Display
Equipped with a 1.8-inch TFT display capable of showing 256K colors, the U121’s screen, with a resolution of 176 x 220 pixels, delivers a pixel density of about 157 ppi. Although the screen-to-body ratio of approximately 22% is quite small by today’s standards, it was more than adequate for essential viewing during its time of release. This limited display quality underscores its positioning as a basic device, intended more for function than for viewing complex graphics or media.