Introduction
The Siemens C65 is a mobile phone that was launched in March 2004 and has since been discontinued. It stands as a representative of the straightforward, function-focused devices prevalent in the pre-smartphone era. Despite its limitations compared to modern smartphones, the Siemens C65 offers a nostalgic journey through its simple features and design that catered to the basic communication needs of its time. This review will explore various aspects of the Siemens C65, focusing on its network capabilities, design, display, memory, camera, sound, connectivity, features, and battery performance.