Oral-B

iO Series 9

Oral-B iO Series 9

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Overall

#21 in

Electric Toothbrushes

according to Reddit Icon Reddit

Sentiment score55% positive
16
4
9

Top Pros

Top Cons

Last updated: Aug 29, 2026

Reddit Reviews

Reddit IconAdorable-Minute-1048
6 months ago

I can advocate that they are crap for teeth hygiene! I had one for about a year and had so many issues. I've switched back to oral b io9

6 months ago

Another down vote on Suri. Endless issues since i switched and just switched back to the oral b io9

Reddit IconEasy_Appointment9113
10 months ago

Oral B...specifically Oral B iO (have the series 9–goes to series 10). Cosmetic dentist recommended a basic model but I told him I'd been using the expensive Series 9 iO for 2 years.

Reddit Iconflgtmtft
12 months ago

Ja osobiście używaj io9 od 3 lat i jest to jeden z najlepszych zakupów w moim życiu. Czyści tak dobrze że przestałem myć zęby 2 razy dziennie i nie widzę żadnych problemów, ale pomaga też fakt że nie jem w ogóle słodyczy

Reddit IconGreat_Arrival_3839
3 months ago

I had the oral b io9, it lasted about 6 months and died - it was replaced under warranty and that one lasted about 9 months and died. So I asked for a refund and bought the Sonicare prestige and so far so good two years later, both brushes are very good.

Reddit Icongruelsandwich
10 months ago

Tannlegen min anbefalte også elektrisk tannbørste, men det burde være av den dyrere sorten. Oral-B iO 9 eller høyere. Dyr som fan, men definitivt en oppgradering fra de som koster 200 kr på tilbud

Reddit IconJakeCMMA
5 months ago

I’d be interested to hear a dentists perspective on Suri toothbrushes if you know anything about them? I bought mine because I needed an affordable new electric toothbrush after my very expensive Oral-B (I think it was probably the equivalent of an iO9 at the time) died after 10+ years. It’s sonic, has a good warranty/replacement policy, lasts far longer after a charge than my oral b ever did and seems to be a sustainable manufacturer. However my teeth feel nowhere near as clean as they did with the oral b and my brushing routine is far more strict now. Before, if I forgot or didn’t have time to floss on a morning my mouth would still feel clean with just brushing. Now if I don’t floss, tongue scrape, mouthwash, brush in that order every single morning and night my mouth feels disgusting and I feel plaque build up within a couple of hours. I know in an ideal world I should do that routine every time anyway and most of the time I did, it just seems since I switched toothbrushes I can’t risk an occasion where I forget or don’t have time

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