Hai this is harsha the lyf flame 1 is buy by me in last month it has good 4g speed its features are 1gb ram and 8gb rom and 11.43 cm display 5mprear& 5mpback camera its work on 5.1.1 android os.
It has the dual sim has the capacity of 4g if 1sim is work on 4g the other is use as 2g.