Em925A5A Bs vs Roomba 960: Which Should You Buy?

Introduction

I've been living with two robot vacuums for the past several months: an Em925A5A Bs (a budget-minded model I picked up to see how far inexpensive robots have come) and an iRobot Roomba 960, which I had heard good things about and decided to compare head-to-head. In my experience, both machines have strengths and trade-offs depending on what you care about—navigation, suction, app polish, maintenance, or overall reliability.

In this article I’ll walk through how I tested each machine, what surprised me, what bothered me, and the specific scenarios where I think one is clearly a better choice than the other. I’m writing from hands-on time: multiple full-house clean cycles, different floor types (hardwood, tile, low-pile carpet, a couple of deep rugs), hair and pet-dander tests, and day-to-day scheduling and upkeep. If you’re deciding which to buy, this is the practical, lived-in comparison I wish I’d had before choosing.

How I Tested

My testing was simple but consistent. I set both units to clean the same 900 sq ft area with the same furniture layout, ran mixed surface jobs (hard floors + rugs), and evaluated the following:

• Cleaning performance on crumbs, pet hair, and fine dust
• Navigation reliability and edge/ corner cleaning
• Battery runtime and whether the robot returns to charge and resumes
• App and connectivity experience (scheduling, maps, and notifications)
• Maintenance frequency — brush cleaning, filter replacement, and dustbin emptying
• Noise level during operation (practical, subjective measure)

Below I describe what I found after using each robot for weeks and cycling them through repeated cleanings.

Roomba 960 — My Detailed Review

When I got the Roomba 960, what struck me right away was the packaging and setup: the Roomba app walked me through Wi‑Fi setup, and within a few cycles it had produced a usable map of the main floor. In my experience, the Roomba 960 felt like the more mature product in terms of navigation and overall polish.

Cleaning Performance

In my home, the 960 handled everyday debris very well. It has a brush-roll design and a two-stage cleaning system that picked up cereal crumbs and a surprising amount of embedded pet hair from low-pile carpets. I noticed it did better than the Em925A5A Bs on carpet transitions and on pieces of debris trapped near baseboards.

That said, the Roomba 960 wasn't perfect on deep-pile rugs. I had to run a couple of targeted runs at higher suction to really wrestle hair out of a shaggy throw rug; otherwise it skimmed the top. For fine dust on hardwood, it did a good job—after a normal cleaning the dust bin still contained visible fine particles, which made me feel confident it was removing allergens rather than just rearranging them.

Navigation and Mapping

The Roomba 960’s mapping was the feature I appreciated most. The map the app showed matched my room layout closely, and the robot reliably avoided getting stuck under chairs. When it bumped into obstacles it would re-route in a sensible way. I liked being able to schedule room-specific cleanings from the map.

One caveat: mapping occasionally reset after a firmware update or a long power loss, which meant I had to re-run a couple of learning cycles. That was annoying but not a dealbreaker.

Battery and Runtime

In my testing the 960 averaged roughly 70–80 minutes of runtime on mixed surfaces before returning to the dock. When it couldn't finish the whole level it would return, recharge, and resume where it left off—this worked most of the time. I appreciated the automatic recharge-and-resume behavior; it made long jobs practical.

App and Smart Features

The Roomba app was polished. Scheduling is straightforward, and push notifications are clear. Voice assistant support (I used Alexa) worked reliably for start/stop commands. Where it fell short was a bit of occasional lag: remote start sometimes took an extra 10–20 seconds to take effect, and connection problems popped up a couple of times on my spotty Wi‑Fi.

Maintenance and Durability

I noticed the main brush required regular cleaning when there was a lot of pet hair in the house. The brush is easy to remove, but hair wraps inevitably. Filters needed cleaning and occasional replacement; the dustbin size is reasonable but I emptied it after every heavy-clean day. The Roomba felt solidly built and held up to weeks of daily jobs without developing new squeaks or plastic fatigue.

What I Liked

• Reliable mapping and sensible navigation
• Good everyday cleaning on mixed surfaces
• Polished app with scheduling and voice assistant support
• Return-to-dock and resume worked well

What Bothered Me

• Brushes tangle with long hair and need frequent attention
• Maps sometimes reset after updates or full power loss
• Not the quietest robot at higher suction levels

Em925A5A Bs — My Detailed Review

The Em925A5A Bs is the budget-oriented contender in my test. I wasn’t expecting the same level of polish as Roomba, but after several months I found it offered surprising value in some areas and clear compromises in others.

Cleaning Performance

I ran targeted hair-and-dust tests, and the Em model required additional runs and sometimes manual vacuuming afterward to match the result I got from the Roomba.

Navigation and Reliability

Navigation is where the Em925A5A Bs shows itself to be a budget design. It uses a more basic navigation approach (less advanced mapping and occasional randomized direction changes). In my apartment it sometimes got stuck in tighter areas—under a metal coffee table with narrow legs, for instance—and required manual intervention more often than the Roomba did.

