Korean Robot Vacuums Are Beating Roomba — Here's Proof
Korean Robot Vacuums Are Beating Roomba — Here's Proof
I'm gonna make a bold claim: Korean robot vacuums are flat-out better than anything iRobot is putting out right now. And I don't say that as some nationalist flex — I moved to Seoul from the States, I owned a Roomba j7+ for two years back home, and I genuinely liked it. But after living with both a Samsung Bespoke Jet Bot AI and an LG CordZero R5 in my Mapo-gu apartment for the past two months? Yeah. It's not even close.
Here's what happened, what I learned, and why you should probably be paying attention to Korean robot vacuums even if you don't live in Korea.
How I Ended Up With Two Robot Vacuums
So this is kinda embarrassing. I didn't mean to own two robot vacuums at the same time. The Samsung was a planned purchase — I'd been eyeing the Bespoke Jet Bot AI ever since I saw it on display at the Samsung Digital Plaza near Gangnam station. The floor model was navigating around fake furniture like it had eyes, and the staff kept pointing at the LiDAR sensor on top like it was some kind of sci-fi weapon. I was sold.
But then my friend Jihyun upgraded her LG setup and offered me her CordZero R5 for basically nothing. Like, ₩150,000 (about $112) for a robot vacuum that retails around ₩600,000. I couldn't say no. So suddenly I had two robot vacuums in a 28-pyeong apartment, and honestly? Best accident ever, because now I can actually compare them side by side.
For context: my old Roomba j7+ cost me around $600 when I bought it in 2024. The Samsung Bespoke Jet Bot AI ran me ₩899,000 (roughly $670) at full price from Coupang. And the LG came through the friend discount, but its street price sits around ₩599,000 (~$447).
The Samsung Bespoke Jet Bot AI: Ridiculously Smart
I'll start with the Samsung because it's the one I bought with my own money and the one I use as my daily driver.
Navigation That Actually Makes Sense
My old Roomba used to bump into my shoe rack, pause, recalculate, bump again, then eventually figure out how to get around it. Every single time. The Bespoke Jet Bot? It maps the entire apartment on its first run and then navigates like it's memorized the floor plan. Because it has. The LiDAR sensor combined with the AI camera means it recognizes objects — shoes on the floor, charging cables, my backpack — and routes around them without contact.
I tested this deliberately. Left a pair of sneakers in the middle of my living room. The Roomba (when I still had it) would've bonked right into them. The Jet Bot curved around them with maybe a two-centimeter gap. Honestly kinda eerie how precise it is.
Suction and Cleaning Performance
Here's where it gets interesting. Samsung rates this at 100W of suction power, which doesn't mean much as a number, but in practice? I have a mix of laminate flooring and one area rug in the living room, and this thing picks up everything. Cat hair (my neighbor's cat visits sometimes — long story), dust, rice grains from when I'm being careless in the kitchen. The transition from hard floor to rug is smooth — no getting stuck, no weird hesitation.
The mopping function is decent too. Not amazing. It uses a spinning pad that stays damp, and it'll handle light dust and footprints fine. But if you've got actual sticky spills? You're still getting on your hands and knees. That's just the reality of robot mops in 2026. No robot is replacing a proper mop session yet.
The Auto-Empty Station
This was the feature that sold me. After each cleaning run, the Jet Bot returns to its station and the station sucks all the debris out of the robot's dustbin into a bigger bag. The suction sound during auto-empty is... aggressive. Like, don't schedule a cleaning run during a quiet work-from-home call. It lasts about 10 seconds and sounds like a small jet engine (fitting, I guess, given the name). The bags last me about 5-6 weeks before needing replacement, and a pack of 5 runs around ₩25,000 (~$19) on Coupang.
The LG CordZero R5: The Quiet Workhorse
Now the LG. This one surprised me because I'd always thought of LG's home appliance game as being a tier below Samsung's (controversial opinion in Korea, I know). But the CordZero R5 is genuinely impressive in its own right.
It's So Quiet
First thing I noticed: this thing is whisper-quiet on its normal setting. Like, I can run it while watching a drama and barely notice. My Samsung on standard mode has this noticeable hum — not loud, but present. The LG on its normal setting? I've literally forgotten it was running. Had to check the app to confirm.
On its max power setting, sure, it gets louder. But normal daily cleaning? Almost silent. If you work from home or have a baby or just hate unnecessary noise, this is a big deal.
Mopping Is Better Than Samsung's
Okay so here's where the LG edges ahead. The mopping system on the R5 uses a dual spinning mop that oscillates, and it applies more consistent downward pressure. I did a super scientific test (read: I dripped soy sauce on my kitchen floor and timed both robots). The LG cleaned the soy sauce spot on a single pass. The Samsung left a faint shadow that needed a second go. Not a huge difference, but for mopping specifically, LG wins.
Navigation Is Good, Not Great
The LG uses LiDAR too, and it maps well. But it's not as good as the Samsung at recognizing small objects on the floor. It'll navigate around furniture and walls perfectly, but a stray sock or a USB cable? It might try to eat it. I've had to rescue it from a phone charger cable twice. The Samsung's AI camera gives it an edge here that pure LiDAR can't match.
Build Quality
The LG feels lighter and a bit more plasticky than the Samsung. Not cheap, just... less premium. The dustbin is slightly smaller too. But honestly, for the price difference, these are minor complaints. The cleaning performance where it counts — floors — is excellent.
