This is phone is quit amazing because of stylish exterior design and waterproofing feature. I like this phone because of its features and dislikes this phone because 2gb ram I want it least 3 GB ram for processing. camera quality of this phone is also superior(front 5mp and main camera 13mp) .but one problem is that the battery, it drains faster and it has only 2300 mAh battery so this is the problem.overall this is good phone for professionals.Sony is very popular brand and I like it.Sony m4 aqua dual, you are just amazing .