Interesting to see the MX Master 4 leak! I've been using the MX Master 3 for a while, and while I love the ergonomics, I was really hoping the new version would finally bring 1 kHz polling. The lack of a USB cable still feels like a small miss too. It's a bit like when I play crazy cattle 3d —things mostly work fine, but there's always that one chaotic detail that makes you laugh and wish it was just a bit smoother.

Could this bullet point maybe be pointing to a higher polling rate?

"Enjoy 2x powerful connectivity with a USB-C dongle, an advanced radio chip, and an antenna optimized for faster, more powerful and reliable performance"

This could simply be pointing to the USB-C version of the Logi Bolt dongle, but I find the language interesting here (2x more powerful, advanced radio chip, faster, etc.). It all sounds like potential improvements over their existing dongles, but perhaps also just a translation issue?