Best Oral-B iO Electric Toothbrush: Which iO Series Is Right for You?

10 minute read

Last updated 08/2026 Share

Approved and reviewed by Dr. Gans, a dental professional of over 10 years.

Contents
What Is Oral-B iO?
Which Oral-B iO Is Right for You?
New to Electric Toothbrushes? Start Here with iO2 or iO3
Looking to Upgrade or Maximize Your Oral Care?
Oral-B iO Comparison Chart: Features, Modes, App Coaching, and Price
Final Verdict: The Right Oral-B iO for You
FAQs: Choosing an Oral-B iO
Sources

Key Takeaways

New to iO or upgrading from a manual toothbrush (approx. $65–90): Choose iO2 for a gentle daily clean; step up to iO3 or iO4 for a complete clean for sensitive teeth and gum health with a Visible Pressure Sensor.

Ready to personalize your brushing routine (approx. $120–220): Choose iO5 for a whitening-focused bundle and Intense Clean mode; choose iO6 or iO7 for plaque removal and gum protection with a dedicated Gum Care mode and an interactive display.

Want the most advanced iO experience (approx. $330–400): Choose iO9 or iO10 for our signature oral care toothbrush, powered by Oral-B’s most advanced technology with 7 brushing modes, a Color Display, Smart Adapt Mode, and personalized coaching.

Oral-B is the #1 brand recommended and used by dentists worldwide.

Prices are approximate and may vary by retailer, promotion, bundle, and availability.

What Is Oral-B iO?

Launched in 2020, Oral-B iO is Oral-B’s electric toothbrush line that combines Oral-B’s dentist-inspired round brush head, oscillating-rotating technology, and gentle micro-vibrations for a smooth, powerful clean.

The Oral-B iO lineup compared in this guide includes eight models — iO Series 2, iO3, iO4, iO5, iO6, iO7, iO9, and iO10 — ranging from $65–400 (prices may vary by retailer).

Oral-B iO models are designed for different brushing needs and budgets, from simple everyday cleaning to app-connected coaching and advanced brushing feedback. All Oral-B iO models use Oral-B iO brush heads and include pressure guidance to help protect against brushing too hard.

Across the lineup, Oral-B iO removes 100% more plaque and delivers 100% healthier gums in 1 week versus a regular manual toothbrush.¹

Oral-B iO Key Facts

Approximate price range: $65–$400
Cleaning technology: Dentist-inspired round brush head, oscillating-rotating technology, and gentle micro-vibrations
Plaque and gum-health benefit: Removes 100% more plaque and delivers 100% healthier gums in 1 week versus a regular manual toothbrush¹
Pressure guidance: iO Series 2 has an automatic pressure sensor that signals when too much pressure is applied and slows the brush; iO Series 3 and above add Oral-B’s Visible Pressure Sensor with a full 360-degree ring
App connectivity: Starts at iO Series 5
Interactive display: Starts at iO Series 6
Smart Adapt Mode: iO Series 9 and iO Series 10 only
Brush head compatibility: All Oral-B iO brush heads work with all Oral-B iO handles

Which Oral-B iO Is Right for You?

Choosing the right Oral-B iO comes down to what you want your electric toothbrush to help with most: a simple transition from manual brushing, extra support for sensitive teeth, app-connected coaching, gum care, whitening, or the most advanced brushing feedback.

New to electric brushing or switching from a manual toothbrush?

Start with iO2, iO3 or iO4. These models give you Oral-B iO’s dentist-inspired round brush head, gentle micro-vibrations, and pressure guidance for a gentle but effective clean.

Want to upgrade your routine or more personalized brushing support?

Step up to iO5, iO6, iO7, iO9, or iO10. These models add features such as app-connected coaching, more brushing modes, interactive displays, Position Detection technology, Smart Adapt Mode, and premium accessories, depending on the model.

Oral-B iO Lineup: Best Model by Need and Price

Model	Recommended for:	Approx. pricing
Oral-B iO Series 2	A gentle clean for daily care	~$65
Oral-B iO Series 3 / iO series 4	A complete clean for sensitive teeth and healthy gums	~$90 - $100
Oral-B iO Series 5	A deeper clean for a brighter smile	~$120
Oral-B iO Series 6 / iO Series 7	A more guided clean for plaque removal and gum care	~$160 - $220
Oral-B iO Series 9 / iO Series 10	Our signature oral care toothbrush, powered by Oral-B’s most advanced technology	~$330 - $400

Prices are approximate and may vary by retailer, promotion, bundle, and availability. Feature availability may vary by retailer bundle.

