Must-haves:
Making calls and texts
No bigger than my Samsung Galaxy S2
MicroSD card slot
Front camera (only with 620, 625 + 630 have no more)
Positives:
- It feels good in the hand, slightly thicker than the S2, but perhaps because of a flatterer.
- Windows Phone splits the experts. To me it is stable and thoughtful enough to leave my androids are times left
- The most important apps are available and in some cases even better than Android (Nokia Here, full text scan with subsequent editing in Office, built-in music recognition (Shazaam) and translation ...)
- Battery lasts at last longer than 1 day (my "record" when usage is low (6 e-mail accounts every 30 'sync via 3G) is 2.5 days) has leveled off, the battery performance at 1.5 days.
- Update for 8.1 is planned (and unofficially already available)
Negatives:
- Do not have full File Explorer on board, everything can be currently done only with the PC.
- No mp3 as alarm clock ring tone (function calls, etc)
A strong buy recommendation for all who do not want to spend 500, for features that nobody needs.