Sony's Xperia X Performance is a confusing phone
 

If you need another reminder that Sony is hurting in mobile, just take a look at the Xperia X Performance. It's the most powerful version of the electronics giant's new phone lineup, but rather than a full-fledged successor to the Xperia Z5 (itself a...

http://www.engadget.com/2016/02/24/s...ance-hands-on/