Stock charger may charge slow bt I am getting very good results with my ambrane power bank. It charges near 1% per minute even if phone is in use.. Sony z series phone's charger also gives noticeable boost. As far as backup is concern, I am easily getting over 1 day with a full charge.
For the ones who say auto brightness option is removed, just activated adaptative brightness from settings display. Works as an auto function
Everything is good,but there is only one problem battery drain soo fast and take too much time to charge completely.0 to 100% its take full 3hours. and battery drain soo fast.expect this every this is good
Guys,I bought this phone last October and its amazing.even with my heavy use,I still manage to get about 2 days battery charge
Camera is good
Front camera is spectacular
Speaker quality is good
It feels real nice while holding,has a nice grip
The only problem is that,there are a few bugs in the system.
Sony has said that they will take care of this in the next update.
And also later this year c4 will get android marshmallow update
So people who are planning to buy this,don't hesitate, c4 is awesome!
I got one on September 15. Worked fine about 2 weeks... This is the most unreliable phone I ever owed! First, the LCD started to... MELT!!! initially a small 1/4"x3/4", now it grow to 1/2"x2"!!!
Then, the touch screen started to have horrible errors! I'm touching 2, it's dialing 7! I'm touching 4, it's dialing 266!!! Even more, I'm touching the 3rd icon on the 1st row, the cell activates the 2nd one on the 4th row!
Don't even want to mention if I want to write a text or email... just no way!
I bought this very trustful, great disappointment. I believe this is a cheap chinese device, just branded "Sony".
The best thing about the C4 is the front selfie camera with a flash light. And it is as reliable as the z series.
The problem is one, The battery drains faster.
Features to be included are, water resistance. That's what i think sony owes the C series phones.
I'm happy i bought it though.
jaan, 25 Jan 2016c4 or z2 or z3 which on is betterZ2. Much cheaper than z3 with same specs. Battery n cam performance is better in z2 compare to z3. C4 is totally different league. Its much cheaper than z2,z3 n gives decent performance.
Good Phone..Performance is good....
Dont look down towards NEGATIVE comments...If u want to USE the phone u can go for it...this is not for who are mechanics of phone...:)
Screen is very soft and scratch resistant..
Brand is very good...SONY....
Sound quality is very good...
Only one...that is its BATTERY...:(....Drain very fastly...but at the end of day usually we charge every phone..so with this this is not a big deal...
so overall very good phone...just enjoy it and feel the power of SONY...
jaan, 25 Jan 2016c4 or z2 or z3 which on is betterZ3 is very successful phone. Better than Z5.
Anonymous, 24 Jan 2016Which music?? In earphones or on speaker??in earphones
i use jbl t250 si. earphones coming with this phone is not so good.
i have been using this phone for over 3 months and its quite good. don't get confused with comments like this is crappy phones blah blah blah...its just that they are having issues with their particular phones. typical c4 is great . if you want to get a correct opinion refer to professional reviews ,,
Not recommend this phone.
My previous phone is Xperia ZL, its a very good phone. That's the reason I don't mind upgrading to another xperia phone. However, I am totally disappointed to C4. After 2 weeks of using it, here is my comment for this phone:
1. CPU performance, when I play some games on my phone, not that smooth, some pictures cannot be load too.
2. buggs, phone will goto sleep mode even I was playing game or browsing facebook.
3. camera. no matter, how I clean the lense, picture still bury.
I send my phone to sony for repair, but they cannot find any problem on my phone.
After 5.1 update i can't see other languages letters what should i do?
sumanth , 23 Jan 2016I have also facing dis problem in my new c4 hw to clear dis problemI had also faced the similar issue but i found the root of the prob. Remove any screenguard or any screen protector and then try calling. The issue must have been solved cause your screen cover was blocking your ear proximity sensor.
sumanth , 23 Jan 2016I have also facing dis problem in my new c4 hw to clear dis problemYour screen protector is blocking the proximity sensor (left of the Sony logo).
sonu, 21 Jan 2016How's the battery performance and is there any heating issue in this phone. Thanks in advance.Battery backup is good, lasts a day sometimes more, no heating issues