My S3 currently runs 4.3 and on standby the battery lasts very well but when I use it for about half an hour to only watch YouTube or check email the battery will already drop almost 10%, even with airplane mode on and wifi on and all the other gimmicks off like smart eye, etc. This never happened on 4.1.1. And now I have 4.4 OTA update available. So that brings me to my question, for those who are on Sprint and have updated theirs to 4.4, should I do it, how is battery life like on 4.4. Again, I know it all depends on how much you use it but I use my phone minimum to moderately and the battery rapidly drops. Is battery life on 4.4 significantly better than 4.3 or is it much worse?