Anonymous, 09 Feb 2016wow! great phone , after updating to 5.1.1 the performance increase dramaticly .thanks Sony Lucky you, after updating to lollipop 5.1.1 from Kit kat 4.4.4 then phone started flickering, its so annoying .
Priyanshu, 10 Feb 2016Please confirm whether there is flash or not in thia phoneNo flash
Nikhil, 08 Feb 2016Its the best,better than iPhone,note5! .only camera is not goodRight ....better than iPhone except camera
My z ultra's power button is not working.. Completely out of service. And volume up key is doing power button functions. Please help me users..
wow! great phone , after updating to 5.1.1 the performance increase dramaticly .thanks Sony
very2 nice phone,nice for heavy gaming the display is hd and clear super good phone
Good sides: no lag after nearly 2 years of use, battery lasts all day, metal/glass body looks just superb, screen size;) , this phone is just perfect for web browsing, games, movies etc.
Bad sides: Camera( only day time is ok ), no flash, speaker is not too loud, screen when even bit wet gets funky and when damaged( even tiny crack) gets totally unresponsive, the crack from tiny gets bigger and bigger with every touch. Got 2 phones damaged by dropping, both repaired under insurance but all data lost. Just set all data ( contacts, pix etc ) to save in sd card or cloud to prevent loosing it.
darko, 25 Jan 2016when i am making calls the screen go off and i can't turn it off had same problem, proximity sensor is faulty, if your device is still under warranty just get in touch with sony and they will repair it free.
AnonD-490487, 27 Jan 2016guys,this phone 4g support or not plz tell me...Yes this does support 4G but it depends upon the network you are using, I am on the 3 network but it's quite a weak 4G at the moment especially in my area in the UK.
I am so happy to have this phone again.. After selling my black z ultra to afriend last year and buy a new model new released phone but I am not satisfied my current phone now.. It freezes,lag,very slow internet via 4G LTE so i decided to buy again this phone and now I'm relaxed no problem about this phone asphalt 8 is very smooth in this phone I really loved this monster phone I am satisfied with the performance of this phone it's 2 years old phone but still the best I strongly recommend this phone. I will stick this marshmallow to Sony Xperia z ultra wow amazing phone thank u so much Sony for making this 6.4 phone very very very satisfied user.
I used LG G4 after selling this monter to a friend Lg G4 joy heats up so much I miss my ultra no problem with that phone
darko, 25 Jan 2016when i am making calls the screen go off and i can't turn it off Are you using screen film or something that cover the proximity sensor? Clean the screen. And run diagnosis on settings
it's been an year since I bought this phone and can't complain about anything...this thing is just awesone....takes everything u throw at it....really a beast..camera is the only disappointment bcuz it lacks a flash and hence consider it as useless at low light scenes...
but no complaints about the performance....I really recommend this for people who are good with entertainment....also its cheap now...