Lenovo K6power is an good mobile which has a good battery packup and is system software is good indeed and moreover it is surrounded by Dolby and the music interact is clear and Lenovo has been developed from this version and it is advance of 4gb RAM and 32gb in belt it is advance rather than other phone it is competitive between REDMIs3prime. But only disadvantage is the system software might stop due to some reasons and it is designed n formal way the camera clarity is okay compare to other Lenovo versions .and their is good features too eg: secure zone etc it is new to use and it is secured also while compare to other devices. The audio video is damn good and clearly surrounded