Price observed . Amazon shows the live price.
Amazon lists it at $99.99, 20% off. That figure is Amazon's, not a price we have recorded.
Oral-B iO Series 4 Electric Toothbrush with (1) Brush Head
Oral-B iO Series 4 Electric Toothbrush with (1) Brush Head, Rechargeable, White
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The Oral-B iO Series 4 Electric Toothbrush with (1) Brush Head was $79.99 when we checked it on 2026-10-12. That is about 11 percent below the median of the 6 prices we have recorded for it. Best for: People who want the iO's magnetic drive and pressure light without paying for the display.
The iO is Oral-B's best technology: Clinically Proven 500% More Plaque Removal Along Gumline versus a manual toothbrush. The i04 coaches you to a perfect clean. This is real time personalized coaching. The accompanying App shows your daily brushing report. Having 4 Brush Modes (Daily Clean, Whiten, Sensitive, and Super Sensitive) Oral-B is on your team for your everyday brushing task. A Round head and gentle micro-vibrations, the Magnetic interaction delivers smooth, harmonious motion through a Synchronized cleaning action (micro-vibrations synced with oscillations). A Built-in-2-Minute Timer ensures an even easier experience, helping you get an optimal clean on all your teeth. The Oral-B's quadrant timer breaks the two minutes up into four 30-second intervals to clean each quadrant of you
Why we picked it
Best for: People who want the iO's magnetic drive and pressure light without paying for the display.
500% more plaque removal along the gumline than a manual brush, clinically proven, at the entry point to Oral-B's iO line.
What we like
- + Magnetic drive removes 500% more plaque along the gumline than manual, per Oral-B
- + Pressure light plus 4 cleaning modes, more coaching than the budget pick
- + Round head design reaches spots a flat manual brush misses
- + Lithium-ion battery holds a charge longer than older oscillating brushes
Watch outs
- - Replacement heads cost more than Sonicare's, the real long-term price
- - No onboard display, just a light ring for feedback
- - App is optional and most owners stop opening it after week one
Oral-B iO Series 4 Electric Toothbrush with (1) Brush Head price history
6 weekly checks of our own, from 2026-08-18 to 2026-10-12. How our price tracking works
Lowest
$79.99
Oct 5, 2026
Typical
$89.99
median of 6 weekly checks
Highest
$99.99
Sep 21, 2026
Latest
$79.99
checked Oct 12, 2026
Typical price is the median of the 6 weekly checks we have taken, not the manufacturer list price. Every discount figure on this site is measured against it.
Every observation (6)
| Date | Price | Source |
|---|---|---|
| Aug 18, 2026 | $89.99 | Weekly check |
| Aug 24, 2026 | $89.99 | Weekly check |
| Sep 21, 2026 | $99.99 | Weekly check |
| Oct 1, 2026 | $99.99 | Weekly check |
| Oct 5, 2026 | $79.99 | Weekly check |
| Oct 12, 2026 | $79.99 | Weekly check |
About this item
- FOR HEALTHIER GUMS IN JUST 1 WEEK remove 100% more plaque and even 2.5X in between teeth* with ORAL-B MOST ADVANCED TECHNOLOGY *vs a manual brush
- TRACK AND IMPROVE YOUR BRUSHING HABITS over time with ORAL-B APP through performance reports, journeys, and goals
- PROTECT YOUR GUMS WITH iO PRESSURE SENSOR, Oral-B's only one to signal if you are applying the PERFECT PRESSURE for an effective and safe clean
- PERSONALIZE YOUR BRUSHING choosing among 4 CLEANING MODES: Daily Clean, Sensitive, Super-Sensitive, Whitening
- Always MAXIMIZE YOUR CLEAN with iO LIGHTRING TIMER -that celebrates a dentist recommended 2-minute brush- and REFILL CHANGE ALERT
- Oral-B ROUND brush heads REACH WHERE RECTANGULAR manual brushes DON'T. Experience our BEST CLEAN from Oral-B, #1 brand most used by dentists worldwide
- Benefit from a LONG-LASTING CHARGE with the Lithium-ion battery
Details
- Product Dimensions
- 2.87 x 0.13 x 6.22 inches; 1.1 pounds
- Item model number
- Model iO G4.1A6.1K
- Brand Name
- Oral-B
- Model Name
- series 4
- Model Number
- Model iO G4.1A6.1K
Oral-B iO Series 4 Electric Toothbrush with (1) Brush Head: common questions
Is the Oral-B iO Series 4 Electric Toothbrush with (1) Brush Head worth it?
500% more plaque removal along the gumline than a manual brush, clinically proven, at the entry point to Oral-B's iO line. Its Amazon listing shows 4.3 out of 5 stars across 2,476 ratings, which is the retailer's figure and not our verdict.
How much does the Oral-B iO Series 4 Electric Toothbrush with (1) Brush Head cost?
The Oral-B iO Series 4 Electric Toothbrush with (1) Brush Head was $79.99 when we checked it on 2026-10-12. The median of the 6 prices we have recorded for it is $89.99. Amazon lists it at $99.99, a price we have never recorded ourselves. Prices change often, so the live retailer link carries the current number.
Is now a good time to buy the Oral-B iO Series 4 Electric Toothbrush with (1) Brush Head?
At $79.99 the Oral-B iO Series 4 Electric Toothbrush with (1) Brush Head is back at the lowest price on our record, which we also recorded on 2026-10-05, across 6 weekly checks since 2026-08-18.
What is the lowest price the Oral-B iO Series 4 Electric Toothbrush with (1) Brush Head has been?
The lowest price on our record for the Oral-B iO Series 4 Electric Toothbrush with (1) Brush Head is $79.99 on 2026-10-05, and the highest is $99.99 on 2026-09-21. That record is 6 weekly checks we took ourselves.
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$79.99 observed
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