The Samsung SGH-i900, also known as Omnia I or WiTu, is a smartphone created by Samsung Mobile. Announced in June 2008, the Omnia was launched in Singapore in mid-June, available in stores on the 20th of June, and in the rest of Asia in July. For some parts of Europe, it was launched in August. It was made available for the United States in December 2008 through Verizon Wireless and for Canada in April 2009 through Telus Mobility.

The Samsung Omnia II GT-I8000(H/L/U) is a multimedia smartphone announced at Samsung Mobile Unpacked on June 15, 2009. Earlier Omnia II releases run Windows Mobile 6.1, however they are upgradable to version 6.5 Professional. There is also an unofficial and experimental Android version available. Verizon is the official US carrier for this phone and released it in December 2009.