Philips Sonicare DiamondClean HX9912/71 Toothbrush 2-Pack
Where to Buy
| Retailer | Price | Last seen | Buy |
|---|---|---|---|
 bestbuy.com 15-day returns (in store too) · free return shipping · free shipping on $35+ | $339.99 | Aug 6, 2026, may have changed | Buy Now |
 Amazon 30-day returns (in store too) | $399.99 | Aug 6, 2026, may have changed | Buy Now |
Prices are collected from retailer listings; each row shows the date we last saw that price. Return and shipping terms are each store's standard policy from our retailer research (April 2026). Some products and categories have different terms, so check with the store before you buy.
Pros
- •Provides a highly effective and lasting deep clean that feels professionally done, comparable to a dental hygienist visit.
- •Noticeably whitens teeth and removes tough stains from tea and coffee even after the first use.
- •Superior build quality and cleaning performance compared to cheaper electric toothbrush brands.
- •Includes convenient, high-quality travel cases that double as chargers, perfect for frequent travelers.
- •Offers 12 brushing settings with multiple modes and intensity levels, allowing meaningful customization.
- •Strong vibration power ensures thorough plaque removal and improved gum health within days.
- •Features Pressure Sensor technology to protect enamel and gums by preventing over-brushing.
- •Slim, well-balanced handle with a premium feel and long battery life lasting weeks on a single charge.
- •BrushSync technology automatically tracks brush head wear, adding convenience.
- •Comes as a two-pack, adding value for couples or multiple users.
Cons
- •The metal part of the brush can break if the travel case opens unexpectedly during transport.
- •Replacement brush heads, including the included A3 heads, are expensive at full retail price.
- •App connectivity is mostly unnecessary for users who prefer a straightforward brushing experience.
- •No wall-mounted charging option is included, which may limit charging setup preferences.
- •New users may require a bit of time to figure out all the modes and settings for optimal use.
- •Alternative brush heads might be better for those with sensitive gums, as the A3 is more oriented for stain removal and deep clean.
Bottom Line
The Philips Sonicare DiamondClean Connected 2 Pack delivers an exceptionally thorough, customizable, and professional-level cleaning experience with premium accessories and excellent battery life. Its standout whitening and stain-removal capabilities plus the convenience of travel charging cases make it ideal for users who want a high-end brushing routine and often travel. However, its higher price point and costly replacement brushes might make budget-conscious buyers pause. If you want similar smart features but prefer a different style or pricing, consider looking into other Sonicare models tailored for sensitive gums or simplified use.
What Reviewers Are Saying
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Discussion
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