Eureka, which you probably know from the upright vacuum your parents and grandparents had, is now in the robot vacuum business. They aren’t new to robot vacuums, but this is the first robot vacuum we’ve reviewed from Eureka and have been very impressed with it so far.
One thing that really makes the J15 Pro Ultra stand out is the literal razor blades inside the base to cut through hair. This is unlike anything we’ve seen on any other robot vacuum. But is that enough to make it worthwhile to purchase this $999 robot vacuum? Let’s find out in our full review.
Eureka’s back — and sharper than ever. The J15 Pro Ultra isn’t just another high-end robot vacuum; it’s a fully automated cleaning system with literal razor blades inside its base, powerful suction, and a design smart enough to clean itself while you relax.
Pros
- Impressive mopping capability
- Mop extends to get the edges and corners of the room
- Base can clean the mops and empty the dustbin, as well as cut the hair off of the rolling brush
- Incredible suction power, particularly useful on low-profile carpet
- Very good at avoiding obstacles
Cons
- Can get pretty loud, due to the strong suction
- A bit on the pricey side
Eureka sent over a review unit of the J15 Pro Ultra, and we’ve been using it for about 2 months before writing this review. This is not a sponsored review, however we have done some sponsored content with Eureka in the past. That did not influence our experience and verdict on the Eureka J15 Pro Ultra, however.
Eureka J15 Pro Ultra Specs
Eureka J15 Pro Ultra Specs
| Robot Dimensions | 13.94 × 13.98 × 4.61 inches |
| Base station Dimensions | 15.55 x 18.03 x 18.43 inches |
| Navigation | LDS |
| Obstacle Avoidance | Single Lazer+RGB camera |
| Suction Power | 16,200Pa |
| Dustbin capacity | 3L |
| Battery Capacity | 5,200mAh |
Eureka J15 Pro Ultra Review: Design
This is going to sound crazy to say, but I actually do really like the Eureka J15 Pro Ultra’s design. Both the robot vacuum itself and the base station look really nice. These look modern and they can just blend into your decore, since it is in all black. There are some other robot vacuums I’ve reviewed over the years, where the vacuum’s base was so large, it got in the way and really stood out. Which is not what you want.
So starting with the base. The front cover does come off, to show the dustbag. Now, I’ve been using this for over two months now, and it has not needed to be replaced. Eureka does say that it can handle up to “75 days of hands-free maintenance,” so I’m right at that point where it should need to be replaced. But it’s less than half full. Of course, a big part of that is because I do have a robot vacuum on each level of my townhome, so it’s not cleaning a large space like it would be for your home. So do keep that in mind.
The top of the base does have two water tanks with one being clean water and the other being dirty. Now, I say this in every robot vacuum review, but make sure you empty that dirty water tank often. It will start to stink, and it can get mighty stinky after some time. In my townhouse, it’s mostly carpet, so I don’t use the mop all that often, but when I do, I definitely need to empty the dirty water tank.
The bottom of the base has a spot for the mopping pads to be cleaned and dried using heat. The station will also clean out the base of the station so that everything is nice and clean. It does a really good job of that, to be honest. It also cuts the hair off the roller and empties the dust bin while docked.
The vacuum itself is a squircle
When robot vacuums first started popping up in living rooms more than a decade ago, one company famously tried to reinvent the shape. While everyone else was building round little discs, they went with a square body designed to reach deep into corners and along baseboards. It was clever — and it actually worked — but that company didn’t survive long enough to see the market catch up. Fast forward to today, and we’re seeing a resurgence of that idea in what’s now called the “squircle” design. The Eureka J15 Pro Ultra embraces that shape beautifully, blending the maneuverability of a circle with the edge-reaching practicality of a square.
This hybrid design isn’t just for looks — it serves a real purpose. The slightly squared-off front allows the J15 Pro Ultra to get closer to walls and into those tricky corner spots where dust likes to hide. It doesn’t rely on exaggerated side brushes like some competitors; instead, Eureka’s longer bristles and optimized airflow help it sweep debris cleanly from corners without flinging it across the room. The dual mopping pads extend slightly beyond the chassis, giving it that extra reach along kitchen edges or tight hallway corners that most round bots tend to miss.
Flip it over and you’ll find a refreshingly simple but well-engineered layout. There are two sturdy drive wheels, a guiding caster up front, and a single side brush working in tandem with a bristle roller — a design choice that bucks the industry’s growing obsession with dual rollers. Eureka’s single-brush approach keeps maintenance simple while still handling pet hair and fine debris surprisingly well. The twin mopping pads at the back cover a wide footprint, applying even pressure for consistent results without dragging excess water.
Up top, you’ll find the LDS navigation dome — the little “turret” that gives the J15 Pro Ultra its brainpower — alongside clearly labeled power and home buttons and easy access to the dustbin. The overall design feels practical yet premium, with a sleek matte-black finish that looks more like a modern appliance and less like a toy.
All told, the Eureka J15 Pro Ultra isn’t trying to reinvent what a robot vacuum should look like — it’s refining the formula. The squircle shape gives it real functional advantages, the build quality feels high-end, and every design element serves a purpose. It’s the kind of robot vacuum you don’t mind leaving out in the open because it looks like it belongs there — and more importantly, it actually gets the job done.
