First Smartphone HTC Dream (T-mobile G-1)

The first ever smartphone to run on the Android operating system was the T-Mobile G1 which was launched into the market in 2008.

The HTC Dream (also known as the T-Mobile G1 in the United States and parts of Europe, and as the Era G1 in Poland) is a smartphone developed by HTC. First released in October 2008, the Dream was the first commercially released device to use the Linux-based Android operating system, which was purchased and further developed by Google and the Open Handset Alliance to create an open competitor to other major smartphone platforms of the time, such as Symbian operating system, BlackBerry OS, and iOS. The operating system offers a customizable graphical user interface, integration with Google services such as Gmail, a notification system that shows a list of recent messages pushed from apps, and Android Market for downloading additional apps.

source- Wikipedia

specifications: The HTC dream got 192mb of RAM and 256 mb ROM. camera is 3.15 mp and the phone runs on Android OS, v1.6 (Donut) and got battery capacity of 1150 mAh battery..