I have the Sony xperia z1 compact and although some of the Sony apps are there, these can be disabled. No game on the phone thank heavens.
I love the great battery life especially in Stamina mode. Nearly 4 days.
Put a large (64 gig mini sd) card in the phone and go through all the settings to save as much to the card and you can store whatever.
Also if you have a mini usb to standard usb ou can connect a flash drive or even a hard drive.
I've had Sony /Ericsson for the past 12 years with the odd wander down the samsung path. BUT always end up back to Sony.
Hope this helps.