Eureka J15 Pro Ultra Review: Performance
Before we jump into the performance section, let me just preface this by saying that I do have a dog who is currently getting in her winter coat, so there’s lots of dog hair in my home. That is quite a task for a robot vacuum. And I was very excited to see how the J15 Pro Ultra did with all of that hair. And well, it did pretty well.
Eureka debuted its FlexiRazor system with the J15 series this past year. This essentially has a number of razor blades in the base that will cut the hair off of the roller brush while it is docked. This is great because you don’t have to worry about the razors cutting you or your carpet, since they are in the base and not in the vacuum.
I wouldn’t say it’s the best solution for hair tangles, but it is a pretty good one. I’ve reviewed a few other robot vacuums that handle these tangles differently and actually performed better. While Eureka did a good job of getting the tangles out, that doesn’t help when it gets tangled while its cleaning. And then it screams for help. That’s the main area where this could be improved.
Incredible suction, even on low-profile carpet
Eureka boasts a suction power of 16,200Pa, which at this point, that number is kind of meaningless. We’re seeing robot vacuums from 5,000Pa up to over 20,000Pa, and they mostly work the same. But I will say that the J15 Pro Ultra’s suction power is legit. I have low-profile carpet in my home, and you can see the path of the robot vacuum after it’s cleaned, because the suction is so strong. That hasn’t been the case with a lot of other robot vacuums.
In fact, the suction is so strong, it picked up a M14 screw. Which it needed help after, because the brush got jammed. That’s not a small screw either, and it picked it up like it was nothing. That just shows how well the suction power does on this vacuum.
Mopping is top-notch
While I don’t have a lot of rooms that need mopping, what little bit of mopping that the J15 Pro Ultra was able to do for me, was pretty good. It mostly mopped the kitchen which occasionally got pretty messy. But it was able to easily mop the floor, clean up dried on messes, and even get under the cabinets which a lot of robot vacuums are unable to do. That’s because of the mop jetting out to actually get all the way to the edge.
Of course, the best part is when it is docked and it cleans the mops, as well as heat drying them. This is great because you have fresh mops to clean your floors again, and there’s no bacteria growing in there, because of the wet mopping pads. On top of that, the base does also clean the basin where the mopping pads were cleaned, so its not sitting in filth.
Eureka J15 Pro Ultra Review: Base Station
The base station on the Eureka J15 Pro Ultra isn’t just a fancy charging dock — it’s the brains of the operation and the reason this vacuum can truly be called “hands-free.” Every time the robot returns home, the base automatically goes to work. It empties the dustbin, scrubs the mopping pads, rinses out the cleaning tray, and even heat-dries the pads to prevent odor or mold buildup. The result? You don’t have to touch dirty water, tangled hair, or soggy mop pads.
What really impressed me is how thorough the base station is at clearing out the vacuum’s internal dustbin. It uses strong suction to pull out everything — pet hair, fine dust, even the occasional stray crumb — leaving the vacuum ready to go again. The FlexiRazor system inside also cuts away hair from the roller brush, so you’re not pulling out clumps of fur by hand.
On the mopping side, the cleaning tray under the vacuum automatically rinses and spins the dual mop pads, then dries them using warm air. The heat drying makes a huge difference — the pads stay fresh and don’t develop that funky “wet mop” smell that plagues other robot mops after a few days. The base even flushes itself out after cleaning, which keeps the system surprisingly sanitary.
In short, the J15 Pro Ultra’s base station does an excellent job of maintaining the robot so you don’t have to. It’s one of those setups that makes you realize just how far robot vacuums have come — from something that needed constant babysitting to a genuinely self-sufficient cleaning system.
Should you buy the Eureka J15 Pro Ultra?
If you’re looking for a truly hands-free cleaning experience, the Eureka J15 Pro Ultra delivers on that promise better than most. This isn’t just a rebranded off-the-shelf robot vacuum — it feels like Eureka actually sat down and thought about how people really use these things. From the FlexiRazor system that slices through tangled pet hair to the base station that washes and heat-dries mop pads automatically, everything about this robot is designed to reduce maintenance. And it succeeds.
Performance-wise, the J15 Pro Ultra punches hard. The suction power is genuinely impressive — not just marketing fluff — pulling dirt and debris out of low-pile carpet with visible results. The mopping function is equally capable, handling sticky kitchen messes and edge cleaning better than most combo bots in its class. The “squircle” design helps it reach into corners more effectively, and the smart base takes care of nearly everything once the job’s done.
Of course, it’s not perfect. At $999, this is a serious investment — and while the FlexiRazor system is clever, it doesn’t prevent hair tangles mid-clean. You’ll still occasionally need to rescue it if it gets stuck. The app experience could also be more polished compared to market leaders like Roborock or Ecovacs. But these are relatively small gripes for what’s otherwise a powerful, low-maintenance cleaning companion.
If you have pets, a mix of hard floors and carpets, and you hate dealing with dirty mop pads or tangled brushes, the Eureka J15 Pro Ultra is absolutely worth considering. It’s not the cheapest robot vacuum out there, but it’s one of the few that truly feels premium from design to daily use. For busy households that want an automated cleaning system that actually takes care of itself, this is a solid buy.
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