The Nokia 6650 fold (also known as the 6650d) is a Nokia smartphone announced in March 2008, running Symbian OS. It is a Hex-band unit using GSM 850, 900, 1,800, and 1,900 MHz networks and UMTS 850 and 2,100 Mhznetworks (WCDMA/ HSDPA). Also noted as a quad-band clamshell 3G smartphone, it was released in June 2008. It was sold through AT&T Mobility in the U.S. It is AT&T's replacement for the S60-powered N75. It is manufactured in three colors, metallic silver, black, and red.