New to Electric Toothbrushes? Start Here with iO2 or iO3

Oral-B iO removes 100% more plaque and delivers 100% healthier gums in 1 week versus a regular manual toothbrush. All iO models share Oral-B’s foundational cleaning technology: a dentist-inspired round brush head, gentle micro-vibrations, and pressure guidance that helps protect against brushing too hard.

Oral-B iO Series 2 has an automatic pressure sensor that signals when too much pressure is applied and slows the brush, while iO Series 3 and above include Oral-B’s Visible Pressure Sensor, which lights up green when you’re using the right amount of pressure, red when you’re brushing too hard, and also slows the brush when too much pressure is applied.

A gentle clean for daily care - The iO Series 2 is the most affordable Oral-B iO and is designed to make switching from a manual toothbrush feel simple.

It offers a one-button brushing experience with three modes — Daily Clean, Sensitive, and Super Sensitive — and starts on Super Sensitive by default to help ease the transition to electric brushing. It also includes an automatic pressure sensor to help reduce brushing too hard.

Choose the iO2 if:

You're new to electric brushing and want a straightforward brushing experience
You want Oral-B iO's round brush head and gentle micro-vibration cleaning at the lowest price

Oral-B iO Series 2 (~$65): 3 cleaning modes — Daily Clean, Sensitive, and Super Sensitive

Shop the Oral-B iO2 →

Oral-B iO Series 3 or iO Series 4 — ~$90–100

A complete clean for sensitive teeth and healthy gums

The iO Series 3 or 4 are a good choice if you want more brushing-pressure guidance than iO2, plus a Whitening mode.

Both feature the Visible Pressure Sensor, which gives you real-time feedback to show when you’re brushing too hard, too softly, or with the right amount of pressure, and celebrates when you reach the dentist-recommended 2-minute mark.

iO Series 3 (~$90): 3 cleaning modes — Daily Clean, Sensitive, and Whitening — with the Visible Pressure Sensor.

iO Series 4 (~$100): 4 cleaning modes — Daily Clean, Sensitive, Super Sensitive, and Whitening — with a Visible Pressure Sensor and a hard travel case.

Choose the iO3 if: You want Whitening mode plus iO technology at a sub-$100 price and don’t need Super Sensitive mode or a travel case.

Choose the iO4 if: You want two levels of gentle care, or you travel and want a hard case included.

→ Deep-dive: Best Under $100

Shop the Oral-B iO3 → | Shop the Oral-B iO4 →

Looking to Upgrade or Maximize Your Oral Care?

Oral-B iO Series 5, iO6, iO7, iO9, and iO10 add app-connected coaching, more brushing modes, interactive displays, and premium accessories on top of Oral-B’s core iO cleaning technology.

These models are designed for people who want more personalized brushing support, including:

App-powered tracking to see exactly where you’re brushing
Real-time coaching to improve your technique over time
New brushing modes: Intense Clean (starts at iO5), Gum Care (starts at iO6), Tongue Clean (iO9 and iO10)
Smart Adapt Mode on iO Series 9 and iO Series 10 for personalized brushing feedback

The oral-health benefit comes from the toothbrush; the Oral-B app adds guidance to help you build better brushing habits over time. App-connected models can help you track your routine, monitor brushing coverage, and make your brushing more consistent.

Oral-B power toothbrush users who switched to an app-connected Oral-B toothbrush saw a 73% reduction in overall plaque — and 74% in the hard-to-reach back molars — in just 2 weeks.*

The oral-health benefit comes from the toothbrush; the Oral-B app simply helps you brush more effectively. You’ll also get up to 94% average coverage across your mouth with Oral-B Position Detection,⁴ which tracks the time you spend brushing across every zone of your mouth to help you avoid missing areas.

Oral-B iO Series 5 — ~$120

A deeper clean for a brighter smile

The iO Series 5 is a good choice if you want your first app-connected Oral-B iO experience. It includes five brushing modes — Daily Clean, Sensitive, Super Sensitive, Whitening, and Intense Clean — the first iO to include Intense Clean mode, plus Bluetooth connectivity to the Oral-B app for brushing support, routine tracking, and more personalized coaching.

iO5 is often bundled with a Whitening brush head designed to help polish away surface stains. Two modes ladder up to a brighter smile: Intense Clean for a more thorough-feeling clean and Whitening to help polish away surface stains for everyday brightness.

