I genuinely can’t figure this out. I found an iPhone label with 1000x, which seems obvious. So what the hell is XY00? Everything else in the image is an example value.

Edit: right reading through this thread it seems its 100x the value, so XY represents a number, e.g. 15, then it would be 1500 cycles. The iPhone label I found must be from an earlier test or something. I like the rest but this seems unclear.

That seems debatable, and in my cynical mind probably influenced by manafacturers.

I got so bored of throwing out ones when the battery had gone. My dentist didn’t have any complaints last time I went, but guess we’ll see in a few years if it was the right decision!

Wouldn’t recommend. I had one, it gave up after a few months. They replaced it, and that did the same.

This is a sustainable toothbrush https://smol.com/uk/stories/smol-bamboo-toothbrushes

Creates endless pain.