Xiaomi may have just dropped the mightiest camera phone ever made in the Xiaomi 13 Ultra. I've been using one for a week and think the competition ought to be looking with great interest.

Now, Xiaomi is trying to improve on that with the Xiaomi 13 Ultra, a smartphone tailor-made for mobile photography enthusiasts. More portable camera than phone, the Xiaomi 13 Ultra has four Leica ...