Hey guys if you want a phone with long lasting battery, don't buy this phone. I bought this phone and was disappointed by the battery life. my lenovo p70 which is almost 1 year old was better in terms of battery life. also my acer z630's battery life was amazing. I only bought this k4 note because of the twin speakers and the theater max feature. i'm waiting for the acer liquid zest plus to be released, which has 5000mah battery. k4 note is all good except the battery.