Choose iO5 if: you want app coaching and more brushing modes, including Whitening and Intense Clean, or if you want a whitening-focused brush head from the start.

Shop the Oral-B iO5 →

Oral-B iO Series 6 or iO Series 7 — ~$160–220

A more guided clean for plaque removal and gum care

The iO Series 6 and iO Series 7 are a good choice if you want more feedback during brushing without stepping up to iO9 or iO10 and the Gum Care Mode.

Gum Care mode is a dedicated brushing mode on select iO models that uses gentle pulses designed to massage and stimulate gum tissue as part of a daily oral care routine. It is intended for users who want extra focus on gum health while still cleaning the teeth.

It features an interactive display that communicates mode setting, charging progress, the 2-minute brushing timer, and more to help support your routine.

The iO Series 6 includes 5 modes — Daily Clean, Sensitive, Whitening, Gum Care, and Intense Clean — plus app-connected coaching and Bluetooth connectivity.

Oral-B iO Series 6 (~$160): 5 modes plus an interactive display, app-based brushing recognition, and Bluetooth app connectivity.
Oral-B iO Series 7 (~$220): Adds a color interactive display, a magnetic charger, and a premium travel case.

Choose the iO6 or iO7 if: You want app coaching, an interactive display, and Gum Care mode with a gentle brushing pattern designed for gumline care.

Note: iO6 and iO7 replace Super Sensitive mode with Gum Care mode.

Shop the Oral-B iO6 → | Shop the Oral-B iO7 →

Oral-B iO Series 9 and iO Series 10 — ~$330–400

Our signature oral care toothbrush, powered by Oral-B’s most advanced technology. Both models include 7 brushing modes — Daily Clean, Sensitive, Super Sensitive, Whitening, Intense Clean, Gum Care, and Tongue Clean — plus a Color Interactive Display, app-connected coaching, Position Detection technology through the Oral-B app, andSmart Adapt Mode, which learns your individual brushing tendencies and adapts to your brushing up to 10 times per second — reading your pressure in real time and adjusting for a professional-feeling clean, every day.

Oral-B iO Series 9 (~$330): A premium iO model with 7 brushing modes, Color Interactive Display, Smart Adapt Mode, Position Detection technology through the Oral-B app, and a Power2Go Charging Travel Case.
Oral-B iO Series 10 (~$400): Adds the iO Sense smart charger, which gives brushing guidance from the charger, including time, coverage, and pressure feedback, without needing to use the app during brushing.

Choose the iO9 or iO10 if: You want the most advanced Oral-B iO features, including more brushing modes, real-time feedback, app-connected coaching, and premium accessories; you value data and feedback to improve your brushing over time; or you see brushing as an investment in long-term oral-care habits.

Shop the Oral-B iO9 → | Shop the Oral-B iO10 →

Oral-B iO Comparison Chart: Features, Modes, App Coaching, and Price

Feature	iO2	iO3	iO4	iO5	iO6	iO7	iO9/iO10
Approximate price	~$65	~$90	~$100	~$120	~$160	~$220	~$330-400
Removes 100% more plaque vs. manual¹	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Modes	3	3	4	5	5	5	7
Daily Clean	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Sensitive Mode	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Super Sensitive Mode	Yes	No	Yes	Yes	No	No	Yes
Whitening Mode	No	Yes	Yes	Yes	Yes	Yes	Yes
Gum Care Mode	No	No	No	No	Yes	Yes	Yes
Intense Clean Mode	No	No	No	Yes	Yes	Yes	Yes
Tongue Clean Mode	No	No	No	No	No	No	Yes
Pressure Feedback	Automatic Pressure Sensor	Visible Pressure Sensor (3-color)	Visible Pressure Sensor (3-color)	Visible Pressure Sensor (3-color)	Visible Pressure Sensor (3-color)	Visible Pressure Sensor (3-color)	Visible Pressure Sensor (3-color)
Oral-B App connectivity	No	No	No	Yes	Yes	Yes	Yes
Interactive Display	No	No	No	No	Yes (Black and White)	Yes (Color)	Yes (Color)
Position Detection Technology	No	No	No	Yes	Yes	Yes	Yes
Smart Adapt Mode	No	No	No	No	No	No	Yes

Prices are approximate and may vary by retailer, promotion, bundle, and availability. Feature availability may vary by retailer bundle.

