Overview

The Eureka ReactiSense 440 makes a compelling case that you don't need to spend $500+ to get a genuinely smart cordless vacuum. Its ReactiSense technology — which auto-adjusts suction and brush speed based on real-time dust detection — is the kind of feature typically reserved for vacuums costing two or three times as much. At $180, it delivers 350W of cleaning power and a 60-minute runtime that comfortably covers most homes on a single charge.

What makes the ReactiSense 440 more than just a budget pick is the attention to detail: LED-lit brush head for spotting dust under furniture, a 110-degree swiveling head that navigates tight spaces, and an anti-tangle brush roll designed specifically for pet hair. It's not flawless — there's no auto-empty dock and the 0.5L dustbin demands regular attention — but for the money, it punches well above its weight class.

Features Deep-Dive

ReactiSense Smart Suction

The standout feature is Eureka's Smart Sense+React technology, which monitors dust concentration in real time and automatically adjusts both suction power and brush roll speed. On hardwood floors with light dust, the motor stays quiet and conserves battery. Move to a high-traffic carpet area and the vacuum ramps up without you touching a button. This isn't just a marketing gimmick — it meaningfully extends battery life by using full power only when needed, and it's remarkably rare at this price point.

Anti-Tangle Brush Roll

Pet owners will appreciate the anti-tangle brush roll design, which uses specialized fins and dense comb strips to prevent hair from wrapping around the roller. The brush is also fully removable: unlock it, slide it out, clear any stubborn debris, and snap it back in. In a category where hair tangles are the number-one complaint, Eureka's engineering here is thoughtful and practical.

LED-Lit Floor Head with 110° Swivel

The motorized floor head features bright LED lights that illuminate dust and debris hiding under furniture and in dark corners. Combined with a 110-degree swivel range, it's genuinely easy to maneuver around table legs and into tight spaces. The low-profile design slides under most furniture without needing to crouch.

Pricing Analysis

At $179.99, the ReactiSense 440 is the most affordable vacuum in our roundup, and it's not close. Yet it offers features — auto-adjusting suction, LED-lit brush head, anti-tangle design — that you won't find on many vacuums under $350. The main trade-off is convenience: no auto-empty dock means manual dustbin emptying, and charging takes 4-6 hours. But if you're willing to empty a dustbin and plan your charging, the ReactiSense 440 delivers roughly 80% of the experience at 30% of the price of mid-range options.

Who Is This For?

• Budget-conscious homeowners who refuse to compromise on suction power and want smart features without the premium markup
• Pet owners on a budget looking for effective hair pickup with the anti-tangle brush system and easy roller maintenance
• Large-home cleaners who need the full 60-minute runtime to cover 1,600+ square feet on a single charge
• First-time cordless buyers stepping up from a traditional plug-in vacuum who want a capable entry point without overspending

Who Should NOT Use This

• Convenience seekers who want hands-free maintenance — without an auto-empty dock, you're emptying the 0.5L dustbin every session or two
• Anyone who prioritizes lightweight design — at 6.4 lbs (3.75 lbs in handheld mode), it's noticeably heavier than ultralight competitors like the Dreame Z30 or Dyson PencilVac

Bottom Line

The Eureka ReactiSense 440 is the rare budget vacuum that doesn't feel like a compromise. Smart suction adjustment, solid 60-minute runtime, and thoughtful pet-focused design make it the best value in our roundup by a wide margin.

FAQ

How does the ReactiSense auto-suction compare to more expensive vacuums?

It works on the same principle — real-time dust sensing that adjusts power — but the implementation is simpler. Premium vacuums like the Dreame Z30 offer more granular particle detection and LCD readouts. The ReactiSense gets you 80% of the intelligence at a fraction of the cost.

Is the 60-minute runtime realistic?

That's the maximum on the lowest power setting using the crevice tool. Expect 30-40 minutes with the motorized floor head in auto mode for typical cleaning. Still excellent for the price, but plan accordingly for very large homes.

Can I buy an extra battery for longer cleaning sessions?

Yes, Eureka sells a separate detachable battery pack. Swapping batteries effectively gives you unlimited runtime if you keep one charged.

How loud is it?

Eureka doesn't publish decibel ratings, but user reviews consistently describe it as comparable to mid-range cordless vacuums — noticeable but not disruptive in normal use.