Firstly I want to share balckberry z10 battery back up is very weak battery capacity is 1800 mah looks is nice , , , then sound quality also fine style design also good there is one more problem in blackberry z10 in voice network mostly showing emergency mode now I put joi 4g sim only data is working but voice call not working in this mobile phone other function and features ok if we compare as a price it is very costly if compare with battery back up also
