The Xiaomi 12S Ultra surprised us with its 1-inch camera sensor and Leica co-branding back in July, but it turns out that the Chinese brand was working on something far more ambitious at the same time. Earlier today, the “Xiaomi 12S Ultra Concept Phone” was unveiled with an appearance almost identical to the namesake flagship device, but with a second 1-inch 50.3-megapixel sensor…
