That is exactly what happened with my most recent order. I bought new ones (C3) from a local store, and the inside of the bottom of the brush, where it joins to the handle, was different. These do not appear to be authentic Philips items. Sonicare C1 vs. C3 by Philips
It came with one brush head, but I can't seem to find any C2 brushes. Yes, the Sonicare ProtectiveClean 4100 toothbrush handle is compatible with this. In this instance, the design can be readily modified. It conforms to the curve of your teeth to clean more of the surface and remove plaque from difficult-to-reach areas. Gentle and strong: Even if you don't employ the proper technique, the soft, tightly packed bristles will slide softly over the gum line, delivering an excellent clean. There's no way to know; a built-in reminder lets you know when to change your brush head so you don't have to remember. It's better when we work together. Use Sonicare brush heads designed to operate together and deliver the finest performance to get the most out of any Sonicare click-on handle.
This is compatible with all click-on Philips rechargeable toothbrush handles. HealthyWhite+, 2 Series plaque control, 3 Series gum health, DiamondClean, EasyClean, FlexCare Platinum, FlexCare Platinum Connected, FlexCare+ for Kids, HealthyWhite, and ProtectiveClean are all suitable for these models. As part of a healthier oral care programme. Instructions: For the best results, dentists recommend replacing your teeth every three months. contoured profile to match the shape of your teeth.
Good morning! Philips Sonicare Simply Clean Replacement Toothbrush Heads are designed to be used with the Philips Sonicare HX9903/61 toothbrush. The BrushSync functionality, on the other hand, will be inoperable.