Infinix has launched Smart 3 Plus, a 6.21-inch HD+ 19.5:9 aspect ratio screen with 88% screen-to-body ratio, is powered by MediaTek Helio A22 12nm SoC with 2GB of RAM, runs Android 9.0 (Pie) with XOS 5.0, has a 13-megapixel rear camera along with a 2-megapixel secondary camera for portrait shots as well as…