Very efficient smartphone but, if you plan buying one, check the 3G and the LTE 4G frequencies in your country and those of your operator to avoid the pain of being stucked in the GPRS bands. Needs some kind of expertise to adapt it to an European use. There is an active community of users/modders/developers dedicated to this model but it is in Vietnam and you will have to use translations to get what you want and to adapt it. I did it so you can. In France, to get a similar powerful smartphone, you will have to pay between 500 and 600 Euro, and you will pay for this one between 180 and 250 Euro abroad and you will have the advantage to have an original phone. I am truly and completely satisfied by this phone and my next one will be an Iron 2. Great phone for power users.