I have a Obi sf1 .It is nice mobile, it has slim body and attractive look , this is one of the best mobile one could get in affordable price .Apart from it’s good looks this phone has a 1.5 GHz qualcom snapdragon 615 octacore processor and android lollipop os which makes it pretty fast .it also gives dual sim function 4G( LTE) and 3G as well. It has 3000 mAh battery which gives a good backup. It also have lcd ips disply with corning gorilla glass4 badly strong.It also have a awesome back camery of 13mp and a front camera of 5 mp both with led flash. This model has 2 variants .
One with 16gb internal memory and 2 gb ram.
Another with 32 gb internal memory with 3 gb ram .
Both variants are excellent .