This device sound, display, camera and other features performance is good.
And this devise easy of use. Looking great. but in this device mostly show problem is software and battery.
I have a blackberry z 10 and this device shut down in 20% of battery. And mostly this device show software problem https://bberror.com/bb10-0015.
but in this price this device is so nice .
and this device part is available in low price.