After searching, I can't seem to find any hands-on comparisons of the 520Z vs the 6102 (my apologies if they're there). Could anyone who has used both please comment on:

- RF
- Earpiece volume and clarity
- How it sounds to the person at the other end of the conversation
- Ringer volume

I understand that there are feature differences (bluetooth, etc)

See More: bluetooth Nokia 6102