I have the Mi 11 pro, I didn't pay crazy money for it, I found a good deal on a China website, now to answer this question, the phone is very similar to the Mi 11 Ultra but with a slight worse periscope camera and obviosuly no small screen on the back.
Battery life is excellent, phone charges really quick and is not as heavy as the Ultra but this phone never launched globally so it's only available in China so be ready to unlock the bootloader and flash the phone.