Xiaomi's Mi Mix 4 packs an under-screen camera in a ceramic body

Just days after Oppo unveiled its latest under-screen camera solution, Xiaomi is now launching a new flagship phone with a similar, if not the same, feature. The Mi Mix 4 is the Chinese company's slimmest ceramic unibody smartphone yet, featuring a 6.67-inch 2,400 x 1,080 screen that stealthily hides a 20-megapixel selfie camera underneath a near-indistinguishable patch of pixels — it's the same 400ppi density as the rest of the panel, albeit with smaller pixels and transparent circuitry thanks to advancements in AMOLED production.