5.0 out of 5 stars High-tech brushing that actually makes a difference

C. · 14 April 2025

I didn’t think a toothbrush could feel luxurious—but here we are. The Oral-B iO9 is seriously impressive. The brushing experience is smooth, powerful, and feels like a full-on dentist clean every time.The pressure sensor is a lifesaver (no more aggressive scrubbing), and the app makes it kind of fun to keep track of your brushing habits. The real-time feedback sounds gimmicky but actually helps improve technique.Battery life is great, the charging stand looks sleek, and the travel case is a nice bonus. Is it expensive? Yes. Is it worth it? If you care about your teeth and love gadgets—absolutely.

5.0 out of 5 stars Genuine "Wow!" coming from a longtime DiamondClean user

N.M. · 6 January 2023

I've been a longtime Sonicare DiamondClean user, having purchased two of them (after the first one broke); I bought my first one in 2011 for £250 when they first came out and then its replacement for £97 in 2016 (having just checked my Bolo purchases!), and lots of replacement brush heads since then.The DiamondClean is an excellent toothbrush, and I'm not adverse to spending good money on occasion with devices that help keep your teeth in good condition.. it's a lot cheaper than dental work!I noticed about a year ago that I was getting coffee staines on the bottom of my eyeteeth and despite my best efforts with a new toothbrush head for my Sonicare, I couldn't get rid of them and had to get a charcoal-based stain remover stick that fortunately worked. But I realised at this point that I was skipping my routine with the Sonicare. My preference has always been scrubbing my teeth like a traditional toothbrush which is what you do with Sonicare.. it's like manual brushing on steroids. But it was clear that I wasn't concentrating on brushing.One thing I didn't like about the Sonicare was they stopped making the smaller brush heads that I preferred. You can now buy knockoff versions but they're just not as good, so I was forced to buy the standard/bigger brush heads, which never felt as good for me.So about a year ago I had a look for Oral-B and thought it wouldn't hurt to get one of the cheaper models to see if it would help with the staining and of course they have smaller brush heads... I couldn't believe how sore my gums were, particularly around the top corners after the first use with the Oral-B, which was a clear indication that I wasn't cleaning effectively with the Sonicare, so I started to alternate between the Sonicare and cheap Oral-B.Fast forward a year and I saw the iO 9 was on one of its frequent half-price offers (why Oral-B does this in Europe is beyond me as their US prices are kept much lower without the near constant offers) and I decided to go ahead and see if the Sonicare-like vibrations would make much of a difference....I've used it twice and I know it's a cliche but it really does feel like I just left the dentist..And once again I have sore points where its clearly hitting points neither of my Sonicare or cheap Oral-B go to. One interesting thing I've noticed is that I don't need to rinse my mouth out with water. It seems to be so effective in using up the toothpaste, there's no residue to rinse out. I just use mouthwash after a minute instead.I haven't tried the app with bluetooth yet but I'm blown away just how effective this toothbrush is. The heads also seems to be a little cheaper than Sonicare, too.One word of warning though.. you'd be insane to pay the circa £500 full retail price this device, hence why they're often on 50% or more sales prices. You should also check the comparison matrix to see what features you need as the iO6, 7, 8, 9 & 10 all offer the same basic 'micro-vibration' cleaning and I don't see the 9 or 10 being any better in its core cleaning function in this regard. The day after I purchased this, it went back to full price and the lower models went on discount. Had I of known that, I might have gone with a cheaper model, but overall I'm very happy with it.One slight disappointment is the travel case.. this uses its own proprietary lead whereas the Sonicare has a USB-based travel charging case, so you need to take a separate cable along with the case for the Oral-B unfortunately. It looks like they've improved the iO 10 with a battery-based travel case but it currently sells for a crazy £800 price upon checking at the time of writing, and the brush functions appear to be the same as the iO 9.

4.0 out of 5 stars Bit misleading but amazing product

C. · 10 September 2025

4 stars because I did think you got the charging case with it but at least it came with the travel pouch. A bit misleading but it was on sale.Great toothbrush though upgraded from the oral b sort of “standard” electric toothbrush. I completely understand the price. This and a water flosser will have you feeling like you are just back from the dentist in a strangely good way

5.0 out of 5 stars Very expensive

A.G. · 29 January 2025

Best toothbrush that I had so far but the price is far beyond limits. Don’t know was the difference between IO9 and IO10. I paid 250£ on mine in December.At least at this price you expecting a spare head for this but hey nothing extra. Oral B. You decide if you want to paid the price.

5.0 out of 5 stars At the biting edge of technology

R.R. · 22 October 2024

The most difficult part of this purchase was finding out what was included. The Bolo website featured a image of a charging lead with a 13 amp plug top! On receipt, it had a conventional two pin connection and a travel charge lead. This is my first foray into the io range of electric toothbrushes and, compared to my existing Oral b brush, the brush heads are huge. The io 9 toothbrush itself is very similar in size to my old one and fits nicely inside the bathroom cabinet. I like the magnetic charge pod which charged from 50% to 100% in around an hour. Connection to my iPhone by Bluetooth was easy, but I have decided that taking the phone into the bathroom every time I brush my teeth is a step too far.. In use, the power of the toothbrush is evident and my teeth felt extremely clean afterwards. I have enjoyed using the brush for the past few days and I am confident this will prove to be a wise purchase.

5.0 out of 5 stars Simply the Best

N. · 3 September 2025

Best toothbrush I've ever used.

5.0 out of 5 stars A steep learning curve, stylish e-toothbrush.

K.M. · 17 January 2025

As soon as charged, I set about preparing (downloading and registering) the oral-b io 9 app to my Tablet. Then looked at a few videos to get the basics right.Old manual Toothbrush put aside, I began practicing what I had learnt from the videos. The graphical images on my Tablet were a bit difficult to follow, as I also needed to glance in a mirror too. Forget Old school manual brushes -the e-brush (my first) cleans my teeth/tongue 100% better than my other brush.What an amazing improvement to my dental care -Smiles all round.The battery life, seems to be going down quite fast (IMO) but I'm sure, with practice, I will get nearer the 2 minutes recommended time.Finally, the travel case is quite stylish, with its magnetic inner pocket (the soft case I mean) using the harder case for trips out of town.

1.0 out of 5 stars Supremely low battery quality

P.G. · 1 June 2025

I don't write reviews often, but I feel obliged to write this one: this is probably the worst battery that I've ever had in a product. I am now on brush number 3, the previous 2 having been replaced under warranty. All 3 have had the same defect. It takes about 5-7 weeks for the brush to start switching off at around 35% battery life. How is it possible to get such an important component wrong in a premium product is beyond me.