Design and Build
The Motorola d520 features a robust and slightly bulky design, typical of mobile phones from the late 20th century. With dimensions of 140 x 50 x 27 mm, it fits reasonably well in hand, although its 170 g weight makes it rather hefty by today's standards. The phone accommodated a Mini-SIM card and had a monochrome graphic display that could show 2 lines of text with fixed icons, offering limited but sufficient information visibility for its time.