
Philips Sonicare DiamondClean Smart 9700
Sonic
- 3-year cost
- ~$380
- Price per head
- $6.66
- Battery
- 14-day battery
- 6 heads + tongue cleaner
- Charging case
- Tongue Care
Best for: Buyers who would rather pay for heads up front
Sonic~$380Philips Sonicare
Philips' flagship. SenseIQ, Philips says, changes the brushing automatically as both pressure and motion change (the 7100's automatic power adjustment is the nearest thing below it), and the Prestige USB travel case charges the handle. It is also the priciest brush in this catalog, and ships with a single A3 head.
Approx. price
~$380
maker's store, not a live price
Best for: Someone who wants the brush to adjust itself to pressure and motion
Multi-signal pressure sensor. Philips Sonicare's description: SenseIQ adjusts brushing automatically based on pressure and motion; ring lights purple with vibration.
No ADA Seal listing found for this model on the ADA’s own product search. That is not a failed test: the Seal is voluntary and makers apply for it product by product.
These are facts about features and listings, not a statement that the brush prevents or treats anything. What a pressure sensor does · What the ADA Seal means
12 heads over 36 months at Philips Sonicare's stated 3-month interval, less 1 head in the box. Head price: Sonicare SimplyClean 6-pack (HX6016/77), $39.96 on usa.philips.com. How this is worked out
What the extra money buys: Same 62,000 brush movements / min and a pressure sensor as the Philips Sonicare Series 5700; the extra $300 buys 3 more modes, app tracking, a multi-signal pressure sensor, a charging travel case and a charging stand. See the Philips Sonicare Series 5700.
The two lists above are drawn from the maker’s own pages and prices, not from owner reports. Where owner discussion has been read it appears in its own section below, so the two are never mistaken for each other.
No owner discussion has been read for the Philips Sonicare Prestige 9900 yet. This section stays empty until there is something real to put in it.

Sonic
Best for: Buyers who would rather pay for heads up front

Sonic
Best for: App coaching during the brush, not just a log afterwards

Sonic
Best for: A countertop stand and the premium DiamondClean finish