Display
The device comes with a main UFB display capable of showing 65K colors, a decent feature for a phone of its time. The main screen resolution is 128 x 144 pixels, which provides basic graphical display capabilities suitable for its simple interface and functions. Additionally, the E400 includes a secondary external OLED display with 256 colors and a resolution of 96 x 64 pixels—useful for quick notifications and time display when the phone is closed.