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The Sonicare 9900 Prestige and the Oral-B IO 9 are both high-end electric toothbrushes that offer advanced cleaning performance compared to regular toothbrushes. So how do you decide which one gives you better value for money? The clue could be in the differences between the two which we examine below.
Difference between Oral B io9 and Philips Sonicare Prestige 9900 Specs
- Cleaning/Brushing Action: The Sonicare 9900 Prestige uses sonic cleaning action, while the Oral-B iO9 has 3D cleaning technique that involves an oscillating-rotating cleaning action. The sonic cleaning action of the Prestige is better for gentle cleaning, while the oscillating-rotating action of the iO9 is more suited for deep cleaning as it uses three forms of cleaning (pulsations, oscillations, and rotations).
- Handle Design/Colours: The iO9 is available in 3 colour options (white alabaster, black onyx, and rose quartz), while the Prestige is available in 2 colour options (champagne and midnight blue). The iO9 may be a better choice because it offers a wide choice of colour options and flexibility to choose a colour that matches your style.
- Cleaning Modes: The iO9 has 7 cleaning modes (daily clean, sensitive, super sensitive, intense, whiten, gum care, and tongue clean), while the Prestige comes with 5 cleaning modes (clean, white+, deep clean+, gum health, and sensitive). The iO9’s cleaning modes can be changed from the handle, while the Prestige’s have to be changed via the app. The Prestige offers 3 different intensities to the cleaning modes, low, medium, and high. The iO9 and Prestige have a different number of cleaning modes, so you may prefer one over the other depending on your needs.
- Pacer: The pacer on the Prestige operates in 6 x 20 seconds intervals, while the iO9 is set to 4 x 30 seconds. The six seconds intervals enables your cleaning to be more precise which makes the Prestige more favourable in a way that could influence your decision.
- Brush Heads: The iO9 comes with 1 brush head (1 x Ultimate Clean), while the Prestige comes with 1 brush head (1 x A3 Premium All-in-One). The two brushes have different shaped brush heads, so you may prefer one over the other based on your individual preferences.
- Pressure Sensor: The Prestige has an LED ring on the base of the handle that illuminates purple when too much pressure is applied, while the iO9 has an LED ring at the top of the brush handle that lights up red when too much pressure is applied. The 9900 vibrates the brush handle to alert you, the iO9 does not. The iO9 also lights up green when the right amount of pressure is applied, the Prestige does not. The prestige is better because it has both audial (vibrations) and visual (neon ring at the base of the handle) that alert you when you are brushing too hard in comparison to the visual (360 ring) in the io9.
- Battery: Both brushes have a claimed 2-week battery life. The Prestige achieved around 4 weeks in actaual use compared to the 2 of the iO9. The iO9 gives more battery feedback on the handle via the OLED display, while the Prestige has an exact percentage (%) shown within the smartphone app. The type and amount of battery feedback may be more important to you and could influence your decision in favour of the io9 because the feedback is right on the handle and not the app.
- Bluetooth Technology: The Oral-B app tracks more tooth surfaces than the Prestige, but it appears to take longer than 2 minutes in the Oral-B app to successfully clean all tooth surfaces. The Sonicare app feels more comprehensive, educational, and useful. The type and amount of information provided through the app may be more important to you and could influence your decision.
- Other Features & Technologies: The Prestige has Brushsync technology that will track how long the brush head has been used. It will illuminate an LED on the brush handle to alert you when it is time to replace it. This is not available on the iO9.

Table of Contents
Similarities
Both models come with multiple brushing modes, allowing you to choose the right brushing experience for your individual needs. They are also compatible with mobile apps that track brushing habits and offer personalised coaching.
Finally, both toothbrushes are backed by their respective manufacturer’s warranty, giving you peace of mind and protection against defects or malfunctions. Sonicare 9900 Prestige and the Oral-B IO 9 obviously have a number of similarities
Sonicare 9900 Prestige Review and Specs
The Sonicare 9900 Prestige electric toothbrush is a high-quality toothbrush that offers advanced features to help improve oral hygiene.
- It has multiple brushing modes, including Clean, White, Deep Clean, Gum Care, and Tongue Care, which allow you to customise your brushing experience to your specific needs.
- The toothbrush is also compatible with the Sonicare app, which tracks brushing habits and provides personalised coaching to help improve brushing technique.
- Additionally, the Sonicare 9900 Prestige comes with a travel case for convenience, has a pressure sensor to alert you if you are brushing too hard, and is compatible with multiple brush heads for further customization.
- Multiple Cleaning Modes: The Sonicare 9900 has multiple cleaning modes, including Clean, White+, Deep Clean, and Gum Care, to meet the different needs of each user.
- Brush Heads: The toothbrush is compatible with a range of brush heads, including DiamondClean, Plaque Control, and Gum Care, to provide a customized brushing experience.
- Pressure Sensor: The toothbrush has a built-in pressure sensor that alerts you if you’re brushing too hard, helping to protect your gums.
- BrushSync Technology: The toothbrush features BrushSync technology, which tracks the usage of the brush head and reminds you to replace it when it’s time.
- Handle Display: The toothbrush has a handle display that shows you the cleaning mode, pressure sensor, and battery life.
