Display
Focusing on the display, the Siemens ST55 featured a TFT screen that displayed 65K colors. With a resolution of 120 x 160 pixels, it managed an adequate display for browsing through menus and reading messages. The screen's ratio was 4:3, lining up with the aspect ratios of the TVs and monitors of the era, though by today's standards it would be considered small and less vibrant.