So I've looked through the specs of each phone and their isn't that much a difference other then a few tweaks, the 710 holds its own against the 620, you'd think when Nokia upgrade a phone they would make older phones, wellllll seem older! Because the 620 feels like a 710 with minor fixes, screen is the same, 710 has fm radio 620 don't, yes the 620 has NFC, a VGA front facing cam, and a speedier processor. Is their enough change in the 620 to want to make me change just yet? Someone please convince me so Lol