The Xiaomi 13 series is expected to debut soon with two models – Vanilla 13 and its Pro sibling. The Ultra variant would join their ranks later and the mentor would notice Digital chat station Share some key specifications of the Xiaomi 13 Ultra camera setup.
Based on the new information, the Xiaomi 13 Ultra will feature a quad-camera setup with the 1-inch sensor (Sony IMX989) from the Xiaomi 12S Ultra retained. The new bit is gimbal stabilization and PDAF.
There isn’t much info on the remaining sensors – we get PDAF autofocus confirmation on all four sensors and a dToF (live time-of-flight) sensor. The Xiaomi 13 Ultra is likely to retain the 12S Ultra’s circular camera housing.
source (in Chinese)