Much like some of the other reviewers, I can agree the bristles are a bit hard. I am not going to reduce my rating, because I made the decision to still order these though I read the review. I will say, they do soften up after about 2 weeks of use, and they work as well as the original replacement heads. Unlike other generic brands of replacement tooth brush heads, these do not fall apart and the bristles do not start to shed or stretch out. I plan to purchase these again. I would like to try the softer bristle to see the difference, and I might order those to try them. I would like it if there were a variety pack; this might be ideal for families who share a brush base.

So far, these brushes work exactly the same as the original Sonicare brushes but a lot cheaper. I like the compact size as it gets behind the molars much better than the regular size. In the beginning, they feel a little stiffer than the originals, but soften up after a few brushings. I can't give this product 5 stars yet as I don't know how long the brushes will last (it's been a month of use so far, and they still look pretty good). I also won't know until my next dental exam how good a job they did on my gums and teeth, but my teeth do feel clean.

Yahoo! Finally, a substitute for original Philips brand Sonicare toothbrush heads that are a truly comparable quality and doesn't cost a small fortune! I love my Sonicare toothbrush but the price of replacement heads, not so much. I just refuse to pay $9 a piece and up for replacement toothbrushes. I've tried 3 or 4 generic brands but they were all made with cheap bristles that started to splay out after as few as 2 or 3 brushings in some cases. I went on the hunt for good replacement brushes once again and tripped across these earlier this week. They're even the ever harder to find compact head which really does a significantly better job of thorough brushing in my opinion. You can comfortably get the head in all those hard to reach areas and the bristles are stiffer than any of the other generics out there. I would say that they rival the original Philips Sonicare brand. I love a slightly stiffer brush, I think it cleans better and it certainly holds up better. I was so thrilled that after using them for a few days, I went ahead and ordered another set of 4 just in case they suddenly disappear. It seems anytime I find a product I love, it's not long before that product is discontinued. I have my fingers crossed that these will hold up for 3 months each. Only time will tell. But for now, I am tickled pink!

Don't know why these have to be so expensive. To replace them every 6 mos is ridiculous. The price of a regular toothbrush is 1/4 of these, and there isn't much reason these should be much more than that. That said, I love my sonic care and won't give it up yet. We ordered a knock off standard size, and they are good, but soften up slightly sooner than name brand. I need the compact though, so I'm putting the money out. My teeth feel so much more clean with it, and I just hold off on changing out the brush as long as I can. The electronic toothbrush still does a better job than a manual. I'm sure there are other cheaper brushes, and this will never break even in cost, but my dental appts are so much more pleasant without as much scraping. When this dies, I'll look for a more cost effective electric brush.

I got these to replace the Sonicare compact toothbrush heads that used to be available through Amazon. The ones they now offer that are the same fit cost twice as much so I was really glad to find the Sonimart Compact replacement heads. They are a good deal. The main difference between Sonimart and Sonicare compact toothbrush heads besides the price, of course, is that the opening on the bottom has a slightly different fit so that the Sonimart head doesn't click onto the toothbrush like the Sonicare does. But the fit is fine; it doesn't fall off or shake or anything like that. I'm very happy with these and would not go back to Sonicare ones because of the cost. It's not worth it.