That's the problem with non-nexus phones. The phone manufacturers load so much crap bloatware that they become RAM hogs. Was at a Sony center to fiddle around the XZU and dissapointed to say that screen transitions have started to lag a little already, while my nexus 4 still performs beautifully with easily 100 apps in the drawer.
The nexus 4 really is a superb phone. Been keeping it since it was launched on play store while I sold off the HTC one after a day of use.
Unlike iOS, android is still maturing hence the many updates to make the user experience more palatable and if the phone manufacturers are slow to react to it, the core framework is not optimized fully hence the increasingly poor user experience with time.
Android 4.3 is really very smooth and seamless, and makes the overall user experience a joy. RAM management is very efficient too. No need for any ram cleaner apps since 4.2
Reading about increasing negative feedback makes me want to reconsider the purchase of the XZU unless Sony is more efficient in rolling out android updates compared to the commercially focused, Samsung, HTC or LG. are they?
May probably just hold out for a Nexus 5 instead.
I used nexus 4 twice so I know what you are talking about. I think xzu smoothness is not that bad overall. Of course not as silky smooth as nexus 4 but not bad at all.