $150. However, it struggles slightly on thick rugs, and the Wi-Fi setup can be finicky, especially on congested networks. Still, for daily maintenance cleaning, it’s impressively autonomous.

Compared to the Tikom G8000 Max, the Lefant trades mopping and slightly higher suction for exceptional battery life and quieter operation. It’s the better choice for those prioritizing coverage over wet cleaning, especially in homes with pets and sprawling layouts. While it lacks advanced mapping, its logical cleaning path keeps it competitive. For the price, it delivers unmatched endurance and reliability, making it a smarter long-term pick than flashier but shorter-lived rivals.

The Tikom G8000 Max is a budget powerhouse, delivering 5000Pa suction and vacuum-mop combo functionality at a price that feels almost too good to be true. Its 300ml water tank and 450ml dustbin allow for dual cleaning in one pass, cutting cleaning time in half—a game-changer for busy households. The ultra-slim 2.99-inch body glides under furniture with ease, and the large wheels handle transitions between hard floors and medium-pile carpets without hesitation. If you want maximum floor versatility without maxing out your wallet, this robot is engineered to impress.

During testing, the G8000 Max proved its mettle on tile, hardwood, and low-to-medium carpets, lifting pet hair and crumbs with authority. The zig-zag cleaning mode ensures thorough coverage, while anti-collision and anti-fall sensors keep it from damaging walls or tumbling down stairs. Battery life hits 150 minutes in quiet mode, enough for most average-sized homes, though larger spaces may require a recharge mid-clean. It does struggle with very wet mopping, as the water flow isn’t precisely regulated, leaving streaks on hardwood. Still, for dry debris and light mopping, it’s remarkably effective.

When stacked against the Lefant M210 Pro, the Tikom wins on suction power and mopping capability, but loses on runtime and noise control. It’s the ideal pick for those who value cleaning intensity over silence and endurance. Compared to pricier models like the Roborock Q7 series, it lacks LiDAR and self-emptying, but delivers 90% of the core functionality at half the cost. For pet owners needing a no-fuss, dual-action cleaner, this is the smartest bang-for-buck play under $120.

The roborock Q7 M5+ redefines what a sub-$250 robot vacuum can do, combining 10000Pa suction, PreciSense LiDAR navigation, and a 7-week self-emptying dock into one seamless package. This isn’t just a cleaner—it’s a hands-free cleaning revolution. The dual anti-tangle system with JawScrapers brush and 0% hair-tangling side brush makes it a pet hair annihilator, while the sealed 2.7L dust bag means you can forget about emptying for months. If you’ve ever dreaded touching a dirty dustbin, this robot is your liberation.

In real-world use, the Q7 M5+ navigates complex, multi-room layouts with military precision, thanks to its 360° LiDAR mapping. It creates accurate floor plans, allows custom no-go zones, and resumes cleaning after recharging—no lost coverage. On carpets, the hyperforce suction pulls up embedded pet hair and fine dust, while the three water flow settings let you fine-tune mopping from light dampening to deep scrubbing. The only hiccup? The mop tangles slightly on long rugs, and the app only supports 2.4GHz Wi-Fi, which can frustrate users with dual-band routers.

Against the iRobot Roomba 104 Combo, the Q7 M5+ matches its self-emptying capability but surpasses it in suction and app customization. Compared to the Q7 L5, it adds the self-empty dock, justifying the price bump. It’s the best overall package for those who want minimal maintenance, maximum power, and smart home integration. For the investment, it delivers near-premium performance with mid-tier pricing, making it the most balanced robot vacuum under $400.

The iRobot Roomba 104 Vac brings 70X more power-lifting suction than older Roomba models, making it a pet hair obliterator on hard floors and carpets alike. Its ClearView LiDAR navigation maps homes quickly and cleans in neat, methodical rows—a satisfying contrast to the chaotic swirls of cheaper bots. The 3-stage cleaning system combines intense suction, a multi-surface brush, and an edge-sweeping brush to leave floors barefoot-ready, while the recharge-and-resume feature ensures no spot is missed. If you want a robot that cleans like it means business, this one does.

In practice, the Roomba 104 excels at edge cleaning and obstacle avoidance, smoothly navigating around chair legs and under tables. It handles transitions between floor types with ease and climbs thresholds better than many competitors. The app integration is smooth, allowing custom schedules, filter life checks, and keep-out zones. However, it only vacuums—no mopping, which limits its versatility. And while the suction is powerful, it’s slightly louder than rivals, making quiet-time cleaning less ideal. Still, for deep, reliable dry cleaning, it’s exceptionally consistent.

Compared to the Lefant M210 Pro, the Roomba 104 offers superior navigation and suction but at nearly double the price and without mopping. Against the Roborock Q7 L5, it lacks LiDAR-level precision but compensates with iRobot’s trusted reliability and edge-cleaning prowess. It’s the best choice for pet owners who prioritize hair pickup and floor coverage over smart features or wet cleaning. For pure vacuum performance, it outclasses most in its range, offering premium cleaning logic without the premium extras.

The roborock Q7 L5 is the sweet spot of value and intelligence, packing 8,000Pa suction, Precision LiDAR navigation, and vacuum-mop combo functionality into a sub-$130 package. Its 360° laser mapping builds accurate floor plans, enabling efficient, grid-style cleaning that leaves no corner untouched. The dual anti-tangle brushes handle pet hair like a pro, minimizing maintenance—a huge win for long-haired pet owners. If you want smart navigation without the smart price tag, this robot is a revelation.

