Great part of the leaves almost nothing to be desired. That 4G data connections (LTE) are not possible is a pity, but as the rates which are always the allow unaffordable expensive, it comes also from not really. View (glance) but really lacking, the information system at the lock screen would not have made that much more expensive smartphone and would have been a big plus. Also disturbing that the data connection whenever possible to "E" (Edge, 2G) is demoted and even if then data is retrieved, is switched back to 3G only in extremely strong signal. If you want to quickly re-3G (HSPA + which the phone can wonderfully), you have to turn off the setup and re-enable 3G, but does not last long and he returns to 2G mode. The only explanation would be that this battery life is saved. And you have to say for a smartphone with dual SIM and so large a very good display, the battery life is phenomenal. I've been using it on average, so do not play etc. but often the Internet etc. and get 3 full days out with a charge. Something I know no other phone.