It all depends on how much use it, though anecdotally, battery life with the 950 is considerably worse than the iPhone 6S/6S Plus. I took mine off the charger at 6:00 a.m. today as I was traveling again for work. With relatively light usage at 50 percent screen brightness (and automatic brightness enabled) it was down to around 30 percent by 2:00 p.m. Keep in mind, this includes about five hours of flight time with it in airplane mode in my pocket playing locally stored music. Needless to say, I'm not pleased. My buddy's two-year-old iPhone 6 seems to last much longer despite getting used more. Also, his phone is never hot or even warm to the touch like this piece of junk is.