Just my best after having a smartphone iPhone 4S and Lumia 920. Benefits: - Superb quality screen - Autonomy of all records, takes two days. After a day of mails, surfing, telephony, podcasts, sharing internet and 1 hour of GPS, I have in the afternoon half of a small battery. After 1 hour of GPS, it was better to charge the iPhone;) - Standard microUSB connector - MicroSD memory card slot. - Induction charging
Disadvantage: - Perhaps the size priori but it is in fact his big advantage. I was afraid he does not fit in my pockets but he returned in all my pockets and especially great in those jeans :)