Guys dont buy htc 830 dual mobile I tell you why .first and most important thing is that this phone cost around 18000 which is too much for this type of device.it comes with 2800mah battery which very less for a 5.5inch phone.
If you are using ragularly you need to charge twice a day .cameras low light performance is very bad .so guys I dont recommend you to buy this phone .totaly waste of money.