Final Verdict: The Right Oral-B iO for You

There’s no single “right” Oral-B iO — there’s the right Oral-B iO for your goals.

Choose iO Series 2 if you want the simplest Oral-B iO with a one-button experience.
Choose iO Series 3 or 4 if you want the Visible Pressure Sensor and Whitening mode at an accessible price
Choose iO Series 5, 6, 7, 9, or 10 if you want app-connected coaching and more brushing modes.
Choose iO Series 6, 7, 9, or 10 if you want an interactive display and Gum Care mode.
Choose iO Series 9 or 10 if you want advanced iO features like Smart Adapt Mode, 7 brushing modes, a Color Interactive Display, and premium accessories.

Shop the Full Oral-B iO Lineup →

Shop this article

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FAQs: Choosing an Oral-B iO

Which Oral-B iO is best for plaque removal?

Every Oral-B iO removes 100% more plaque versus a regular manual toothbrush and 6x more plaque along the gumline versus a regular manual toothbrush.¹ In peer-reviewed research, oscillating-rotating electric toothbrush technology has been shown to perform strongly for plaque and gingivitis reduction.²,³

Choose iO2 for a simple one-button electric toothbrush, iO3 and above for a Visible Pressure Sensor, iO5 and above for app-connected coaching, iO6 and above for an interactive display and Gum Care mode, and iO9 or iO10 for Smart Adapt Mode and the most advanced iO features.

→ See why electric toothbrushes remove more plaque than manual.

Which Oral-B iO is best for sensitive teeth?

If you have sensitive teeth or gums, start by looking for gentler brushing modes and pressure guidance. The iO Series 2 is the simplest option, with three modes — Daily Clean, Sensitive, and Super Sensitive — plus an automatic pressure sensor that signals when too much pressure is applied and slows the brush.

iO Series 3 and above add Oral-B’s Visible Pressure Sensor, which lights up green when you’re using the right amount of pressure and red when you’re brushing too hard. If you want additional coaching and feedback, choose iO9 or iO10 for Smart Adapt Mode.

→ See Best for Sensitive Teeth.

Which Oral-B iO is best for gum health?

For gum health, choose an Oral-B iO model that helps you brush gently and consistently. Every Oral-B iO uses Oral-B’s dentist-inspired round brush head with oscillating-rotating technology and gentle micro-vibrations, and all current iO models help guide brushing pressure.

iO Series 2 is a good simple starting point if you want three modes — Daily Clean, Sensitive, and Super Sensitive — while iO Series 3 and above add the Visible Pressure Sensor, which lights up green when you’re using the right amount of pressure and red when you’re brushing too hard.

If you want a dedicated Gum Care mode, choose iO Series 6, iO Series 9, or iO Series 10. In a 2026 peer-reviewed network meta-analysis of electric toothbrush technologies, oscillating-rotating toothbrushes ranked highest among evaluated technologies for both plaque reduction and gingivitis reduction.³

What's the difference between the Oral-B iO series and the Oral-B Pro series?

The Oral-B Pro series is Oral-B’s classic rechargeable electric toothbrush line, while Oral-B iO is Oral-B’s newer, more advanced electric toothbrush line.

Both use Oral-B’s dentist-inspired round brush head design and oscillating-rotating cleaning action, but Oral-B iO adds gentle micro-vibrations for a smoother brushing experience and more advanced features on select models, including app connectivity starting with iO Series 5, interactive displays starting with iO Series 6, and Smart Adapt Mode on iO Series 9 and iO Series 10.

What’s the difference between Oral-B iO and leading sonic toothbrushes?

Oral-B iO features a round brush head with oscillating-rotating technology, while sonic toothbrushes typically use a rectangular brush head that cleans with side-to-side sonic vibrations.

The Oral-B iO round brush head is designed to surround each tooth for tooth-by-tooth cleaning, similar to the professional polishing tools used by dental professionals, and may help reach areas such as the backs of teeth.

Both technologies can effectively clean teeth. However, a 2026 peer-reviewed network meta-analysis independently ranked oscillating-rotating technology highest for plaque reduction and gingivitis reduction compared with other powered toothbrush technologies.³

Is an Oral-B iO worth it compared to a manual toothbrush?

Yes. Oral-B iO removes 100% more plaque and delivers 100% healthier gums in 1 week versus a regular manual toothbrush.¹ → See Manual vs. Electric.

