Oral-B iO9 Electric Toothbrush Review: a high-tech brush that cleans well but overcomplicates travel

I’ve been using the Oral-B iO9 for a few weeks now, after switching from a much cheaper Oral-B Pro model. I bought it mostly out of curiosity and because my old handle was dying. The big promise here is smarter brushing, better plaque removal, and a fancy charging travel case. On paper it sounds like the top-of-the-range gadget for teeth, but once you actually live with it day to day, the picture is a bit less shiny.

My routine is simple: brush twice a day, around two minutes, nothing fancy. I’m not the type who needs an app to tell me how to move my hand. So I was very curious to see if all the iO9 features – pressure sensor, AI position tracking, screen on the handle – actually change anything in practice, or if it’s just tech thrown at a basic job. I also travel regularly with only hand luggage, so the travel case with charging was a big selling point for me.

Right away, I can say this: the clean feeling after brushing is very good. My teeth feel smoother than with my old brush and my gums haven’t bled once, even when I used the more powerful modes. So from a pure cleaning point of view, it does the job and does it well. But when you look at the price, the weird charging choices, and the whole app/AI thing, you start asking yourself if you really needed all of that for brushing your teeth.

So in this review I’ll go through what actually matters after some real use: how it feels in the mouth, how the battery behaves, what’s annoying, and if it’s worth spending this kind of money compared with a normal Oral-B electric brush. Spoiler: it’s not a disaster, but it’s far from perfect, and the travel charging setup in particular is pretty frustrating.

This is where things get tricky. The Oral-B iO9 is not cheap. You’re paying a premium price for a toothbrush, and that sets expectations high. From a pure cleaning and comfort point of view, the brush delivers: teeth feel cleaner than with a basic model, the pressure sensor is genuinely useful, and the motor is quieter and smoother. If I only looked at the result in my mouth, I’d say I’m happy. But value for money is about what you get compared to cheaper options, and there the picture is more mixed.

Compared to a mid-range Oral-B with a pressure sensor and a basic timer, the iO9 does feel nicer and more polished, but the improvement is not massive. You’re paying a big extra for the colour screen, AI tracking, multiple modes, and the charging travel case. The problem is that in daily life, at least for me, these extras don’t change much. I barely use the app, I ignore most modes, and the travel case annoys me because of the charging design. So I’m basically using it like a slightly nicer version of a much cheaper brush.

If you’re someone who loves gadgets, likes tracking everything on an app, and doesn’t mind paying for the top model, you’ll probably be okay with the price. If you have gum issues or tend to press too hard, the pressure feedback and gentler motor are a real benefit. But if you just want good cleaning without fuss, a cheaper Oral-B iO series or even a non-iO model with a pressure sensor will likely give you most of what you need for a lot less money.

So my honest take: value is average. The product is good, but the price feels inflated, especially considering the outdated charging system and the cost of replacement heads. I don’t regret testing it, but if I had to buy again with my own money and no discount, I’d probably go for a lower iO model or a solid mid-range brush instead of paying full price for the iO9.

Design-wise, the iO9 looks good on the sink. The black handle with the little colour screen gives it a gadget feel, and the magnetic charger is neat. You just drop the handle on it and it snaps into place, no fiddling with pins. The finish feels solid, with a matte texture that doesn’t slip too much when wet. The brush head is the classic round Oral-B head, so if you’ve used their brushes before, you’ll be in familiar territory. The interface is simple: one button for power, one for changing modes, and the screen shows a countdown, a smiley at the end, and your selected mode.

Where the design falls flat for me is the charging system, especially the travel case. The travel case is bulky but protects the brush well and holds the handle plus two heads, which is practical. But to charge it, you need to plug in the same Oral-B two-pin charger you use at home into the case. So you’re carrying a big case and a separate charger, and if you leave the charger at home, the case is just dead weight. The angry Amazon review about this is honestly spot on: in 2026, having a premium brush without USB-C feels lazy and a bit disrespectful to users who travel.

Another point: the plug is a UK shaver plug. If you travel in Europe or elsewhere, you’ll need an adapter on top of that. So now for a weekend trip, you’re packing: the travel case, the Oral-B charger, and an adapter. For a product that markets itself on convenient travel charging, it misses the mark. A simple USB-C port on the case or the handle would have solved all of this. Instead, it feels like Oral-B is forcing you to stay in their ecosystem for no good reason.

