Introduction
The Pantech Duo was a unique addition to the smartphone market when it was launched in October 2007. At a time when mobile phones were beginning to adopt more advanced features, the Duo stood out with its dual-slide design and integration of a full QWERTY keyboard. Developed by South Korean manufacturer Pantech, it aimed to cater to both business users looking for a practical device, and those seeking novelty in their mobile communication tools. Though discontinued now, the Pantech Duo serves as a fascinating glimpse into the design and technological tendencies of mid-2000s mobile devices.