No lags at all even when we play on low battery there is no lags previously some phone get hang when we do some task on low battery mode. Run everything smooth. Display Quality is superb but we can't play 4k videos on youtube other than this i compare with other brand it look good display compare to other even some have 4k but it's display also good. all is good but it's brightness is less compare to other. Smoothness of display is awesome in this range smartphone. Overall i like it hope you can take decision correctly in security privacy it will be good than other brand.