2 days in this age of Smart phone usage is truly the exception, not the rule. I want like 20 hours of time with no "Your battery is on life support, prepare to lose everything" message popping up. From that particular low bar, I am very happy with WP's performances. Both Titans 1 & 2 (which has LTE, though we do not live in an LTE area so I can not grade it's battery life) and my Focus S get well over a days use. I expect no less from the ATIV with a bigger battery.
Originally Posted by saintforlife
Android has many advantages, battery life is not one of them. WP as a rule lives longer on a charge. In most devices, it isn't even close.