So yes, the handle design is pretty solid and it looks nice in the bathroom, but the overall design thinking around charging and travel is clumsy. If you never travel or always drive and have space, you might not care. If you travel light or go abroad often, this part is just annoying and feels outdated for the price you’re paying.

Battery life on the iO9 is pretty solid. With two brushes a day, 2–3 minutes each, I got roughly 10–12 days before the battery icon got low. The screen and the ring give you a clear idea of the remaining charge, and it doesn’t suddenly die on you without warning. For everyday use at home, you can easily just drop it on the magnetic stand every few days and forget about it. The fast charger claims about 3 hours for a full charge, and in my tests it was around that, so no complaint there.

The real problem is not the battery itself, but how you charge it when you’re not at home. The travel case is advertised as a charging case, but it doesn’t have its own cable or any modern connector. You have to plug the standard Oral-B two-pin charger into the case. So if you forget the charger, the case is just a plastic box. This feels like a half-baked solution. When you see cheaper gadgets everywhere using USB-C, having to carry a proprietary shaver plug plus sometimes an adapter when you leave the UK feels backwards and honestly a bit greedy from the brand.

On a short trip of 3–4 days, you can probably get away with leaving the charger at home if you start with a full battery. But for anything longer, you’re forced to drag this whole setup with you. And because the travel case is quite big, it takes up a fair bit of space in a small bag. If you’re someone who travels with just a backpack or cabin luggage, you will notice it. I ended up taking just the bare handle wrapped in a cloth for one trip because I couldn’t be bothered with the full case and charger, which kind of defeats the point of buying the version with the charging case.

So: battery life itself is good, no real complaint there. But the charging ecosystem is clunky, proprietary, and not adapted to how people actually travel in 2026. If they had put a simple USB-C port on the case, I’d probably give this part a 5. As it stands, they lose points for stubbornly sticking to their old plug system.

In the mouth, the iO9 is actually quite comfortable. The oscillating-rotating motion feels more controlled than on my old cheaper Oral-B, and the noise is lower – more of a hum than a harsh buzzing. The brush head is medium firmness, and I never had gum pain or bleeding, even when I accidentally left it on the more powerful mode. The pressure sensor is a big part of that: the light ring changes colour and the handle vibrates differently if you press too hard, too soft, or just right. At first it’s a bit annoying to be told off by a toothbrush, but after a few days I found myself pressing less and letting the brush do the work.

The handle shape is decent. It’s not super thin, but the grip is stable, even when wet. I have average-sized hands and no problem holding it, but someone with very small hands might find it slightly chunky. The weight is noticeable compared with a manual brush, but for an electric brush it’s fine. During the two-minute cycle, I never felt hand fatigue or anything like that. The vibration in the hand is also less aggressive than some cheaper models I’ve tried, which makes the whole brushing experience a bit calmer.

One comfort detail I liked is the 30-second quadrant timer. It gives a short pause to tell you to move to the next area, and after 2 minutes you get a longer signal plus a smiley on the screen. It’s nothing new in the Oral-B world, but combined with the gentler motor, it does help you keep a steady rhythm without overdoing it in one spot. For someone who tends to rush brushing, this is useful. On the other hand, the number of modes is overkill; switching between seven modes with a tiny screen is not exactly user-friendly, and after the first week I just left it on the same mode and ignored the rest.

Overall, comfort is a strong point: it feels gentle, doesn’t trash your gums, and the feedback on pressure is actually helpful. Just be ready to ignore half the features if you don’t want to overthink brushing your teeth. The hardware comfort is good; the software and options feel a bit too busy for something you use half asleep in the morning.

In terms of build, the iO9 feels solid. The handle doesn’t creak, the buttons have a firm click, and the surface hasn’t scratched or faded after regular use in a damp bathroom. The magnetic charger also feels sturdy; the brush sits stable on it and doesn’t wobble. I’ve rinsed the handle under the tap many times and had no issues with water getting into the screen or buttons. So from a first impression point of view, materials and assembly seem decent for a premium product.

