ExpertResults 7000 Sonic (HX7533/03)

I prefer Philipps sonic care expert. Very good brush. But defintly not for live. Battery will die at some point and the color in my black brush startet to fade at the leds

I have a sonicare (7300 I believe) and love it but the oral-b ii system are the best there are, if you go io3 or up.

I'm going against the grain to say Sonicare. I have both brushes. The design of the IO brush head has a small hole under the bristles where spit and toothpaste accumulates. Despite taking my brush head off and rinsing after every use, it quickly molds on the inside. It could be that I live in a humid environment (indoors usually 40%), but the mold is so gross. If you don't remove and clean it after every use it can mold even quicker. I love the feeling of the IO brush otherwise, but am sticking with Sonicare for everyday use.

costco warehouse model is about the lowest price you can get for the better motor there are two versions of the motor

I don't know if there's any good ones.  I guess there was a redesign in 2023? Which may explain why some people love it and others hate it depending on how recently they bought. The new ones seem to have a screw in the body that vibrates loose and makes the brushing action terrible.  The cheap ones/double packs you get at Costco and Sam's club were terrible out of the box for me. The mid-level ones like 3000-4000 series used to be a good sweet spot, but also  vibrated themselves apart for me. The expensive ones also seem to break, and now you're just out even more money.  I had to swap to Oral B despite using Sonicare for decades previously