As of my last knowledge update in September 2021, the Xiaomi Mi 13 Ultra has not been released yet. Therefore, I don’t have access to any specific reviews or information about that particular device. Xiaomi regularly releases new smartphone models, so it’s possible that the Xiaomi Mi 13 Ultra has been announced or launched after my knowledge cutoff. I suggest checking official Xiaomi websites, technology news outlets, and online review platforms to find the most recent information and reviews about the Xiaomi Mi 13 Ultra.