SOOCAS Neos II Ultra Review: I Switched From Sonicare to a Toothbrush That Flosses For You
Brushing and flossing with one device? That's exactly the face I pulled when SOOCAS first got in touch. I'm all about gear that makes life easier without adding time to the day — between filming, editing, running the channel and trying to get to the gym, I want my routines as simple as they'll go. So when they told me they had a two-in-one that brushes and water flosses in a single cycle, and that it was built for travel, I was sceptical but very curious. A few weeks later, the SOOCAS Neos II Ultra has quietly taken over my bathroom bench.
Today we're testing the SOOCAS Neos II Ultra — a full sonic electric toothbrush with a proper water flosser built into the same handle. Unboxing, a real bathroom demo, then straight up against my Sonicare and my Oclean to see whether a two-in-one actually beats two separate devices. And the honest part at the end: what it doesn't replace, and who shouldn't bother.
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01What Is the SOOCAS Neos II Ultra?
On the outside it looks like a slightly chunky electric toothbrush. On the inside it's a sonic toothbrush and a water flosser that had a baby. Up top there's a sonic brush doing up to 60,000 movements per minute, with the head oscillating about 20° each way rather than just vibrating. Inside the handle sits a water tank and a pump that pushes a jet out at up to 124 PSI between your teeth.
So instead of brush, then floss, then rinse, you fill the tank, put toothpaste on like normal, and it walks you through a 2-minute brush cycle followed by about a minute of water flossing — one button press, one routine. That's the whole idea, and it's a bigger deal than it sounds. Flossing isn't hard. It's just the bit everyone skips.
02Unboxing & What's in the Box
Out of the box you get the Neos II Ultra handle, two flossing brush heads, a travel case, a protective cap for the heads, a magnetic USB-A charging cable that snaps onto the back, and a little brush for cleaning out the water reservoir. There's no power brick, but any standard USB charger does the job.
In the hand it feels solid — mine's the darker colour with a soft-touch finish. It's thicker than a normal electric toothbrush, obviously, because there's a water tank inside, but at around 225g it doesn't feel like a dumbbell in the bathroom. And you lot know I like dumbbells. The whole thing is IPX8 waterproof, so you can rinse it under the tap or take it into the shower, which for me is a big plus.
03How It Works: Modes & Intensity
The controls are simple. One button runs the full brush-and-floss cycle; the other handles modes and intensity. There are two main modes. The first is the full routine — 2 minutes of brushing with 30-second quadrant reminders, then about a minute of water flossing. That's your "I've got time, let's do it properly" setting, and it's the one I'd tell you to use. Don't cheat on the brushing.
The second is quick floss mode, which skips straight to a shorter water floss session — handy for blasting something out from between your teeth after a meal. Within both, you get three intensity levels: gentle, medium and strong. If you've got sensitive gums, start gentle. You don't want your mouth power-washed on day one.
04The Bathroom Test: Brush & Floss in One Go
Toothpaste on, tank filled, full cycle running. The first thing you feel is the brush head genuinely getting into the teeth — because it oscillates rather than just buzzing, it's scrubbing across the surface instead of vibrating against it. Compared to my other brushes that's a noticeably better clean, and you can see the shine on your teeth straight after.
Then the floss stage kicks in on its own and you hear it — a pulsing jet driving water between the teeth and pushing loose debris out. Fair warning from my first go: point it at your teeth before you fire it, because it will absolutely spray you in the face. After a full cycle my mouth honestly feels like it's had one of those longer hygienist cleans. Teeth are smooth when I run my tongue over them, gums feel massaged rather than abused, and there's none of that slightly raw feeling you get when you've gone too hard with string floss.
05Battery, Charging & the Water Tank
Battery life is very good. There's a 3,000mAh cell inside and SOOCAS quotes around 30 days per charge. I've been using it twice a day for a couple of weeks with the full brush-and-floss routine and the indicator has barely moved, so it genuinely feels like a charge-it-and-forget-it device.
The charger is magnetic and port-free, which I like more than I expected to. There's no little charging hole for gunk and mould to creep into — the thing that drives me mad with older toothbrushes. You just clip it on and the light comes up.
The tank holds enough for roughly one full minute of flossing, which at medium intensity covers a complete cycle for me. If you want to sit in floss mode for two or three minutes you'll need to top it up once, but for an everyday clean I'm not refilling mid-session. The tank door opens at the back with a decent-sized opening, and the included cleaning brush makes scrubbing it out straightforward.
06SOOCAS vs Sonicare & Oclean
I put it next to my Oclean and my Sonicare, and the difference comes down to two things. First, movement: the Neos II Ultra oscillates around the tooth on an angle, while the other two rely on vibration. That's why it feels like it's actually scrubbing. Second, and more obviously, neither of the others has a flosser in it — and they're rated around 14 days of battery against 30 here.
In pure brushing terms the Neos II Ultra is right up there. The power is comparable, the bristles feel good quality, and if you only ever used brush mode you'd still have a solid sonic toothbrush. Where it pulls ahead is that built-in flossing stage. With a normal brush you finish your two minutes and then have to decide whether you can be bothered to go and grab the floss. With this, the decision is removed — you hit one button and the flossing just happens. No running out of tape, no talking yourself out of it.
A Sonicare plus a separate water pick will still give you an excellent clean. But that's two devices, more clutter on the bench, more to pack when you travel and more time. Have a look at the size of a standalone water pick sitting next to this thing — it's not close. The Neos II Ultra compresses the whole routine into one handle in about 3 minutes start to finish.
