Introduction
The O2 XDA Stealth, announced in September 2006, embodies the early era of smartphones, blending personal digital assistant (PDA) functionalities with mobile communication capabilities. While it has been discontinued, it remains a noteworthy example of the technological progress in mobile devices during the mid-2000s. This review will delve into the phone's key features across its design, display, performance, camera, connectivity, and additional functionalities.