Demo always laggy one. Try ask the sales assistant to factory reset the phone if possible.
Beside..i believe there's a new firmware updates that improve the phone stability/performance.

This post has been edited by waveweaver: May 5 2013, 09:30 AM

see kernel or partial wakelock?

always?
I'd tried S3, Xperia Z, HTC One, note 2 at the same shop all very smooth wor

This post has been edited by sukhoi37: May 5 2013, 09:35 AM

Depends on how many ppl try the demo phone with all sort of apps and usually just left it running without bother to exit/close it properly.

Partial wakelock

ok...thanks...just installed the app

read in xda some of the screen got problem. so far any1 of u got screen problem?

And what screen problem is that..?

quote "...scrolling dark greys on blacks smudge/smear purple. A test for this is in settings, on anything grey if you slowly scroll up and down the grey bits go purple."

quote "..I have this annoying yellow tint on my S4's screen, but disappears when the phone is tilted over 45 degrees. Is this faulty ?"

just some of the post i read.

Hmm..i dont know how to test the first quote but no problem for me on the second quote. Maybe you need for others to response in order to get the actual answer.
So far this S4 have a best screen on all Samsung phones.

ok thanks.

Lower clock speed but higher performance = better efficiency = GG

thanks to the 4 x A15 cores. The other 4 little cores A7 are used for power saving. Samsung did well in being first to try use this little.BIG tech from ARM. Unfortunately currently the implementation is not complete. The switching between A7 and A15 is done in a crude way. Its either all 4 running at A7 or all using A15. This technique similar to the little fifth core used in tegra 3. Although little.BIG actually can switch them independently depending on loads on each core. Imagine all 4 A15 running, power drain quickly. If you are heavy phone users, you may see the effect.

There are reasons why some XDA developers don't like tegra 3, and in this case the S4 implementation of little.BIG and Samsung lack of source code update, etc. Just don't dismiss it quickly without understanding it. Although I know lowyat forummer like to discuss casing and wallpaper more...

Read more:


http://forum.xda-developers.com/showthread.php?t=2258519

Firstly those quotes is only by one user and does not represent the majority
Go and assess yourself - plenty of demo sets around
I don't have such issues at all on my set

FYI, NFC dont consume much battery at all. If you dont use it, it will be on stand-by mode which means it consumes almost zero of your battery juice.

I, for one, like the discussion on hardcore CPU stuf.... please carry on

Some article I read conjectured that the kernel handles the core switching, it was yesterday. So we *could* end up having all cores firing but you may end up with 1h SOT

i tot they show video showing tat the cpu they pair 1 a15 with 1 a7, so got 4 pairing, this makes more sense if it works this way.

Anybody using alternative launchers like nova or go launcher? Does it improve performance and battery life?

This is nothing new. Seasoned galaxy users would already know this trick to improve any lag if it bothers you
The author over exaggerated it saying it improve lag 10 times

it is not lag, it is transitions...

Does anyone have problems with the sensor? Was asking a Maxis staff abt the S4 and he said this batch has some kinda sensor problem.