Skip to contentGo to Product SearchGo to Footer
Main Content

Customer Ratings & Reviews

No content
  • Oral-B iO SERIES 4 CLINICALLY PROVEN 500% MORE plaque removal along the gumline* vs. a regular manual toothbrush
  • Oral-B iO SERIES 4 BLUETOOTH CONNECTED RECHARGEABLE TOOTHBRUSH OPTIMAL PRESSURE CONTROL 4 SMART MODES iO ULTIMATE CLEAN BRUSH HEAD ORAL-B APP FOR BRUSHING TRACKING INSIDE HANDLE, CHARGER, TRAVEL CASE, BRUSH HEAD CLINICALLY PROVEN 500% MORE PLAQUE REMOVAL ALONG THE GUMLINE*
  • Protect your gums Perfect Pressure
  • Smart features to maximize your clean - 4 Cleaning Modes - 2-Min Lightring timer - Post-brushing reports - Brush head change alert
  • 30 DAY MONEY-BACK GUARANTEE
  • Choose the right brush for you iO8 iO6 iO4 Gum Pressure Sensor 3 intensities 3 intensities 3 intensities Cleaning mode Brushing feedback Real-time (through A.I.) Real-time (through A.I.) Post-brushing reports Display Colored Black and white Travel Case 3h Fast Charging
  • Remove 100% more plaque in 1 week* with Oral-B's most advanced technology *vs a manual toothbrush
  • Track and improve your brushing habits with Oral-B's App Post-brushing reports Wow! Keep it up! 2:00 5s 0 Tongue Focused on your teeth and gums

Oral-B - iO Series 4 Rechargeable Electric Toothbrush w/Brush Head - Black

Model:
iO4 Black
SKU:
6508660
Highly rated by customers for:
Your price for this item is $99.99

Customer reviews

Rating 4.5 out of 5 stars with 118 reviews

Rating Filter

Rating by feature

  • Value

    Rating 4.5 out of 5 stars

  • Quality

    Rating 4.6 out of 5 stars

  • Ease of Use

    Rating 4.6 out of 5 stars

Pros mentioned filter

Cons mentioned filter

There aren't enough negative mentions yet.
88%would recommend to a friend

Customers are saying

Customers are impressed with the iO Series 4 Rechargeable Electric Toothbrush, particularly its cleaning performance and ease of use. Many appreciate the long-lasting battery, attractive design, and helpful pressure sensor. Users also find the toothbrush to be lightweight and value the built-in timer, noting improvements in gum health and the power it delivers, especially considering the price.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 4 Showing 61-80 of 118 reviews
  • Pros mentioned:
    Cleaning performance

    So Fresh

    |
    |
    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    My mouth feels so fresh. My teeth feel so clean, I can feel the difference with this tooth brush.

    I would recommend this to a friend

  • Great Toothbrush

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This is an excellent toothbrush. I upgraded from an older Oral B and am very happy.

    This review is from Oral-B - iO Series 4 Rechargeable Electric Toothbrush w/Brush Head - White

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    My new toothbrush

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great product. Easy to use and does a great job of cleaning my teeth

    This review is from Oral-B - iO Series 4 Rechargeable Electric Toothbrush w/Brush Head - White

    I would recommend this to a friend

  • Good quality brush

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works well. Always plugged in to keep charged. Has a travel case.

    This review is from Oral-B - iO Series 4 Rechargeable Electric Toothbrush w/Brush Head - Icy Blue

    I would recommend this to a friend
  • Pros mentioned:
    Cleaning performance

    Oral-B io tooth brush

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The Oral B is electric toothbrush is amazing. It cleans your teeth like you just went to your dentist.

    This review is from Oral-B - iO Series 4 Rechargeable Electric Toothbrush w/Brush Head - Icy Blue

    I would recommend this to a friend

  • Good entry io brush

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great value for oral b IO product with Bluetooth connectivity.

    I would recommend this to a friend
  • Pros mentioned:
    Cleaning performance

    Awesome Toothbrush

    |
    |
    Posted . Owned for 3 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Awesome electric tooth brush. Leaves teeth feeling like you just walked out of the dentist.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Awesome!

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Very easy ti use and great feeling after brushing!

    This review is from Oral-B - iO Series 4 Rechargeable Electric Toothbrush w/Brush Head - Icy Blue

    I would recommend this to a friend

  • Great toothbrush

    |
    |
    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great price and quality. Light in weight and has different motions. I love it so far.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life

    Squeaky clean

    |
    |
    Posted . Owned for 5 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works well, long lasting charge. Various interchangeable heads

    I would recommend this to a friend

  • Good purchase

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Very reasonably priced. It was a gift and he loved it.

    This review is from Oral-B - iO Series 4 Rechargeable Electric Toothbrush w/Brush Head - Icy Blue

    I would recommend this to a friend

  • SMILING thanks to this toothbrush!

    |
    |
    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great!! Teeth feel dentist clean and the pressure guide light is beneficial so i know to backoff!

    This review is from Oral-B - iO Series 4 Rechargeable Electric Toothbrush w/Brush Head - Icy Blue

    I would recommend this to a friend

  • Great toothbrush

    |
    |
    Posted . Owned for 1 year when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great toothbrush. My wife loves it and uses it every day

    This review is from Oral-B - iO Series 4 Rechargeable Electric Toothbrush w/Brush Head - Icy Blue

    I would recommend this to a friend

  • Very good

    |
    |
    Posted . Owned for less than 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This was a gift for my girlfriend. She loves it! Works great!

    This review is from Oral-B - iO Series 4 Rechargeable Electric Toothbrush w/Brush Head - Icy Blue

    I would recommend this to a friend

  • Buy it

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This brush is a game changer. I had a oral-b spin brush before this and wasn’t getting the level of clean I wanted. After one week of using this, I noticed my teeth felt cleaner and my breath was fresher

    I would recommend this to a friend

  • Great toothbrush!

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Wasn’t sure how I was going to like the Bluetooth feature and the app but I found that it’s a really nice feature to have and I love that you can so easily customize the settings to your preference.

    I would recommend this to a friend

  • Fantastic brush

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Excellent product I recommend this to anyone who can’t afford the really expensive electric toothbrushe

    This review is from Oral-B - iO Series 4 Rechargeable Electric Toothbrush w/Brush Head - Icy Blue

    I would recommend this to a friend

  • Great product!

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Love it!!!!! I would buy this again and again. I have had a toothbrush for a long time, but this one is really nice.

    This review is from Oral-B - iO Series 4 Rechargeable Electric Toothbrush w/Brush Head - Icy Blue

    I would recommend this to a friend

  • Great product

    |
    |
    Posted . Owned for 9 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Best toothbrushes out there! It’s great that you can track the life of the brush and it tells you when to replace it.

    This review is from Oral-B - iO Series 4 Rechargeable Electric Toothbrush w/Brush Head - Icy Blue

    I would recommend this to a friend

  • Clean teeth

    |
    |
    Posted . Owned for 5 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Bought this for my son for Christmas as he travels a lot. He loves the toothbrush. It works great and has a cool case to travel with.

    I would recommend this to a friend
Page 4, Showing 61-80 of 118 reviews
Sign in or Create Account

Get the latest deals and more.

Best Buy appLearn more
Share on YouTubeShare on InstagramShare on TikTokShare on FacebookShare on PinterestShare on X
Best Buy Canada
AccessibilityTerms & ConditionsPrivacyInterest-Based AdsState Privacy RightsHealth Data PrivacyDo Not Sell/Share My Personal InformationLimit Use of My Sensitive Personal InformationTargeted Advertising Opt OutCA Supply Chain Transparency Act
In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.