Oppa f1s has bigger display with 5.5inch, which is 720p display
and it is running on android version 5(lollipop)
it has octacore processor with the clock speed 1.5ghz
it comes with inbuilt 64gb of rom and 4gb of ram which can be expandable upto 128gb
it has 13mp rear camera and 16mp front facing camera which is suitable for awesome selfies
actually it was selfie phone .
it support 4g, 3g, and 2g networks
it has 3075mah battery