Battery backup is good.good to use, camera is excellent to short sound system is good all over all things is good in phone from last 3.6years I am using this phone.I got this phone in flipkart by 15.5 k(*¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥£¥£¥£¥£¥£¥£¥£¥£¥£¥£¥£¥£)
thanks nokia.