07Living With It: Travel, Mess & Daily Use
First honest thought: this does not magically replace every bit of flossing forever. If you've got really tight contacts between some teeth, or you're dealing with serious gum issues, keep traditional floss or interdental brushes around. But measured against my actual normal routine — brush properly, floss when I remember — this has made flossing happen every single day, because it's baked into the same button press.
Second, it's brilliant for travel. It's lived in my travel bag for a while now because it saves carrying a separate flosser: light, compact, comes with its own case, and with a month of battery I'm not hunting for a charger in week two of a trip.
Third, it's surprisingly clean to live with. The design doesn't have a lot of weird ridges and seams for toothpaste gunk to collect in, and the bristles are copper-free, so there's no little ring of metal at the base of the head. Being waterproof, the whole thing rinses off under the tap in seconds.
08The Plaque Claims — and My Honest Caveat
SOOCAS talks about removing up to 100% of plaque and 35 times more stains than a manual brush, and says it's been tested to fully clear plaque in lab setups. I'm not a dentist, so I can't independently verify those numbers for you and I won't pretend otherwise. What I can tell you is that compared with a normal electric toothbrush on its own, my mouth feels noticeably cleaner after a Neos II Ultra run — especially between the teeth.
SOOCAS has also been working with dentists, and the point a New York–based dentist makes on their site matches what I found in practice: pairing proper brushing with proper flossing in a single step is valuable mostly because it gets people to actually do the flossing. Getting someone to stick with it is half the battle. And think about it — 60,000 oscillations a minute against you scrubbing back and forth by hand. It's not a fair fight.
⚙Full Specs
The Verdict & Who It's For
What I love most: it simplifies my routine instead of adding steps. The brushing genuinely competes with my Sonicare thanks to the oscillation, the flossing stage fires automatically so willpower never enters into it, and the whole thing is done in about three minutes. Add a month of battery, magnetic port-free charging, IPX8 so it lives in the shower, and a travel case that replaces two devices in my bag — it's earned a permanent spot in my daily routine, which not many gadgets do.
The catches, honestly: it won't replace every bit of flossing forever — tight contacts or real gum problems still want traditional floss or interdental brushes, so keep some around. The tank covers about a minute, so longer floss sessions mean a top-up. It's thicker than a normal brush because of that tank. There's no power brick in the box. The jet will spray you in the face if you fire it before it's in your mouth. And I'm not a dentist, so SOOCAS's 100%-plaque and 35x-stains figures are their claims, not my measurements — what I can vouch for is how much cleaner it feels between the teeth. Worth saying too: I've had this a few weeks, not a few years, so I can't tell you yet how the pump and the tank seal hold up long-term.
Who's it for? If you happily floss with string every night without fail and you love the ritual, you don't need this — a good sonic brush and your existing routine is fine. But if you're like me, you care about your teeth, you've had a few stern lectures from dentists over the years, and you still find flossing annoying or just forget it, this makes a lot of sense. Same if you travel a lot, work odd hours, or you're simply busy: instead of five, six, seven minutes for a full brush and floss, you're done in three. And if you're still on a manual brush — get an electric one, and this is right up there at the top.
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?Frequently Asked Questions
Is the SOOCAS Neos II Ultra a toothbrush and water flosser in one?+
Yes. It's a sonic electric toothbrush with a water flosser built into the same handle. You fill the small tank, add toothpaste as normal, and one button press runs a 2-minute brush cycle followed by about a minute of water flossing at up to 124 PSI — no second device needed.
Is there a SOOCAS Neos II Ultra discount code?+
Yes — use code NEOS10 for $10 off at the SOOCAS official website, or SOOCAS10 for $10 off on Amazon.
How long does the SOOCAS Neos II Ultra battery last?+
SOOCAS quotes around 30 days per charge from the 3,000mAh battery. Using it twice a day for a couple of weeks with the full brush-and-floss routine, the indicator barely moved for me. It charges with a magnetic, port-free USB-A cable that clips onto the back — no charging hole for gunk to get into. There's no power brick in the box, but any USB charger works.
Is the SOOCAS Neos II Ultra better than a Sonicare?+
For pure brushing they're comparable, though the SOOCAS oscillates around the tooth rather than only vibrating, which feels like a more thorough scrub. Where it pulls ahead is the built-in flossing — a Sonicare plus a separate water pick gives a great clean too, but that's two devices, more bench clutter, more to pack and more time. This does the lot in about three minutes.
Does a water flosser replace normal flossing?+
Not entirely. If you have very tight contacts between certain teeth, or you're dealing with serious gum issues, keep traditional floss or interdental brushes on hand. But if you're someone who skips flossing or forgets it, a built-in water flosser means it actually happens every day — which beats perfect flossing that never gets done. I'm not a dentist, so take anything about your own gums to one.
Is the SOOCAS Neos II Ultra good for travel?+
It's one of its best arguments. It replaces a toothbrush and a separate flosser in your bag, weighs around 225g, comes with a travel case, and the month-long battery means you're not hunting for a charger halfway through a trip. It's IPX8 waterproof too, so it rinses under a tap or goes in the shower.
Can you use the SOOCAS Neos II Ultra in the shower?+
Yes — it's rated IPX8, so it handles being rinsed under the tap and used in the shower. That also makes cleaning it easy, and the design has few ridges or seams for toothpaste to build up in.
Affiliate Disclosure: This article contains affiliate links. As an Amazon Associate and SOOCAS affiliate we may earn a commission from qualifying purchases at no additional cost to you. All opinions are based on hands-on real-world testing. I'm not a dentist — this is real-world use and my honest experience, not dental advice.
