Not even close to a day. Had all the previous models as well and pretty much none of the units were able to last throughtout the whole day. I do use my iphone 5 quite often, with push being on, bluetooth and wifi off, and location services on sometimes I get about 4.5-5.5 hours of usage. there were times when I did get over 6hours, but there were also times when I got 3.5-4hours. My brightness is at about 35-40%. This is my second iphone 5, first one was identical in terms of battery-consumption.