That said, in open areas it covered floor space relatively efficiently and used bump-and-turn heuristics to reach missed spots. The unit learned some room boundaries after a few runs, but it didn't produce a long-lasting map I could interact with the way the Roomba did.

Battery and Runtime

The Em925A5A Bs surprised me with comparatively long run times on a single charge—often a bit longer than the 960 on similar jobs. In practice that meant fewer mid-job returns to the dock for my small-to-medium home. However, since it sometimes needed follow-up passes to match Roomba’s cleaning depth, that extra runtime didn't always translate to less overall work.

App and Controls

The companion app is functional but noticeably less refined. Scheduling worked, but I found the UI clunkier and the mapping absent or limited. Remote commands sometimes took longer to register. If you’re comfortable running set-it-and-forget-it jobs without fine control or room-specific scheduling, the Em’s app is adequate.

Maintenance and Durability

I noticed the Em925A5A Bs requires a bit more hands-on maintenance. Brushes accumulate hair more quickly and are slightly harder to clean because of the way the end caps and bearings are constructed. Filters need attention and the dustbin is a touch smaller compared to the Roomba, so I ended up emptying it more frequently during heavy tests.

What I Liked

• Great value for the money and longer apparent runtime
• Strong performance on hard floors and large debris
• Simple, straightforward scheduling for basic needs

What Bothered Me

• Less reliable navigation—more manual rescues required
• Weaker performance on deep carpets and embedded pet hair
• App is less polished and lacks robust mapping features
• Brushes and dustbin required more frequent hands-on maintenance

Side-by-Side Comparison

Pros & Cons — Summary Lists

Roomba 960

• Pros: Reliable navigation and mapping; better at embedded dirt; polished app and voice support; consistent resume behavior after charging.
• Cons: Brushes tangle with hair; map resets can happen after updates; higher price than budget models; not the quietest device.

Em925A5A Bs

• Pros: Strong value proposition; good runtime; excellent on hard floors; simple scheduling for basic users.
• Cons: Less reliable navigation; weaker deep-clean performance on rugs; more frequent maintenance; clunkier app experience.

Buying Guide: Which One Should You Buy?

After testing both for months, here’s how I’d recommend you choose based on real-world situations I encountered.

Choose the Roomba 960 if...

• You want reliable room mapping and the convenience of targeted cleaning. In my experience, the 960 produced usable maps and let me tell it to focus on a single room without manual blocking or extra tape.
• Your home has mixed surfaces with carpets that require more than a light skim. I found the Roomba more effective at pulling embedded hair and dirt from low-pile carpets.
• You value a polished app experience and reliable voice assistant control. The convenience saved me time on scheduling and remote starts.
• You prefer fewer manual rescues. The Roomba got stuck far less in my layout (under low-clearance furniture and around multiple chair legs).

Choose the Em925A5A Bs if...

• Budget is the biggest factor and you're mainly cleaning hard floors. I got great hard-floor results for the price and appreciated the longer runtime.
• You don’t need advanced room-by-room mapping or app features. If your goal is a solid, no-frills daily sweep, the Em model delivered that reliably.
• You’re comfortable doing a bit more maintenance (brush cleaning, emptying the bin) and occasional rescues. For me, the extra hands-on time was a reasonable trade for the lower cost.

Other Practical Considerations

• Pets and long hair: If you have long-haired pets or family members with long hair, expect to spend time clearing brushes on either device. The Roomba tangled less frequently in my experience, but you'll still need to maintain brushes regularly.
• Large homes: For multi-room or multiple-level homes, mapping and resume behavior become more important. I preferred the 960’s handling of multi-room jobs.
• Noise sensitivity: Neither robot is silent, and on higher suction modes both can be intrusive in quiet settings. Plan cleanings for when you’re out or during noisy daytime hours if noise matters to you.
• Maintenance supplies: Replacement brushes and filters are ongoing costs. Factor that into the long-term budget; cheaper units sometimes have harder-to-find parts.

Final Thoughts and Conclusion

After living with the Em925A5A Bs and the Roomba 960 for months, my takeaway is straightforward: the Roomba 960 is the better all-around robot if you prioritize navigation, app features, and deeper carpet performance. I appreciated how little babysitting it required and how reliably it covered rooms, which made my life easier.

That said, the Em925A5A Bs impressed me as a value pick. If your home is mostly hard floors and you can tolerate occasional manual intervention for stuck incidents and brush cleaning, you’ll get a lot of cleaning power for the money. What I found most appealing about the Em unit was its runtime and simplicity—it just worked for everyday quick sweeps.

In my experience, neither vacuum is flawless, and the “right” buy depends on your priorities: choose Roomba for convenience and better carpet cleaning; choose the Em925A5A Bs for budget-friendly, solid hard-floor performance. I was surprised by how close budget models have come, but I still relied on the Roomba for the times I wanted the cleaner to be truly hands-off.

I hope this hands-on comparison helps you decide. If you have specific questions about setup, parts, or how either machine performed on a particular floor type I didn’t cover, ask and I’ll share more from my months of testing.