Oral-B

iO 3 Black Electric Toothbrush

Oral-B iO 3 Black Electric Toothbrush
Amazon$79
Prime Day Deal

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TL;DR: Exceptional clean, gentle, but mold-prone with pricey heads.

Overall

#4 in

Electric Toothbrushes

according to Reddit Icon Reddit

Sentiment score71% positive
58
8
16

Top Pros

Top Cons

Last updated: Jun 30, 2026

Reddit Reviews

Reddit Icon55hyam
about 1 month ago

Get io3 , brush heads are a bit on pricier side bt definitely very reliable

Reddit IconaCuria
12 days ago

We have both. Durability seems the same, io3 has very little rubber so no mould. Brush replacement is the same (3 months)

Reddit IconAdmirable-Strike-311
4 months ago

I usually recommend the Philips Sonicare or Oral B iO 3. I think the iO 3 hits a sweet spot of features, price, and performance.

4 months ago

The traditional Oral B electric toothbrushes just had an oscillating head. The iO series features “micro vibration” in the head sorta like Sonicare. I have it from first person reports from someone that has used the old Oral B vs the new iO brush that the iO brush is way better and cleans much better. So yes, iO is noticeably better.

5 months ago

Phillips Sonicare and the Oral B iO3 are two I recommend. The really expensive ones with Bluetooth that can track your brushing on an app really are not necessary. Using an electric toothbrush requires a different technique than a manual toothbrush so make sure you read the instructions and watch any videos the manufacturer has on how to best use it. Stay away from the ones that use AA batteries.

Reddit IconAdnamaHou
6 months ago

Oral B! The round brush head really makes a difference because it kind of cups your tooth. You need to move it like you’re polishing each tooth. I have gum issues and was using a lower model Oral B for a while that was doing ok but I didn’t like how loud it was and it felt like the battery was giving out. Decided to try Sonicare - I liked the brush itself but after 2 months I had a dentist appt and my gums had gotten worse. The hygienist was like “why did you do that” lol. So, I got an Oral B iO Series 3 and I love it. I know it’s doing a better job, and I’m looking forward to my next appt.

Reddit IconBlackCatFurry
4 months ago

I have an oral b io5 series brush. It's quiet and has a sensitive mode but still cleans really well. Although they are a bit on the expensive side so it might not fit into your budget at all. The io3 series might fit in to your budget if you can find it on sale and in terms of brushing performance is just as good.

Reddit IconBorn-Living4998
4 months ago

I bought an Oral B io3 from Boots. Very impressed and a huge upgrade from my Oral B Pro brush. Teeth feel much cleaner already. Thanks all for the replies.

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4
Oral-B iO 3 Black Electric Toothbrush

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iO 3 Black Electric Toothbrush

71% positive of 83 users

Exceptional clean, gentle, but mold-prone with pricey heads.

$79 Amazon
Prime Day Deal
5
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Rankings by Use Case

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