▁and ▁manufact ured ▁by ▁L G ▁Electron ics . ▁It ▁is ▁a ▁part ▁of ▁the ▁second ▁generation ▁of ▁the ▁product ▁range ▁called ▁L G ▁L - Style ▁( ad vert ised ▁with ▁L 1 ▁Opt im us ▁II , ▁II ▁Opt im us ▁L 3 , ▁L 5 ▁Opt im us ▁II , ▁II ▁and ▁Opt im us ▁Opt im us ▁L 7 ▁L 9 ▁II . ▁ ▁Oper ating ▁system ▁is ▁Android ▁ 4 . 1 ▁J elly ▁Be an . ▁ ▁Fe atures ▁ ▁Opt im us ▁L 4 ▁II ▁is ▁a ▁mid - range ▁device , ▁no ▁special ▁features , ▁and ▁the ▁launch ▁price ▁was ▁ 1 2 9 ▁euro . ▁It ▁has ▁the ▁Opt im us ▁L G ▁user ▁interface . ▁ ▁The ▁processor ▁is ▁a ▁Medi ate k ▁ 6 5 7 5 ▁ 1   G Hz ▁single ▁core ▁processor ▁with ▁ 5 1 2 ▁MB ▁of ▁RAM ▁and ▁ 4 ▁GB ▁of ▁internal ▁memory , ▁which ▁can ▁be ▁increased ▁by ▁memory ▁cards ▁micro SD ▁and ▁ ▁micro SD HC ▁up ▁to ▁ 3 2 ▁GB . ▁ ▁The ▁screen ▁is ▁a ▁ 3 . 8 in ▁H V GA , ▁with ▁resolution ▁ 3 2 0 x 4 8 0 ▁pixels ▁( 1 5 1 ▁d pi ), ▁made ▁with ▁IP S ▁technology . ▁It ▁is ▁equ ipped ▁with ▁Wi - Fi ▁and ▁Bl uetooth ▁connect ivity , ▁and ▁a ▁battery ▁of ▁ 1 7 0 0 ▁m Ah ▁or ▁ 2 1 5 0 ▁m