Do I need the Oral-B app to use an Oral-B iO?

No. Every Oral-B iO works without the app. App connectivity starts with iO Series 5 and adds coaching, coverage tracking, and brushing history to help you build a more consistent routine. The cleaning benefit comes from the toothbrush; the app adds guidance to help you brush more effectively.

Oral-B power toothbrush users who switched to an app-connected Oral-B toothbrush saw a 73% reduction in overall plaque — and 74% in the hard-to-reach back molars — in just 2 weeks.*

Can I use any brush head with any Oral-B iO?

Yes — all Oral-B iO brush heads work with all Oral-B iO handles, including Ultimate Clean, Gentle Care, Gum Care, Whitening, and Targeted Clean. Note that Oral-B iO brush heads are not compatible with older Oral-B Pro or Genius handles, which use a different attachment system.

Which Oral-B iO comes with a travel case?

Current Oral-B iO travel case availability depends on the model and retailer bundle. iO4, iO5, iO6, and iO7 may include a travel case depending on the bundle.

iO9 commonly includes a Power2Go Charging Travel Case, while iO10 bundles may include premium accessories such as the iO Sense smart charger. iO2 and iO3 typically do not include a travel case.

How long does an Oral-B iO battery last?

Battery life varies by Oral-B iO model, brushing mode, brushing frequency, and use of connected features. Simpler models can last longer on a full charge; for example, iO Series 2 can last up to four weeks on a single charge.

Most other Oral-B iO models are designed to last up to about two weeks on a full charge when used twice daily for two minutes, but actual battery life may vary.

Charging time and battery display features also vary by model; for example, iO Series 10 includes the iO Sense smart charger, which displays battery level and brushing guidance.

How often should I replace my Oral-B iO brush head?

Replace your Oral-B iO brush head every 3 months, or sooner if the bristles become worn or frayed. Oral-B iO brush heads include indicator bristles that fade to signal when it’s time to replace.

What warranty and guarantee come with an Oral-B iO?

Oral-B electric toothbrushes generally include a limited warranty that starts on the date of purchase. Warranty coverage, service process, replacement terms, and exclusions may vary by product, country, and retailer.

Keep your proof of purchase and check Oral-B’s current warranty and service information at service.oralb.com or through an authorized Braun/Oral-B Service Center.

Is Oral-B iO waterproof? Can I use it in the shower?

Yes. Oral-B iO handles are designed to be water-resistant for normal bathroom use and are safe to use in the shower. You can rinse the handle after brushing, but avoid fully submerging it in water. Do not place the charger in or near water, and dry the handle before placing it back on the charger. For the most current care instructions, check the product manual for your specific Oral-B iO model.

What age is Oral-B iO appropriate for?

Oral-B iO is generally intended for adults and older children or teens who can brush safely with an adult-size electric toothbrush.

For younger children, Oral-B recommends a dedicated Oral-B Kids electric toothbrush, which is designed with smaller brush heads and age-appropriate brushing features. Always follow the age guidance on the product packaging and supervise children while brushing.

Sources

1. Grender, J., Goyal, C. R., Qaqish, J., & Adam, R. (2020). An 8-week randomized controlled trial comparing the effect of a novel oscillating-rotating toothbrush versus a manual toothbrush on plaque and gingivitis. International Dental Journal, 70(Suppl 1), S7–S15. https://doi.org/10.1111/idj.12571
2. Zou, Y., Grender, J., Adam, R., & Levin, L. (2024). A meta-analysis comparing toothbrush technologies on gingivitis and plaque. International Dental Journal, 74(1), 146–156. https://doi.org/10.1016/j.identj.2023.06.009
3. Luo, C., Chen, N., Jing, Q., Hu, S., Wan, S., Zhang, S., Liu, G., Li, N., & Zhao, L.-Y. (2026). Comparative efficacy of electric toothbrush technologies in plaque and gingivitis reduction: A network meta-analysis. Clinical Oral Investigations, 30, 270. https://doi.org/10.1007/s00784-026-06955-z
4. Thurnay, S., Adam, R., & Meyners, M. (2022). A global, in-market evaluation of toothbrushing behaviour and self-assessed gingival bleeding with use of app data from an interactive electric toothbrush. Oral Health & Preventive Dentistry, 20, 1–10. https://doi.org/10.3290/j.ohpd.b2572911

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