Marchpower Electric Toothbrush Water Flosser Combo Review: compact 2‑in‑1 that actually cleans between teeth

I’ve been using electric toothbrushes for years, and I’ve had a couple of standalone water flossers too. So when I saw this Marchpower 2‑in‑1 toothbrush + flosser, my first thought was honestly, “this is going to be a gimmick that ends up in a drawer”. But I was curious because my bathroom shelf is already crowded, and the idea of having one compact device instead of two chunky ones sounded pretty good.

I used this combo twice a day for a bit over two weeks, sometimes only brushing, sometimes only flossing, and sometimes using the combination mode where it does both at once. I also took it with me on a weekend trip to see how practical it really is on the go. I’m comparing it to a basic Oral‑B electric brush and a cheap cordless flosser I got from Amazon a year ago.

In practice, it’s aimed at people who want better cleaning than a manual brush but don’t want a big countertop flosser with hoses everywhere. The tank is only 110 ml, so you’re clearly in the “compact and portable” category, not “heavy-duty bathroom machine”. That affects how you use it and what you can expect from it.

Overall, it’s not perfect and there are a couple of small annoyances, but it’s more than just a gadget. It actually cleans well, especially if you’re lazy with flossing like I am. I’ll go through what I liked and what bugged me so you can see if it fits your routine or not.

Price-wise, this sits in that mid‑range zone where you’re not paying top dollar like for a big brand, but it’s also not the rock‑bottom cheap stuff. Considering you get a sonic toothbrush, a portable water flosser, 9 brush heads, 3 nozzles, and a pouch, the value is honestly pretty good. If you bought a separate electric brush and a separate cordless flosser from big brands, you’d easily pay more than this combo.

Where it earns its value for me is the space and convenience. I don’t have to keep two devices charged and stored; I just have one handle. For a small bathroom or for someone who travels, that matters. Also, the fact that they include so many heads means you’re covered for a while before you need replacements, or you can share it with a partner by using different colour rings/heads. That saves a bit of money long term.

On the downside, there are trade‑offs: smaller tank, slightly shorter battery life than some single‑function brushes, and a build that’s good but not high‑end. If you only care about brushing and never plan to use a flosser, then no, this isn’t the best value; you’d be better off with a simple sonic brush. And if you want a super powerful, huge‑tank flosser for serious orthodontic work, a dedicated countertop unit might serve you better.

But if you’re like me—someone who wants better cleaning between teeth without filling the bathroom with gear—this combo hits a nice balance. I’d call the value “pretty solid” for what you get. Not mind‑blowing, but fair, and it feels like you’re paying for actual functionality rather than just a logo.

The first thing you notice is how small the handle is: about 4 x 5 x 16 cm and roughly 230 g. Compared to my old cordless flosser, this feels much lighter and easier to grip. It’s basically like a slightly chunky electric toothbrush rather than a big water gun. That’s nice if you have a small bathroom or you want to throw it in a travel bag. It really does fit in a toiletry pouch without playing Tetris.

The buttons are simple: one for the toothbrush, one for the flosser. Short presses cycle through modes, long presses handle memory and spray mode. The LEDs are small but visible, and you quickly learn which light means which mode. The detachable tank clips on the bottom; it’s not loose, but you do need to make sure it’s properly clicked in or you’ll get a tiny leak when you tilt it. I had that happen once on day two, then started checking the click and never saw it again.

The external hose design is a clever workaround for the small 110 ml tank. For a full flossing session on standard mode, that tank empties pretty fast, especially if you’re slow like me. Plugging in the external hose and dropping it in a mug of water basically gives you a bigger virtual tank without making the device itself huge. It’s not as clean-looking as a big countertop flosser, but it works and doesn’t take permanent space.

Ergonomically, the handle is comfortable, but when you use both brush and flosser together, there’s a bit more vibration and slight hand fatigue if you hold it in a tense grip. It’s not painful or anything, just noticeable if you brush longer. Overall, the design is practical and focused on portability, with some small trade-offs in tank size and a bit of a learning curve with the buttons.

The toothbrush/flosser is battery powered via USB, which is convenient because you can charge it from a laptop, power bank, or standard phone charger. There’s no charging dock, just a cable. That’s fine for travel but less tidy on a permanent bathroom setup if you like everything to have its stand. I just left the cable in a drawer and plugged it in when needed.

In terms of battery life, with my routine (2 full uses per day, sometimes just brushing, sometimes brushing + flossing), I got roughly a week and a half before the battery indicator started blinking. That’s with a mix of modes, mostly soft/standard. If you use the flosser on max power all the time, expect a bit less. For travel, I’d say you’re safe for a long weekend or even a week if you’re not using the flosser like crazy.

Charging time is reasonable. From almost empty to full took around 3 hours on a normal USB charger. It’s not super fast, but you don’t do it every day, so it’s fine. One thing to note: there’s no fancy battery percentage indicator, just basic lights, so you don’t have an exact number. It’s more like “fine” and then “time to charge soon”. Not ideal if you like precise info, but manageable.

Overall, the battery is solid enough for everyday use and travel, but it’s not some endless powerhouse. If you’re used to high‑end brushes that last 3 weeks on a charge, this will feel shorter. For the price and the fact that it powers both a sonic motor and a water pump, I’d rate the battery performance as decent and reliable, just not impressive.

After a couple of weeks, I obviously can’t say how it will hold up for years, but I can comment on the feel and a few stress tests. The plastic body doesn’t feel premium, but it doesn’t feel cheap and hollow either. It’s somewhere in the middle: light but not flimsy. The tank clips feel okay; I removed and reattached the tank multiple times a day when cleaning and refilling, and the latch still feels tight with no play.

