9 Best Robot Vacuums Under $400 (2026 Guide)

The Roborock Q7 M5+ isn’t just another robot vacuum—it’s a hands-free cleaning powerhouse engineered for pet owners and busy households. With a jaw-dropping 10000Pa HyperForce suction, it obliterates embedded pet hair from carpets and corners alike, while the Dual Anti-Tangle System ensures long-haired pets won’t bring your cleaning routine to a halt. Its PreciSense LiDAR navigation maps complex multi-room layouts with surgical precision, slashing cleaning time with smart, optimized paths—no more random bouncing or missed spots.

In real-world testing, the Q7 M5+ shines in homes up to 2,500 sq. ft., handling transitions between hardwood, tile, and thick rugs without hesitation. The 2.7L RockDock Plus self-empty station is a game-changer—emptying debris into a sealed bag that lasts up to 7–9 weeks, drastically cutting maintenance. While mopping performance is solid on light spills and daily dust, it struggles slightly with dried-on messes unless pre-treated. On thick carpets, the mop lifts slightly, but occasional streaking occurs if the water tank is set too high.

Compared to the iRobot Roomba 104 Combo, the Q7 M5+ delivers stronger suction and longer hands-free operation, though Roomba’s carpet-avoidance during mopping is more consistent. For users wanting maximum power, minimal upkeep, and advanced app control, this model is unmatched under $400. It outperforms mid-tier Roborocks like the Q7 L5 with superior suction and autonomy, making it the best overall robot vacuum in its class.

The ILIFE V2 is a no-frills workhorse built for those who want reliable, tangle-free cleaning without the smart tech clutter. Its standout feature is the tangle-free suction port, which effortlessly pulls in pet hair from hardwood and low-pile carpets—no daily brush cleaning required. At just 2.99 inches tall, it slips under furniture where most vacuums can’t reach, making it perfect for homes with under-bed clutter or low-clearance sofas. It’s the kind of robot that just works, especially for users overwhelmed by apps and complex setups.

Performance-wise, the V2 delivers a solid clean on hard floors with its 120-minute runtime, using a mix of auto, edge, and spot modes to cover most rooms in a single cycle. It navigates via basic infrared sensors, which means it bumps into furniture more than laser-guided models, but it reliably avoids stairs and tight drops. While it lacks mopping or app control, its simple remote and one-touch operation make it ideal for seniors or tech-averse users. It struggles on darker floors due to poor cliff detection contrast, and carpet cleaning is minimal—best for light debris.

Against the eufy 11S MAX, the V2 offers similar simplicity but with better edge cleaning and longer runtime. It doesn’t match the power or intelligence of higher-end models, but for those seeking a basic, affordable, and low-maintenance robot, it’s a smart entry point. It’s less advanced than the Lefant M210 Pro but more consistent in coverage, making it the best basic model for straightforward cleaning needs.

The Roborock Q7 L5 is a high-performance underdog that brings flagship-level features down to an astonishing $130. Don’t let the price fool you—its 8,000Pa HyperForce suction digs deep into carpets, lifting pet hair and fine dust with ease, while the Dual Anti-Tangle Brushes keep maintenance to a minimum. The Precision LiDAR navigation builds accurate home maps in minutes, enabling smart no-go zones and room-by-room cleaning—features typically reserved for premium models.

In real-world use, the Q7 L5 handles multi-surface homes up to 1,800 sq. ft. with confidence. The 270ml combo water tank and dustbin allow simultaneous vacuuming and mopping, though users must swap between modes manually. On hard floors, it removes footprints and light spills effectively, but the mop pad dries unevenly over long sessions. It climbs thresholds smoothly and adjusts suction on carpets, though it lacks the raw power of the Q7 M5+. Battery life (90 mins) is average, but it reliably self-recharges without issue.

When stacked against the betboyles V75S, the Q7 L5 offers superior navigation, stronger suction, and better app integration. It’s not as quiet as the Kilgone or as budget-friendly as the Lefant M210 Pro, but for performance-per-dollar, it’s unmatched. It’s the best value high-performance robot vacuum under $400, delivering 90% of the Q7 M5+ experience at half the price.

The eufy 11S MAX is a breath of fresh air for those who hate smart clutter but love quiet, powerful cleaning. At just 2.85 inches tall, it’s one of the slimmest robot vacuums available, gliding effortlessly under sofas and beds where dust bunnies hide. Its BoostIQ technology ramps up suction in 1.5 seconds when transitioning from hardwood to carpet, delivering a consistent clean without noise spikes—operating at just 65dB, quieter than most microwaves.

In testing, the 11S MAX excelled on hard floors and medium-pile rugs, running up to 100 minutes on a single charge. It uses a basic infrared navigation system, meaning it cleans in a somewhat random pattern—effective but inefficient in large or cluttered spaces. It reliably avoids falls and collisions, thanks to drop-sensing tech and a durable tempered glass top. However, without app control or scheduling, you’re limited to remote or manual starts, which feels outdated in 2025.

Compared to the ILIFE V2, it offers similar simplicity but better suction and lower profile. Against Wi-Fi-enabled models like the Lefant M210 Pro, it loses on smart features but wins on build quality and quietness. For users who want a set-it-and-forget-it robot without subscriptions or apps, it’s the best non-smart option under $400. It delivers premium quiet operation and solid cleaning where other budget bots cut corners.

The Lefant M210 Pro punches way above its sub-$100 price tag, offering full app connectivity and 200-minute runtime—a rare combo at this budget. Its zig-zag smart navigation is a standout, replacing the chaotic bounce of cheaper bots with logical, grid-like cleaning that ensures full coverage. With 13 pairs of infrared sensors, it dodges obstacles and stairs with impressive accuracy, making it one of the most reliable low-cost robots for cluttered homes.

