Battery life is extremely dependant on usage. It varies so much from person to person its hard to compare. My phones screen is on 4+ hours a day and 2-3 hours talk per day. With GPS nav and browsing and streaming it gets used.
When I tried the iPhone it was begging for the charger by lunch. Unacceptable. I ended up with the 3300mah RAZR MAXX HD.
I don't mind the iPad, but sheesh, a LTE phone with a 1400mah battery....math.