Introduction
The Samsung i400, released in 2008, represents a glimpse into mobile technology during a period of rapid evolution. As a mid-range handset of its time, the i400 blended functionality with the emerging sophistication that defined devices of this era. Despite its eventual discontinuation, it holds a place in the evolutionary lineage of mobile phones for its design and features. This review delves into various aspects of the Samsung i400, offering a detailed perspective on its capabilities and limitations.