Design and Build
The Siemens ST55 showcased a compact design, measuring 99 x 47 x 22 mm and weighing just 87 grams. Despite its petite and lightweight structure, the phone felt robust and easy to handle, making it quite portable. The device housed a Mini-SIM card slot which was standard for its time. Its design included a 5-way navigation key, complementing the user interface for navigating through its features without a touch screen.