Real-world testing shows it handles pet hair and debris on hardwood and low-pile carpets effectively, though its 4000Pa suction is modest—fine for daily upkeep but not deep cleans. The 200-minute runtime in quiet mode allows it to clean up to 1,800 sq. ft., perfect for apartments or multi-room condos. App control is smooth, with scheduling, zone selection, and voice commands via Alexa. However, the plastic build feels lightweight, and the mop function is rudimentary—best for light dust, not spills.

Versus the Kilgone or Tikom G8000 Max, the Lefant offers longer battery life and smarter navigation at a lower price. It lacks mopping power and raw suction but delivers exceptional value for tech-savvy buyers on a tight budget. For those who want app control without breaking the bank, it’s the best budget model with smart features under $400.

The Tikom G8000 Max is a suction standout in the sub-$120 category, packing 5000Pa of cleaning power—more than double many bots in its class. This lets it tackle pet hair, crumbs, and embedded dirt on hard floors and medium-pile carpets with surprising authority. Its 450ml dustbin and 300ml water tank combo supports true vacuum-and-mop simultaneity, cutting cleaning time in half. The ultra-slim 2.99-inch body slips under furniture, while large wheels conquer thresholds up to 0.8 inches.

In practice, the G8000 Max covers up to 1,300 sq. ft. on a 150-minute runtime, using zig-zag mode for maximum coverage. App control is responsive, with scheduling, voice commands, and four cleaning modes. Mopping is adequate for daily maintenance but leaves streaks if over-saturated. Navigation is competent but not LiDAR-grade—occasional missed spots in complex layouts. On dark floors, cliff sensors sometimes misjudge edges, causing premature turns.

Compared to the betboyles V75S, the Tikom offers stronger suction and better mopping efficiency. It doesn’t match Roborock’s intelligence but delivers top-tier suction for under $120. For pet owners needing powerful cleaning without premium pricing, it’s the best suction model under $120. It outperforms similarly priced bots with a balanced mix of power, battery, and smart features.

The Kilgone robot vacuum earns its title as the quietest performer under $400, operating at just 65dB—a whisper compared to most bots that sound like mini vacuums. This makes it perfect for daytime cleaning around napping kids or sensitive pets, especially in long-haired households where noise can trigger anxiety. Its 2300Pa suction is modest but sufficient for daily debris, and the 230ml smart mopping system delivers consistent moisture for streak-free finishes on light messes.

In real use, the Kilgone covers up to 1,290 sq. ft. on a 2-hour runtime, using zig-zag navigation to reduce missed spots by 30% versus random patterns. It reliably avoids furniture and stairs with dual sensors, though tight corners can confuse its pathing. App control is straightforward, with four cleaning modes and Alexa compatibility. However, suction power is underwhelming on thick carpets, and the HEPA filter can’t be washed, requiring replacements.

Against the Lefant M210 Pro, it trades battery life for quieter operation and better mopping control. It lacks the power of the Tikom or Roborock but excels where others fail: stealthy, non-disruptive cleaning. For homes with cats, dogs, or noise-sensitive environments, it’s the best quiet robot vacuum under $400. It’s not the strongest, but it’s the most peaceful cleaning companion in its class.

The iRobot Roomba 104 Combo is the king of hands-free convenience, offering 75 days of self-emptying—the longest in its price range. Powered by 70X more lifting suction than older Roombas, it pulls deep-seated dirt from carpets and corners, while the ClearView LiDAR navigation maps homes with impressive accuracy. Its biggest innovation? Automatic carpet avoidance during mopping, ensuring rugs stay dry without manual zone setup—a feature even premium competitors struggle with.

In testing, the Roomba 104 excels in homes with mixed flooring, switching seamlessly between vacuuming and mopping. The micro-pump mopping system delivers 2x deeper scrubbing, making it ideal for kitchens and entryways. It schedules cleans, tracks filter life, and creates no-go zones via the intuitive app. However, its suction (approx. 4000Pa) isn’t as strong as the Roborock Q7 M5+, and the bin capacity is smaller, requiring more frequent dock returns.

Compared to the Roborock Q7 M5+, it offers better carpet protection during mopping and smoother app experience, but less suction and shorter self-emptying duration. For users who prioritize automation and hassle-free maintenance, it’s the best self-emptying robot under $400. It’s pricier than others but justifies it with iRobot’s reliability and smart mopping intelligence.

The betboyles V75S is built for large homes up to 1,600 sq. ft., boasting a 4400mAh battery that delivers 120+ minutes of continuous cleaning—enough to cover multiple rooms without recharging. Its 2200Pa suction is adequate for daily messes, and the 400ml dustbin is one of the largest in its class, reducing emptying frequency. The 6 cleaning modes, including Smart and Manual, offer flexibility for targeted cleaning, especially in pet-heavy zones.

In real-world use, the V75S handles transitions between floor types smoothly, thanks to large wheels and 3D obstacle detection. The 250ml water tank provides even mopping on hardwood and tile, though it’s not ideal for heavy spills. App control works well, with Alexa and Google Assistant support, but the interface feels dated. Navigation is zig-zag based—better than random but not LiDAR-precise—leading to occasional overlaps.

Versus the Lefant M210 Pro, it offers larger capacity and better mopping, but shorter runtime. It doesn’t match the Tikom in suction or the Roborock in intelligence, but for spacious homes needing long runtime and big bin size, it’s a strong pick. It’s the best robot vacuum for large homes under $400, prioritizing endurance and coverage over raw power.