This phone is most suitable and reliable . this is advance phone in this era. I really found this product more materialized and informative . battery backup is good but this is heaver and bigger than other phones. General public cannot afford this phone but this is designed for photographer and those who r apply lovers or photoholics . camera of this phones is extra advance and having all d feature of digital cameras . Full HDR screen and water proof phone . high class people love this phone because of its feature and high resolution . this have unique IP address and ois system of this phone is awesome .