The brush heads and nozzles fit with a reassuring click. I twisted and pulled them a bit harder than usual to see if anything felt loose, and they stayed put. The DuPont bristles on the heads look standard; after two weeks of twice‑daily brushing, the one head I mainly used didn’t flare out or get weird, so that’s a good sign. The water nozzles are typical plastic tips; if you’re clumsy and drop them on tile, they might crack like any other brand, but that’s not specific to this model.

As for water resistance, I rinsed the handle under the tap quickly a few times (not soaking, just a rinse) and had no issues. You obviously shouldn’t dunk it or use it plugged in around water, as the safety warning says, but normal bathroom splashes are fine. Buttons still work smoothly, no sticking or weirdness so far.

If I had to nitpick, the PU pouch is on the thin side. It’s okay for travel, but it won’t protect it from a big impact in a suitcase. I’d avoid crushing it under heavy stuff. In general, though, for a device made in China at this price, the durability feels pretty solid. I’d expect it to last a couple of years if you don’t abuse it, but if you’re super rough with your gadgets, you might want something chunkier with a more rubberised body.

The device offers 3 brush modes (standard, soft, pulse) and 4 flosser modes (standard, soft, pulse, spray). On paper that sounds like overkill, but in practice I actually used most of them. The memory function is handy: once you long‑press to save your favourite mode, it powers on directly there, so you don’t have to cycle every time. I set soft mode for mornings and standard for evenings and barely touched the buttons after that.

Water pressure is where you need to be a bit careful. If you jump straight to standard or pulse mode and aim at your gums too close, you’ll feel it. It’s not painful, but it can be a bit harsh if you’re not used to flossers. Starting on soft and gradually increasing was the best strategy for me. The adjustable PSI range (2–140) is wide enough that you can go from very gentle to pretty strong. Compared to my old budget flosser, this one feels more controlled and less splashy, especially in spray mode where water only comes out while you hold the button.

The spray mode is actually useful if you’re trying to target a specific spot, like around braces or a crown. You press, release, press again, and you don’t waste water in between. It’s also good if you share the device with someone and want to avoid spraying half the sink while you switch positions. The pulse mode for the flosser gives a kind of massage to the gums; I used it every few days, and my gums looked a bit less red around one area that tends to get irritated.

Noise level is acceptable: it’s not silent, but it’s less loud than my old Oral‑B oscillating brush and slightly quieter than my previous flosser. You’ll still wake a very light sleeper in the next room, but it’s not a drill sound. In daily use, the only performance downside is the small tank: on standard flosser mode, you may need to refill once if you take your time. With the external hose into a glass, that problem disappears, but it adds an extra step. So performance is solid overall, with some minor compromises for the compact size.

Out of the box, you get quite a lot of bits. There’s the main 2‑in‑1 handle, 9 brush heads (with different colours and hardness levels), 3 water flosser nozzles, the 110 ml detachable tank, an external hose for using a glass or bottle as a tank, a USB charging cable, and a small PU pouch. No wall adapter, just the cable, which is pretty standard now but still something to know if you don’t already have a spare plug.

The heads are a mix: you get harder and softer DuPont bristles, and a special brush head that has a water outlet built into it for the “brush while flossing” mode. That last one is the interesting part of this product. You can also just use the normal brush heads and use the flosser separately with a regular nozzle. So in terms of flexibility, it’s pretty solid: you can use it like a normal sonic brush, a stand‑alone flosser, or a hybrid.

The manual is clear enough but a bit cramped. You do need to actually read it once, because the different modes and long presses (for memory and spray mode) aren’t super intuitive the first time. After a couple of days I didn’t need to think about it anymore, but on day one I had that “why is nothing happening?” moment a few times until I realised I was pressing the wrong button or not long enough.

In short, the kit is generous for the price: lots of heads and options, and it feels more like a complete set than a bare-bones device. On the flip side, if you like simple stuff with one button and that’s it, this might feel a bit overcomplicated at first with all the modes and attachments lying around the sink.

This is the main point: does this combo really clean better than just using an electric toothbrush and maybe flossing with string once in a while? For me, the answer is yes, mainly because the water flosser part forces me to clean between teeth more often. After a week of using the standard brush mode plus flosser standard mode at night, my teeth felt smoother with my tongue, especially around the molars where food usually hides.

The sonic brush itself is decent: 40,000 vibrations per minute is in the same ballpark as other mid‑range sonic brushes. On its own, it does the job: plaque comes off, teeth feel clean, and the soft mode is gentle enough for my slightly sensitive gums. The pulse mode is a bit more intense and I used it when my teeth felt rougher after a day of too much coffee and snacks. It’s not mind‑blowing, but it’s solid and clearly better than a manual brush.

The water flosser is where I saw the biggest difference. The adjustable pressure (up to 140 PSI) gives you room to start soft and then ramp up. On the soft mode, it’s comfortable and good for everyday use. On standard, it dislodged bits of food that my brush clearly didn’t remove, especially around a slightly crooked tooth I have. I tried the highest pressure a couple of times; it was a bit much for my gums, but effective when I knew I had stuff stuck after popcorn or meat.

The combined mode (brushing and flushing at the same time) sounds like a gimmick, but it’s actually efficient if you’re in a hurry. You basically cut your routine time in half. The downside is you use up the tank faster and need to pay attention not to spray water everywhere while moving the head around. But in terms of pure cleaning, my mouth felt very clean after those sessions, almost like after a dental cleaning, just not as thorough of course. So on effectiveness, I’d say it clearly gets the job done and pushes you toward better habits.