- USB Charging: The toothbrush comes with a travel case that doubles as a USB charger, making it convenient to use on the go.
- Compact Design: The toothbrush has a compact design that makes it easy to pack for travel.
- Long Battery Life: The toothbrush has a long battery life, allowing you to use it for multiple brushing sessions without having to recharge it.
- Quiet Operation: The toothbrush operates quietly, making it suitable for use at night.
- Easy-to-Clean Design: The toothbrush has a sleek, easy-to-clean design that is resistant to water and stains.
- Timer and Pacer: The toothbrush has a built-in timer and pacer that ensures you brush for the recommended two minutes and covers all areas of your mouth.
Oral-B IO 9 Specs
The Oral-B IO 9 electric toothbrush is another premium toothbrush that offers excellent cleaning performance. It has an innovative brush head design that rotates and oscillates to remove up to 100% more plaque than a manual toothbrush. The toothbrush is also compatible with the Oral-B app, which tracks brushing habits and provides personalized feedback to help improve brushing technique. The Oral-B IO 9 also has multiple brushing modes, including Daily Clean, Sensitive, Whitening, and Deep Clean, and comes with a pressure sensor to alert you if you are brushing too hard. Finally, the toothbrush has a long battery life and comes with a travel case for convenience.
- Brush Head: The Oral-B IO 9 features an innovative brush head design that removes more plaque than a regular toothbrush.
- Pressure Sensor: The toothbrush has a built-in pressure sensor that alerts you if you’re brushing too hard, helping to protect your gums.
- Mobile App: The Oral-B IO 9 is compatible with a mobile app that provides personalized feedback and tracks your brushing habits over time.
- Magnetic Charging: The toothbrush features magnetic charging that allows it to recharge in just three hours, making it a convenient option for travel.
- Display: The toothbrush has a color display that shows you the brushing time, pressure sensor, and battery life.
- Multiple Modes: The Oral-B IO 9 has multiple brushing modes, including daily clean, gum care, and sensitive, to meet the different needs of each user.
- Smart Coaching: The toothbrush provides real-time feedback and coaching through the app to help you improve your brushing technique and achieve a cleaner, healthier mouth.
- Bluetooth Connectivity: The toothbrush connects to your smartphone via Bluetooth, allowing you to access the app and receive personalized feedback and coaching.
- Position Detection: The toothbrush uses advanced sensors to track your brushing position and provide feedback on which areas you need to focus on for better cleaning.
- Customizable Brushing Experience: You can customize the brushing experience by choosing your preferred brushing mode, intensity, and duration, as well as set reminders to replace the brush head.
- Long Battery Life: The toothbrush has a long battery life, allowing you to use it for multiple brushing sessions without having to recharge it.
- Waterproof: The toothbrush is waterproof, making it easy to clean and safe to use in the shower or bath.
Ultimately, the choice between the Sonicare 9900 Prestige and the Oral-B IO 9 will depend on your individual needs and preferences. Both toothbrushes have excellent features that make them well suited for improving oral hygiene.
The Sonicare 9900 Prestige offers multiple brushing modes, mobile app compatibility, a pressure sensor, and multiple brush head options, which provide you with a high level of customization and feedback. On the other hand, the Oral-B IO 9 has an innovative brush head design that removes more plaque and has a pressure sensor to alert you if you are brushing too hard. Additionally, the Oral-B IO 9 is compatible with a mobile app that provides personalized feedback and has a fast-charging time of only three hours.
Recommendation
Ultimately, the choice between the two toothbrushes will come down to personal preference and specific needs. If you’re looking for a toothbrush with multiple brushing modes and a lot of feedback, the Sonicare 9900 Prestige might be the better choice for you. However, if you’re looking for a toothbrush with fast charging and an innovative brush head design, the Oral-B IO 9 might be the better option.
When it comes to choosing a premium smart electric toothbrush, the options can be overwhelming. It’s important to remember that all three models clean teeth extremely well, as this is the primary purpose of an electric toothbrush. These toothbrushes also have built-in timers, pacers, and pressure sensors.
The debate between Sonicare and Oral-B has been ongoing, and choosing between these three models is not an easy task. The differences between these models are subtle, but they can have a big impact on daily use. For instance, the Sonicare 9900 has a more compact travel case with USB charging and a Type-C connector, whereas the Oral-B iO has a larger case and requires a proprietary power adapter but has magnetic charging that only recharges in 3 hours.
In my opinion, the Sonicare 9900 is the more complete package with a refined look and feel that matches its higher price point. The Oral-B iO, on the other hand, is innovative with its colour display and fast charging capabilities.
Ultimately, the choice comes down to personal preference. If you already own a toothbrush from either brand, it may be wise to stick with what you know. However, if there’s a specific feature that appeals to you, choose the toothbrush that fits your needs best
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Dr. Tom Bell has a PhD in Medical Anthropology. He has a keen interest in oral health topics and is the founder of dentalrave. He has been an oral health researcher and electric toothbrush enthusiast for over 10 years. Tom works with Awin and others in his research. When not talking about dental hygiene and gadgets, Tom likes spending time outdoors hiking.