I'm not asking you to believe it. I'm simply stating facts.
I'm with my friend now. Her SIII battery is currently on 70% having been taken of charge 9 hours ago. It's now 6pm my time. Moderate use, calls, texts, surfing. This Will last until tomorrow night with the same usage. 3G on and wifi.
My 4s was taken off charge 6 hours ago, it's now at 64%. I have no Bluetooth on. No 3G and have only just put wifi on now. I've made 8 short phone calls and sent a few texts that's all.
clearly she has a super juiced s3....took my 4S off charge at 5:15 am.....it is now 1:00 pm and I still have 84%