Ogo is a handheld, battery powered, wireless communications device, released in 2004, that provides instant messaging (IM), text messaging, and e-mail for subscribers to America Online (AOL), the Microsoft Network (MSN), and Yahoo!. The unit is contained in a clamshell case measuring approximately 4.5 x 3 bx 2 inches (11.5 by 7.5 by 2.5 centimeters) when closed. It weighs about 5 ounces (140 grams).
The main features of Ogo are a 16-bit color display, a full keyboard, a lithium-ion rechargeable battery, up to five e-mail addresses, easy activation, simplicity of operation, and geographical coverage similar to that of the major cellular networks. There is a monthly subscription fee, but no contract is required. Ogo is marketed especially to teenagers and young adults.