The brush heads click on and off firmly with no play. They’re the usual Oral-B iO specific heads, which is another thing to note: they are not the same as the classic Oral-B heads and they are more expensive. So over several years, the cost of replacement heads will add up. That’s part of the durability story too: the handle might last, but you’re locked into higher-priced consumables. If you’re on a budget or you have a big family all using Oral-B, this is something to think about.

I haven’t had it long enough to talk about multi-year durability, but looking at other Oral-B handles I’ve owned, the weak points are usually the battery after a few years and sometimes the rubber coating peeling. This model has less external rubber than some older ones, which might actually be a plus for long-term wear. The internal battery is not user-replaceable, so once it starts dying, you’ll likely end up replacing the whole handle. For a product at this price, that’s not great, but sadly it’s standard these days.

Overall, I’d say durability seems good but not exceptional, and the more expensive heads make long-term ownership pricier. If you take care of your stuff and don’t throw it around, I don’t see it falling apart quickly, but I also don’t get the feeling it’s built like a tank. It’s fine for daily bathroom use; just be aware the real long-term cost is in the heads, not just the handle.

Out of the box, the Oral-B iO9 package looks premium, but let’s talk about the concrete stuff you actually get. In this version I had: one handle, two brush heads, the magnetic charging base, a hard travel case that can charge the brush, and the usual paperwork. The listing also mentions an extra head, so depending on the offer you might get three heads total, but mine had two. The plug is the standard UK two-pin shaver plug, not a normal three-pin and definitely not USB-C. That detail matters a lot if you travel or don’t have a bathroom shaver socket.

The handle is slightly heavier than my older Oral-B, but still manageable. It has a small colour screen, a power button and a mode button. On first start-up, the brush walks you through a quick setup: choose language, choose an icon, that kind of thing. It’s cute once, then you never touch it again. The app pairing is optional; you can totally use the brush without opening the app, which is what I did after the first few days. It connects via Bluetooth if you want more stats and the AI position tracking.

In terms of modes, you get 7 brushing modes: daily clean, intense, sensitive, super sensitive, gum care, whitening, and tongue clean. In real life, I stick to two or three modes max – daily, sensitive, and sometimes whitening. The rest feel like padding to justify the high-end label. The handle vibrates every 30 seconds to tell you to change zone, and stops after 2 minutes by default, like other Oral-B brushes. So functionally, it’s not that different from mid-range models, just wrapped in more tech.

So overall, the package is pretty complete for someone starting from scratch, but for this price I would have liked at least one or two more brush heads, and most of all a more universal way of charging. Instead, you’re locked into the old Oral-B shaver plug world, including for the travel case, which for 2026 really feels out of touch.

Let’s talk about the main thing: does it clean better than a normal electric toothbrush? In my experience, yes, but not to the point where you suddenly have dentist-level teeth. Compared to my older basic Oral-B, my teeth feel smoother after brushing with the iO9, especially around the gumline and between teeth. The round head combined with the new motor gives a more polished feeling, and I noticed less plaque buildup on the back molars after about a week. Morning breath is still morning breath, but overall my mouth feels fresher for longer after brushing.

The pressure sensor and the AI guidance (when I bothered to open the app) do push you to brush more evenly. The app shows you zones you’ve missed, and that made me realise I was neglecting the inner surfaces of my lower teeth. After a few days I didn’t even need the app anymore because the habit was set. So from that angle, the smart features did have a short-term positive effect on my brushing technique. The claim about 100% more plaque removal than a manual brush is marketing talk, but I can believe it’s clearly better than manual and slightly better than cheaper electrics.

However, it’s important to be realistic: the difference compared to a mid-range Oral-B is not night and day. If your current electric brush is already decent and you use it properly for 2 minutes, twice a day, you’re not going to suddenly grow new teeth because of the iO9. The biggest gain I felt was in gum comfort and the feeling of a more even clean. For people with sensitive gums or who tend to press too hard, the iO9 is genuinely useful because it pushes you towards a lighter, safer brushing style.

So in terms of effectiveness, I’d say: yes, it cleans very well and I’m happy with the results. But the jump in performance doesn’t fully match the jump in price. If your budget is tight, a cheaper Oral-B with a pressure sensor will probably get you 80–90% of the result for much less money. The iO9 is more of a polished experience than a huge upgrade in raw cleaning power.