Display
The Bird S590 is equipped with a 1.5-inch STN display supporting 65K colors and offering a resolution of 128 x 160 pixels. While it’s modest compared to contemporary standards, this display was adequate for basic navigation through straightforward menus and reading simple text messages. The STN display technology, common in early mobile phones, allowed for decent visibility of content under various lighting conditions, though it was not particularly vivid in comparison to today's screens.