CMF Buds Pro 2 size and comfort

Hi. I've been considering buying the CMF Buds Pro 2, but wanted to get some pointers about the dimensions and fit.

I own a pair of Airpods Pro (1st gen) and they always stay in my ear (they are very secure), however, they always slip out a little bit and often cause me ear pain after ~10-15 mins of having them on.

Are the CMF Buds Pro 2 smaller in size than the original Airpods Pro? Are they more confortable in general?

I've already looked at the dimensions in both Nothing's website (for the CMF Buds Pro 2) and Apple's (for the Airpods pro), yet I feel that doesn't tell the whole story.