One word of advice: The more expensive ones are better. You dont need to spend 200$, but the 80$ one is much better than a 30$ one.

That’s not the case for the Oral B ones. They’re pretty much all the same, but the more expensive ones have more blinken lights and sometimes an app.

What makes you say that? From what I’ve seen they all use the same actuator.

got a diamondclean and it took out some plaque that I couldn't get rid off for a long time.

Used Chinese knock off for a long time, a Soocas. Recently thought about upgrading from $30 Chinese to $80 Chinese (OClean), the latter failed after 2 months. YMMMV ofc, but after that, and reading on HN about Chinese stealing IP from Europe, we thought about getting a Phillips (which my dentist recommended). It was a Black Friday deal, and knowing the differene between 5100 or 5XXX and one of the top brushes, Diamondclean, was like 1/4th of a dentist visit - we got the latter. And both me and wife think it's awesome. + you get a travel etui. The app sucks just like the Soocas and OClean app, but the vibration every 30s is enough "smartness" for me.

Funny that the cheap Chinese sonic brush (Soocas) is still working well and I'm thinking about getting a shoe cleaning brush set for it.

Phillips toothbrush doesn't last as long on one charge as the Chinese brushes do.