Display
The MX-7990 offers a primary display capable of presenting 65K colors with a resolution of 128 x 128 pixels, organized in 8 lines. Although modest compared to contemporary screens, it was suitable for the basic graphical requirements of its time, like viewing simple images and text. It also included a secondary external OLED display, which offered users quick access to essential information such as time and caller ID without the need to engage the main screen.