What is a modern-day HP-16C?

[Tinue]

Thanks for all the answers! Yes, what I am looking for is a dedicated calculator for binary/hex only. Dedicated keys, that are labeled for hex use, just like the HP-16C offered. I know that all of the HP-16C's functions are present in many modern calculators, including the HP Prime. I may be wrong, but I believe there isn't a menu for hex functions on the Prime: I have to scroll through the full function list. Compared to a simple key press on a dedicated calculator that's quite slow.

Based on the answers so far, such a calculator is no longer produced. The best I could get is apparently an HP 30 with new firmware (if I understood this correctly).

Again, thanks!