The Xiaomi 12S Ultra’s camera is a remarkable achievement: it’s one of just a few smartphones ever to offer a 1-inch-type sensor. Relatively speaking, that’s a huge sensor for a phone, and bigger sensors generally lead to better image quality.
Pitting the 12S Ultra side by side against some of the current class leaders in smartphone cameras, there are clear situations where the bigger sensor makes a difference. But more than anything, it highlights just how advanced imaging systems from Apple, Google, and Samsung are, even with smaller sensors. The future of mobile imaging won’t be won with better hardware