Pisonicleara Replacement Toothbrush Heads(10-pc) Compatible with Philips Sonicare 4100 5100 6500 Medium Soft Electric Tooth Brush Refill Hx6920 Hx9023 1100 Plaque Control

Better product for awesome price. No problems with my Sonicare. Don't waste your money on name brand

Pro: these are off-brand brush heads but they actually stay on as the handle vibrates. Good deal and as effective as the name brand. Con: They are tight on and off. Update after 3 months’ use: these off brand brushes still fit tightly and brush bristles lasted longer than the name brand.

I was a little worried about whether the toothbrush heads would actually fit and function perfectly since they were not made by the manufacturer. They fit perfectly, and are indistinguishable from the originals. They also cost about $1 each as opposed to the exorbitant price for the manufacture's replacement toothbrush heads. Great buy, and highly recommended!

Smaller than the real philips ones, but they've kept my teeth clean enough, and are way cheaper. Bristles feel fine. Would love if the bristle heads are a bit bigger.

These work perfectly w/the Sonicare toothbrush system. Save yourself the money & get these. They may not have exact fit at base but doesn't matter. The way it works is the same.

These brush heads worked seamlessly with my Sonicare toothbrush. You don't get the same signal when to change the brush as the OEM head, which I ignored anyway. These actually seem to do a slightly better job, as my gums bled minimally before, and don't bleed at all now. That could be a sign that the bristles are more stiff, which could wear harder on your enamel, but I am not a dental professional. Anyway, these are 25% of the price of the Philips heads.

They fit my sonicare toothbrush but don’t vibrate as strongly as the original toothbrush head

These are reasonably priced and work well with my Sonicare. Why pay more for toothbrushes when these work well. If you own a Sonicare, give these a try. You can't tell the difference from the name brand brushes.

Se adaptan muy bien a mi cepillo funcionan igual a las originales.