rainmaker12: wit all These so called Suppliments, Wat is d significant changes in speed n camera? Sensor no sensor, cpu no cpu, GPU no gpu, camera no camera, screen no screen, are these changes major? U cant even distinguise between them, if Not screen size. These changes arent enormores so abandon s3 4 s4. xcept u want it 4 luxry. S2 to s3 we saw big difference. Yes! its worth d upgrade..... Major Feature arent drastically upgraded. Wich s processor,camera,ppi nd overall physical look. If u cant tell speed diff. nd camera quality, y d upgrade. s4 camera Feature r just dere to confuse d public. We take better pics wit our s3 too witout dose features, so..... y waste d cash............ If Not for TRENDS. ('IM using d latest'), notin more.

Deblow: He who wears the shoe knows where it pinches. You cannot possibly get used to a phone or know all the features of it by merely reading the abstract on the net, via adverts or just picking a friend's phone and running ur fingers on it for a few seconds or even minutes. You need to actually own the device urself. You've got to own a SGS3 and S4 for a detailed, objective and credible comparative analysis of the two powerful devices. I own both and by virtue of that I believe I am in a good stead to speak authoritatively on both and with my vast experience in phone use. To compare S4 with S3 is to say the least a gross mismatch. comparing S4 with SG Note 2 would have been a bit more appropriate (becos I own this device too). S4 is light years ahead of S3 in every sense of the statement and that is the reason I desperately want to sell off my s3 to use only the note 2 and s4. The 2Gig RAM, 13 megapix camera, increased battery power, screen clarity and many other innovative features of the S4 can NEVER be replicated in the S3 variety via a mere upgrade or software update. Except someone is telling me that u can update nokia asha to function exactly like the lumia variety thru same update!

frgy_:

WOW, so your S3 is going to get a 4 inch screen via update? An infrared sensor on the top and one in front to detect your hand gestures , a bigger battery, a 4 inch screen you can operate with gloves too? Even a faster processor, a larger RAM, and a 13 megapixel camera will all be sent to you via updates
What a lucky guy you are

Overlord999:
S3 and note 2 are almost Identical in specs, I don't know why ur trying to imply dat note 2 is way better. Stop giving pple false ideas.
Also ur Last sentence was full wit ignorance. So d difference between s3 and s4 is lyk comparing asha(dumbphone) and lumia. Wtf