I am sony xperia m4 aqual from last 1 year. Xperia m4 aqua is a best mobile from sony communication . These are some features of xperia m4 aqua its come with 2 gb ram, 16/8gb intarnal memory , 13 mp secondary camra and 8 mp fornt camra with ar effact . Its have 2400 mah battery . The battery life of xperia m4 aqua is not too good as now days many mobiles come with. So sony xperia m4 aqua is a good mobile phone from sony communication company. But the only problem of this device is heating and I think its not good. Other wise its a good phone.Thank you.