Refund Refresh 4-Day SaleEnds Monday. Limited quantities. No rainchecks.Shop now

Skip to contentGo to Product Search
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
$90.99
Save $9
Comp. Value: $99.99

Customer reviews

Rating 4.5 out of 5 stars with 121 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

88%would recommend to a friend

Customers are saying

Customers praise the iO Series 4 Rechargeable Electric Toothbrush for its exceptional cleaning performance and ease of use. Many appreciate the long-lasting rechargeable battery and attractive design. Features like the pressure sensor and timer are also well-received, along with its lightweight feel.

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 6 Showing 101-120 of 121 reviews

  • new toothbrush.

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

    This sonic vibration is really weird. Have no feeling it is actually brushing. just vibrates my teeth, very uncomfortable.

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

    No, I would not recommend this to a friend

  • Perfect toothbrush!

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

    Absolutely love it. Not over complex with bunch of bells and whistles.

    I would recommend this to a friend

  • Lost ability to keep a charge within 4 months

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

    This is the second Oral B electric toothbrush I've purchased within 2 years that completely loses its ability to charge.

    No, I would not recommend this to a friend

  • Great

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

    Excellent great bye for the money and it works satisfactory

    I would recommend this to a friend

  • Expensive and works like old generation

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

    For the price need to be very good not same as the old generation, guys if you have old generation just keep it don't spend your money for that

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

    No, I would not recommend this to a friend

  • Only worked for 4 months, now it won’t charge

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

    I bought this in May of 2024 and it stopped working September 2024. It will no longer charge

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

    No, I would not recommend this to a friend

  • So far so good! Great electric toothbrush!

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

    Great toothbrush. Only been using it couple weeks but teeth seem cleaner already. Really the only negative comment is that the Bluetooth connection from the app to the brush is very intermittent and does not connect most of the time. I'll likely have to setup again to resolve this.

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

    I would recommend this to a friend

  • Terrible battery life span, unacceptable for price

    |
    |
    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It worked okay until battery stopped holding charge after only 6 months of actual usage

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

    No, I would not recommend this to a friend

  • brush away

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

    perfect for my wife who doesn't want the top of the line electric toothbrush. She loves this one

    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 buy

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

    Overall a good buy. Works as advertised. Would be better if we could change mode directly without app

    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.

    Got this for my daughter and she says it’s great. Got it for a great price too.

    I would recommend this to a friend

  • Worth it

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

    Great Value, Recommend for anyone who needs a good electric toothbrush.

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

    I would recommend this to a friend

  • Really dissappointing

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

    I had the other version which is even way cheaper and decided to upgrade to this one thinking it would better. I was wrong , i suggest stick with the other version

    No, I would not recommend this to a friend
  • Pros mentioned:
    Cleaning performance, Ease of use

    Great brush.

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

    Great brush. Easy to use, easy to wash. Definitely recommend.

    I would recommend this to a friend

  • Oral electric tooth brush

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

    Great Tooth brush. Love it. Might get some for my grand kids.

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

    Great toothbrush. Really liked the power it had. Can never go wrong with this brand!

    I would recommend this to a friend
  • Pros mentioned:
    Design

    Best tooth brush

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

    This was a Fantastic move from the typical rectangle style tooth brush. Leaves your mouth wanting more.

    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:
    Ease of use

    Joe

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

    Very practical easy too use ver light powerful and nice recommend

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

    I would recommend this to a friend

  • Battery sucks

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

    Battery sucks I only get two uses before it dies and I have to charge it again

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

    No, I would not recommend this to a friend

  • Best brush!!

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

    Excelent, I suffer from periodontitis and this has worked wonders

    I would recommend this to a friend
Page 6, Showing 101-120 of 121 reviews
Sponsored

People also viewed

  • Oral-B - Pro 1000 Electric Toothbrush - White
    $49.99
  • Oral-B - iO2 Rechargeable Electric Toothbrush Kit Starter Kit - Night Black
    $61.46
    $64.99
  • Philips Sonicare - ProtectiveClean 6100 Rechargeable Toothbrush - Navy Blue
    $119.99
    $129.99
  • Oral-B - iO Series 3 Electric Toothbrush with (1) Brush Head - White
    $89.99
  • Oral-B - Smart 1500 Electric Power Rechargeable Battery Toothbrush, Blue
    $102.99