I've had my new 6+ a couple months now I think it is, or almost, but I have not been too impressed with its battery life. I don't use it heavily and I keep my brightness down and do all the battery saving adjustments that are always suggested, but it seems my 5s batter was longer lasting. Since its new do I need to do the thing where you run the battery completely down until it shuts off to maybe see if that does anything? I was just expecting better battery life than I have.
Sent from my fantastic iPad Air!