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Philips Sonicare DiamondClean Smart 9700 vs ProtectiveClean 6100

By / October 30, 2026

Quick Answer

The DiamondClean Smart 9700 is the premium choice with 5 cleaning modes, 7 brush heads, and advanced app coaching, while the ProtectiveClean 6100 offers solid performance with 3 modes and 1 brush head at a lower price. Choose the 9700 for comprehensive oral care features or the 6100 for effective basic cleaning.

Key Points:

  • DiamondClean Smart 9700 includes 5 modes (including Tongue Care) vs 3 modes on ProtectiveClean 6100
  • 9700 comes with 7 specialized brush heads vs 1 standard head with the 6100
  • DiamondClean offers premium app-guided coaching and pressure sensors for advanced oral care tracking

Do you invest in the full suite of advanced technology, or does the mid-range model offer enough benefits for your needs?

On one side, you have the flagship DiamondClean Smart 9700—the ultimate system with 5 modes (including Tongue Care), seven brush heads, and the most precise app-guided coaching available. On the other, the highly-rated ProtectiveClean 6100, which delivers powerful sonic cleaning, pressure control, and three core modes at a compelling price.

Is the $170+ price difference worth the smart features, or will the 6100 deliver the exceptional clean your dentist recommends?

We dive deep into the performance claims, accessory bundles, and smart tech of the 9700 and 6100 to show you exactly where your money is best spent. Read on to find the perfect Sonicare match for your smile goals and budget.

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Part of our complete Philips Sonicare lineup guide.

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Key Differences between Philips Sonicare 6100 and 9700

The comparison between the ProtectiveClean 6100 (mid-range) and the DiamondClean Smart 9700 (flagship) highlights a major jump in features, technology, and price.

Philips Sonicare ProtectiveClean 6100 DiamondClean Smart 9700
Mid-Range (Protection Focused) Flagship (Maximum Features & Coaching)
Improves gum health in 2 weeks. Up to 20x more plaque removal; up to 15x healthier gums.
3 Modes: Clean, White, Gum Care 5 Modes: Clean, White+, Gum Health, Deep Clean+, Tongue Care
No App Connectivity Has (Bluetooth connection for personalized coaching, real-time 3D mouth map, missed area detection, and focus area tracking)
Basic Pressure Sensor: Warns you and reduces vibrations if pressing too hard. Advanced Smart Sensors: Real-time Pressure Sensor (flashing light ring), plus Location (missed spot) and Scrubbing sensors tracked via the app.
BrushSync Replacement Reminder: Tracks time/pressure and alerts you when to replace the head. BrushSync Replacement Reminder & Pairing: Tracks time/pressure, and the brush head automatically selects the optimal mode for that head type.
1x W Diamond Clean brush head. 7 Total Heads: 1x A3 All-in-One, 3x C3 Plaque Control, 2x G3 Gum Care, 1x TongueCare+ brush.
Compact charging base. Premium Charging Glass and USB Charging Travel Case.
$129.00
Check it out

1. Cleaning Modes and Scope

The 9700 offers more specialized cleaning options than the 6100.

  • The ProtectiveClean 6100 offers 3 Modes (Clean, White, and Gum Care).
  • The DiamondClean Smart 9700 offers 5 Modes (Clean, White+, Gum Health, Deep Clean+, and a dedicated Tongue Care mode). It also makes a much higher cleaning claim, promising up to 20x more plaque removal.

2. Smart Coaching and App Use

This is the most critical difference: the level of personalized guidance.

  • The 6100is a standalone brush with no app connection. Its smart features are limited to the pressure sensor and timers.
  • The 9700features full Bluetooth connectivity to the Philips Sonicare App. This allows for personalized coaching, real-time feedback on missed areas (3D mouth mapping), and tracking to eliminate scrubbing motions, ensuring a flawless technique.

3. Brush Head Intelligence

  • While both have BrushSync reminders, the 9700adds BrushSync Pairing. It automatically detects the type of brush head attached (e.g., Plaque Control or Gum Care) and automatically sets the handle to the optimal mode and intensity for that specific head. The 6100 does not have this auto-pairing feature.

4. Accessories and Price

The price difference largely reflects the accessories included.

  • The 6100is the more budget-friendly option and comes with 1 brush head and a compact charger.
  • The 9700is the premium choice and includes a luxury Charging Glass, a USB Charging Travel Case, and a massive bundle of 7 total specialized brush heads