So What About Roomba?
I need to be fair here. My Roomba j7+ was a solid vacuum. I used it for almost two years and it cleaned well. iRobot basically invented this category. But comparing my j7+ experience to these two Korean robots, a few things stand out:
Navigation: The Roomba's obstacle avoidance was fine for 2024 standards. But it bumped into things more, got confused in corners more, and its mapping felt less precise. Both the Samsung and LG create cleaner maps and navigate more efficiently. My Samsung finishes my entire apartment in about 25 minutes. The Roomba used to take 40+ for a similar-sized space, partly because it overlapped its paths more.
Suction: Comparable, honestly. The Roomba j7+ had plenty of suction. I wouldn't say the Korean vacuums blow it away (pun intended) on raw cleaning power for hard floors. Where they pull ahead is on the rug transition and edge cleaning.
Mopping: The Roomba j7+ didn't mop. You'd need a Braava or the newer Combo models. Both Korean vacuums do vacuum + mop in one run. That's a massive convenience win.
App experience: Samsung SmartThings and LG ThinQ are both solid. The Roomba app was fine too. Honestly, they're all pretty similar. Set schedules, draw no-go zones, check cleaning history. The Samsung app has slightly more granular controls (you can set suction levels per room), but nothing that would sway a purchase decision.
Price: And here's the kicker. In the US, the Roomba j7+ launched around $800. The Samsung Bespoke Jet Bot AI can be found for $500-700 depending on sales. The LG CordZero R5 goes for even less. You're getting more features for less money with the Korean options.
My Actual Daily Setup
After two months of testing, here's what I settled on: the Samsung runs every weekday morning at 9:30 AM while I'm at my desk working. It does a full vacuum + light mop of the entire apartment. The LG I run on weekends for a deeper mop of the kitchen and bathroom floors, since its mopping is better.
Is owning two robot vacuums excessive? Absolutely. Am I getting rid of either one? Absolutely not.
If I had to pick just one, though? The Samsung Bespoke Jet Bot AI. The object recognition, the auto-empty station, and the overall intelligence of its cleaning patterns make it the better all-around choice. The LG is fantastic for the price and wins on mopping and noise levels, but the Samsung just feels like it's a generation ahead in terms of smart features.
Quick Specs Comparison
| Feature | Samsung Bespoke Jet Bot AI | LG CordZero R5 | Roomba j7+ (for reference) |
|---|---|---|---|
| Price (Korea) | ₩899,000 (~$670) | ₩599,000 (~$447) | N/A (US $799) |
| Navigation | LiDAR + AI Camera | LiDAR | Front camera |
| Mopping | Yes (spinning pad) | Yes (dual spinning) | No |
| Auto-Empty | Yes | Optional | Yes |
| Noise (normal) | Moderate | Very quiet | Moderate |
| Runtime | ~180 min | ~120 min | ~75 min |
| Object Avoidance | Excellent | Good | Good |
| App | SmartThings | ThinQ | iRobot |
Things I Wish Were Better
Look, no product is perfect, and I'd be lying if I said these vacuums had zero issues.
Samsung annoyances: The auto-empty station is loud. Really loud. I had to move it away from my bedroom wall because it would wake me up on early morning runs. Also, the replacement bags feel like a racket — ₩25,000 for five bags that each last about a month is basically a subscription fee. And the mopping, while convenient, won't replace an actual mop for real spills.
LG annoyances: Gets tangled on cables. I've had to cable-manage my entire apartment because of this thing. The dustbin fills up faster since I don't have the auto-empty station for it (it's an add-on for this model). And the app occasionally loses connection and needs to be re-paired, which is irritating.
Both: Neither handles the gap between my sofa and the wall perfectly. There's a 12cm gap and both vacuums are too wide to get in there. I still have to manually vacuum that strip. Also, both struggle with very dark-colored rugs — I've read this is a sensor issue common to most LiDAR-based vacuums, something about the dark surface absorbing the laser signal.
Who Should Buy What
Get the Samsung Bespoke Jet Bot AI if: you want the smartest navigation, don't mind the auto-empty noise, and you'd rather pay more upfront than deal with compromises. This is the best overall Korean robot vacuum I've used. It's the one I'd buy again.
Get the LG CordZero R5 if: noise is a priority, you want better mopping, or you're trying to keep the budget under ₩600,000. It's a genuinely great vacuum that happens to cost less. The mopping alone might be worth it if you have mostly hard floors.
Stick with Roomba if: you're in the US, don't want to deal with importing, and just need a straightforward vacuum with no mopping. The newer Roomba Combo models do mop now, and iRobot's customer support in North America is hard to beat. But purely on tech and value? The Korean options are ahead.
Final Take
Two months ago, I thought robot vacuums were all pretty much the same — a round disc that bumps around your apartment. I was wrong. The gap between what Samsung and LG are doing and what the rest of the market offers is real, and it's growing. Korean companies have been making home appliances longer than most people realize, and that expertise shows in these vacuums.
My apartment has never been cleaner. My shoe rack has never been so carefully avoided. And my friend Jihyun has never stopped reminding me that I owe her for the LG deal.
If you've been thinking about upgrading your vacuum situation and haven't considered Korean brands, maybe it's time. These robots are the real deal.
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