i think this z4 already good why?? beacause there is nothing different bettween full hd and 2k displays the only 4k display need in tablet, pc and tv
the designs is nice nothing wrong with it and i doesn't like every smartphone brand design like samsung or iPhone it will make sony worse because maybe people will buy Samsung or iPhone rather thn sony because of its same design
let sony with its own signiture design omnibalance or arc design
the only Sony need to improve its smartphone is software, camera capabilities and new feature without sacrifice its performance
A non-flagship smartphone with a flagship name...
Sounds like blasphemy to me.
The RAM Shoud Have 4GB..And Cam Front Should Have 10 MegaPix Back 20.7 is good and duel sim should have been there ....... :(
Thank god this phone is exclusive to Japan, we don't need this copy/paste crap phone here.
Bring me Z5 sony
arraarrarh man check this out,lg g3 5.5"qhd and 3000 mah,and xperia z3 5.2" fhd and 3100 mah watt the f. wait for crapdragon 820 and you will be happy
sony xperia z4 should of (5.5)inch screen with (441 pixel density) and battery should of (3500 t0 4000)mah battery
iqbal.fiery, 21 Apr 2015it's time for quad HD...600+ppi no its not time for quad HD. The f you need qhd on 5"???
michael 88, 21 Apr 2015From Xperia z to z4 using the same screen resolution....FHD is very outdated technology for a ... moreFull hd is great for a smartphone more resolution is a useless samsung is making a wrong decision there.
What sony needs to improve is the software and additional features screen is great =)
Nicky24, 21 Apr 2015Sony introducing other versions in september in z family.yes and it will be the same freaking desing with just some upgrades
this phone is a fail they are all the same z1 z2 z3 z4 nothing change just a better processor as i said not that better since it overheats the battery decreased the same screen resolution there is nothing special on this phone only a die hard sony will think that this phone is the best of 2015
michael 88, 21 Apr 2015From Xperia z to z4 using the same screen resolution....FHD is very outdated technology for a ... moreWhat a shame these paid competitor Marketers keep complaining about same issues on Top Notch SONY cells! Haha
From Xperia z to z4 using the same screen resolution....FHD is very outdated technology for a premium phone...shame on you Sony as giant technology company...Samsung note 5 are preparing using 4k screen if this real sony are going sales off their mobile division...
darkraver, 21 Apr 2015How delusional :-) Funny...G3 and note 4 really great sales compared to sony phone...more user prefer 5.5 inches screen compared to z3 only 5.2inches.
anu97awesome, 20 Apr 20151440p and 1080p cannot be differentiated untill with a keen look.i was disappointed because le... moreLol,for me from z1 to z4 still the same screen quality not any improvements...QHD screen are more deep colour compared to FHD.example s5 vs s6