If I turn off the background sync, it can last 3 days without charge for me.
I usually get 2-3 short calls(1-3 minutes every call) a day, and browser web/email 10-15 mintues/day. Whenever I put back my phone to the pocket, I turn off wifi. My BT is always on because my car has BT. This kind of usage pattern I only need charge once for every 3 days.
The best part is its display. Black is 100% black(not dark gray). The only thing that I want it to be better is its resolution. I hope Samsung can have 4.3-4.5" 720P Super AMOLED+ display soon. When a phone with that resolution using the Super AMOLED+ technology, LTE, and slightly faster CPU with same power efficiency, then I don't need any upgrades in the next 3-5 years, like my laptop PC.
