The Philips Sonicare DiamondClean Smart 9300 and 9350 represent the pinnacle of personalized oral care coaching, sharing the exact same powerful 62,000 movement-per-minute sonic motor and advanced features like Bluetooth App integration, BrushSync technology, and 4 modes with 3 intensity levels.
However, when comparing these two flagship models, the question is not about performance—which is identical—but about value and presentation.
The primary distinction between the 9300 and 9350 lies solely in the retail bundle (SKU): the specific color of the handle, the number of brush heads included, and the accessories provided. One might offer a single brush head with a charging case, while the other provides two heads and a classic charging glass.
If you are seeking the best price for the top-tier DiamondClean Smart technology, the decision simplifies to choosing the bundle that is currently cheaper or includes the specific color or accessories you desire.
This comparison strips away the marketing noise to clarify exactly what you get with each model, ensuring you invest in the features, like the pressure sensor and real-time coaching, that truly matter for your oral health routine.
Part of our complete Philips Sonicare lineup guide.
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Key Differences between Philips Sonicare 9300 and 9350
The difference between the Philips Sonicare DiamondClean Smart 9300 and 9350 is minimal, as they are essentially the same core toothbrush handle from the flagship DiamondClean Smart series.
The variation between them is almost entirely based on the retail packaging, color, and included accessories (specifically the brush heads).
Here are the key aspects they share and the likely subtle differences:
1. Core Technology and Performance (Identical)
Both the 9300 and 9350 handles are part of the HX9903 model line and offer the exact same top-tier performance and features:
- Sonic Power: 62,000 brush movements per minute.
- Modes & Intensities: 4 Brushing Modes (Clean, White+, Gum Health, Deep Clean+) and 3 Intensity Levels.
- Smart Features: Bluetooth App connectivity (for real-time coaching, 3D mapping, TouchUp feature), Visible Pressure Sensor (light ring), and BrushSync Technology (automatic mode pairing and replacement reminders).
- Charging: Both sets include the Glass Charger and a Travel Case (which may be a charging or non-charging USB case depending on the bundle).
- Cleaning Claims: Both share the same maximum claims (e.g., up to 20x more plaque removal vs. a manual toothbrush).
2. Key Differences: Model Variation
The model number variation (9300 vs. 9350) usually points to different retail bundles, which affects the color and the number/type of brush heads included.
Neither one is “better” in terms of cleaning ability. The choice comes down to the minor differences in retail bundling, color, and specific accessories. Choose the one that is available and cheaper at the time of purchase.
| DiamondClean Smart 9350 | |
| Philips Sonicare 9300 | |
|---|---|
| Identical Handle (Same Smart Sensor Tech, Motor, Battery) | Identical Handle (Same Smart Sensor Tech, Motor, Battery) |
| 4 Modes (Clean, White+, Deep Clean+, Gum Health) | 4 Modes (Clean, White+, Deep Clean+, Gum Health) |
| 3 intensities Levels | 3 intensities Levels |
| Full Bluetooth App Coaching, Pressure Sensor, BrushSync | Full Bluetooth App Coaching, Pressure Sensor, BrushSync |
| Typical Color: rose gold, white and pink | Black, rosegold, white and Pink |
| one brush head | 2 Brush Heads |
| View price | Check it out |
In short: If you buy the handle alone, it’s the same. The difference is generally about the color you prefer and which specific Premium Brush Heads (All-in-One, Plaque Control, Gum Care, White+) come in the box for that particular SKU (Stock Keeping Unit).
Philips Sonicare DiamondClean Smart 9350 Review
The Philips Sonicare DiamondClean Smart 9350 is a feature-packed, premium toothbrush. Since it’s nearly identical to the 9300 model, let’s focus on the advanced features that make this entire series stand out.
Here is more detail on the features and user experience of the DiamondClean Smart 9350:
Smart Sensor Technology & Personalized Coaching
The core selling point of the 9350 is its comprehensive use of technology to coach you into being a better brusher, moving beyond simple timers.
- 3D Mouth Map & TouchUp Feature: When connected to the Philips Sonicare App, the toothbrush’s built-in sensors map your mouth in real-time. If you miss a spot, the app’s TouchUp feature highlights the uncleaned area, allowing you to go back for 100% coverage.
- Pressure Sensor: The light ring at the base of the handle flashes if you apply too much pressure. This is a crucial feature, as brushing too hard is a leading cause of gum recession.
- Scrubbing Sensor: The app tracks and alerts you if you are using a scrubbing motion instead of letting the sonic vibrations do the cleaning, helping you improve your technique.
- Focus Areas & Goal Setting: You can point out problem areas (like plaque buildup or sensitive gums) in the app, and the toothbrush will provide targeted guidance and reminders to give those areas extra attention during your routine.
Superior Cleaning Performance
The 9350 is built on Philips’ most powerful sonic platform:
- Plaque Removal: Removes up to 10x more plaque than a manual toothbrush (some versions of the DiamondClean Smart line claim up to 20x).
- Gum Health: Proven to deliver up to 7x healthier gums in just two weeks.
- 4 Modes & 3 Intensities: You have full control over your clean:
- Modes: Clean, White+, Deep Clean+, and Gum Health.
- Intensities: Low, Medium, and High settings allow you to customize the vibration strength, which is great if you have sensitive teeth or are just starting with a sonic brush.
Charging and Accessories
The accessories provided with the 9350 are luxurious and practical:
- Charging Glass: This is an iconic Sonicare accessory. You simply place the handle in the elegant glass cup, which rests on the charging base, and the handle charges inductively. The glass can also be used for rinsing.
- USB Charging Travel Case: The included travel case is hard plastic and often includes a built-in USB cable, making it a portable charging station that is excellent for travel (a feature you saved information on the ProtectiveClean 6100 having).
- BrushSync Technology: The handle automatically recognizes the type of brush head you attach (e.g., Premium Plaque Control) and selects the optimal cleaning mode and intensity for it. It also tracks usage time and pressure to alert you when it’s time to replace the head.
In summary, the DiamondClean Smart 9350 is designed for the user who wants total control and personalized coaching to achieve the highest level of oral care.
Which is better, Philips Sonicare 9300 or 9350?
Neither one is “better” in terms of cleaning ability. The choice comes down to the minor differences in retail bundling, color, and specific accessories. Choose the one that is available and cheaper at the time of purchase.
| DiamondClean Smart 9300 | DiamondClean Smart 9350 |
| Identical Handle (Same Smart Sensor Tech, Motor, Battery) | Identical Handle (Same Smart Sensor Tech, Motor, Battery) |
| 4 Modes (Clean, White+, Deep Clean+, Gum Health) | 4 Modes (Clean, White+, Deep Clean+, Gum Health) |
| 3 intensities Levels | 3 intensities Levels |
| Full Bluetooth App Coaching, Pressure Sensor, BrushSync | Full Bluetooth App Coaching, Pressure Sensor, BrushSync |
| Typical Color: Rose Gold, Gray, or Silver | Black or Pink |
| one brush head | 2 Brush Heads |
Looking for more Sonicare options? Check out our comprehensive guide to the best Philips Sonicare electric toothbrushes to find the perfect model for your needs.
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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.
Last update on 2026-01-21 / Affiliate links / Images from Amazon Product Advertising API