I bought Lenovo P780 two weeks ago, after some research on the internet and have found it pretty satisfactory. The specs are good enough and can be checked on their product site.I am overwhelmed with the 4000mah battery support. I use the phone for calling(read high), and my 3G net usage is also always on, like Whatsapp, Facebook etc, plus, obviously this is a Dual Sim Phone and some or the other application is running all the time.With all this happening I stand at 55-60 percent battery usage at the end of each day!
Apart from this they give you an OTG cable with which you can connect your pen drive and do your stuff. Plus, being an Quadra Core Phone the working speed with multi functions is also quiet good.
Overall this is good value for money gadget.
Recommended!