So to start with, this is my 3rd walkman phone.w800-> w810i-> & now w830i(yes, i post it under w850i, bcoz if you browse google u wont c much under w830i, since in many countries where 3G network is available, w850i rules)Only difference B/w w850i & w830i-w850i is 3G enabled(@ present no 3G coverage in India, will come soon) But NO EDGEW 830i No 3G, but DO HAVE edge, Since W 850i, being a 3G phone, has an additional VGA camera in front, integrated into front speaker grill, its needed for video conferencing via 3G .everything else w830i has a separate video player, which is a lot better (not even comparable with w810i! video playback, much smoother playback!)request-pls DO NOT compare w850i with w810i/k790.bcoz w850i is SO unique!