Design and Build
The Siemens SL10 sported a unique sliding mechanism dubbed the "ProSLIDE system," which was a hallmark design feature of the phone. Its physical dimensions—129 x 50 x 26 mm—and a weight of 138 grams contributed to a robust profile that was both substantial and portable for that era. It utilized a Mini-SIM format, which was standard at the time. The anthracite color gave it a sleek, business-like appearance that presumably catered to professional users looking for a reliable and stylish device.