This thread is going to hit the "hotly debated" in no time flat for sure, lol. My take on this is that it's all relative. My Padrino was a shoe repair man, and I'd always go help him down at his shop on the weekends when I was in high school. I can still remember to this day that people would come in to pick up a pair of shoes that he had put on new heals or soles on and the standard question always was "how long will they last now" and the standard reply from my Padrino was "take them home, keep them in the box, put the box under your bed and they will last forever!" He was a big joker, so it wasn't said in a sarcastic way, but his point, which applies to this thread, is that if you use things they are going to get "worn out" or last less. If you are an avid gamer, use video chat often, write a lot of emails, use it for work, big Wi-Fi user, listen to a lot of music, or watch a lot of videos, or are a HEAVY texter, I'd say that your battery is going to last a lot less. If you only use your phone to call, a few What's App messages a day and little more, I'd say you are going to get a lot more mileage out of the battery. I'm somewhere in the middle of both, and if I wanted to stretch it I could probably charge my phone every two days, but I almost always charge it at the end of everyday just to make sure I never run out when I might really need it. One last thing is that it also depends on the amperage your battery has. The more "juice" it has, the longer it SHOULD last!