In real-world use, the Q7 L5 navigates complex layouts with confidence, remembers multiple floor maps, and lets you set custom cleaning zones and schedules via the app. The 270ml water tank delivers consistent mopping across hard floors, though it’s best for light to medium spills, not deep stains. On carpets, the 8,000Pa suction digs deep, outperforming most bots in its class. The only letdown? The integrated dustbin and water tank make emptying and refilling slightly awkward, and the 2.4GHz Wi-Fi requirement can trip up some users during setup.

When compared to the Tikom G8000 Max, the Q7 L5 offers far superior navigation, better suction, and smarter app control, making it worth the extra $20. Against the Roomba 104 Vac, it adds mopping and better mapping at a lower price. It’s the best value pick with LiDAR, delivering high-end features without the high-end cost. For tech-savvy users who want smart, efficient cleaning on a budget, it’s hard to beat.

The Kilgone Robot Vacuum and Mop Combo is a silent achiever, combining 2300Pa suction, 2-hour runtime, and ultra-quiet 65dB operation into a package that’s perfect for pet-heavy homes. Its 2600mAh battery covers up to 1290 sq ft, making it ideal for studios and small apartments, and the self-recharge feature ensures it’s always ready. The zig-zag navigation is a major upgrade over random-path models, delivering 30% better coverage and fewer missed spots. If you want a quiet, app-controlled bot under $110, this one delivers.

In testing, the Kilgone handled hard floors and low-pile carpets well, lifting pet hair and dust with its tangle-free suction and HEPA filter. The 230ml smart mopping system works for light spills but isn’t strong enough for sticky messes. Voice and app control are responsive, though the 2.4GHz Wi-Fi requirement can be a hurdle. It’s not recommended for dark floors, as the sensors struggle with contrast, occasionally getting confused. Still, for night cleaning or homes with cats and dogs, its whisper-quiet operation is a major win.

Against the Lefant M210 Pro, the Kilgone trades some suction and runtime for quieter operation and better app integration. Compared to the Tikom G8000 Max, it’s less powerful but more focused on stealth and ease of use. It’s the best app-controlled option under $110, especially for urban dwellers and pet owners who value unobtrusive, automated cleaning. While not the strongest performer, it nails the essentials with finesse.

The iRobot Roomba 104 Combo is the pinnacle of hands-free cleaning, offering 75 days of self-emptying via its AutoEmpty dock—a luxury few under-$400 bots provide. With 70X more power-lifting suction and a microfiber mop pad with SmartScrub, it vacuums and mops in one go, automatically avoiding carpets when mopping—a feature that sets it apart from most competitors. The ClearView LiDAR navigation ensures precise, room-by-room cleaning, while the 2x deeper scrubbing leaves hard floors genuinely shiny. If you want set-it-and-forget-it cleaning with zero carpet mishaps, this robot is unmatched.

In real-world use, the Roomba 104 Combo delivers hospital-grade cleanliness, especially on hardwood and tile. The mop automatically lifts on rugs, eliminating the guesswork of manual mode switching. The app allows full customization, from suction levels to cleaning schedules, and the filter life tracker helps with maintenance. However, the AutoEmpty dock is bulky, and the 339 price tag is steep compared to others in this list. It also can’t map multiple floors, limiting its use in larger homes. Still, for low-maintenance, high-reliability cleaning, it’s a top-tier performer.

Versus the roborock Q7 M5+, it matches the self-emptying but lacks the same suction power and app flexibility. Compared to the Roomba 104 Vac, it adds mopping and the dock but at a steep premium. It’s the best self-emptying robot here, ideal for busy professionals and pet owners who hate touching dirt. While expensive, it justifies the cost with true autonomy and intelligent floor detection, making it the ultimate low-effort cleaner under $400.

The eufy Robot Vacuum 11S MAX is a stealthy minimalist, built for those who value ultra-quiet operation and slim design over smart features. At just 2.85 inches tall, it’s one of the slimmest robots available, slipping under sofas and beds with ease. Its BoostIQ technology automatically ramps up suction on carpets, delivering consistent cleaning from hardwood to medium-pile rugs. And at 65dB, it’s quieter than a microwave—perfect for cleaning while you work or sleep. If you want a no-frills, reliable cleaner that stays out of the way, this one excels.

In testing, the 11S MAX handled daily dust and pet hair effectively, thanks to its single-side brush that prevents debris scattering. The 100-minute runtime is solid for small to medium homes, and the drop-sensing tech kept it safe on stairs. But the lack of Wi-Fi and app control is a major limitation—it’s fully manual via remote or buttons. That means no scheduling, no mapping, no voice commands. It’s great for simplicity, but not for smart homes. Still, for apartments and quiet households, its low profile and silent run are unbeatable.

Compared to the Kilgone, it trades app control for better build and quieter operation. Against the Lefant M210 Pro, it loses smart features but wins on slimness and noise. It’s the quietest and thinnest option here, ideal for renters and minimalists who want basic cleaning without tech clutter. While outdated in connectivity, it nails the fundamentals with elegance, offering reliability over flash.