The thinnest phone in 2019 is the Vivo NEX 3S 5G, which is only 6.8 mm thick. It features a 6.89-inch AMOLED display with a Snapdragon 865 processor, 8\/12GB of RAM and 256\/512GB of storage, a 64-megapixel quad-camera with a 16-megapixel front-facing camera, 5G network support, and a 4500mAh battery that supports 44W fast charge and 10W wireless charging.