The 6620 is a mobile phone created by Nokia, announced in 2005,[1] running on Series 60 2nd Edition and the Symbian operating system.

[2] It is a version of Nokia's 6600 smartphone for the North American market, with all the features of the 6600 such as the VGA camera, MultiMediaCard slot, Bluetooth and color screen, but with a change to the North American GSM frequencies, newer version of Nokia Series 60 v2 with Feature Pack 1 (the original 6600 had common Series 60 v2 without Feature Packs), the doubling of internal RAM, the addition of Nokia's new Pop-Port connector, the inclusion of stereo sound, and a new EDGE capability, effectively giving it double the download speeds of contemporary General Packet Radio Service (GPRS)-equipped phones.

Although not officially designed as a successor, it replaced the Nokia 3620 in the Cingular Wireless (now AT&T Mobility) lineup shortly after their acquisition of AT&T Wireless Services.

This phone usually came packaged with a charger, battery, 32-megabyte MMC card and USB cable.

The RealPlayer software can play back video and audio, and also files in MP3 and AVI format.