I have been using this fine piece of engineering since the past 2 years and never has it lagged, unlike other similar price range smartphones. The best feature of this device is its battery back-up. Inspite of being a two year old device, the battery lasts for an entire day with average usage. The camera is very good under normal daylight conditions, low light photography could have been better but considering its price of ₹12000, we get more than what we pay for. All in all in this price range this smartphone is a hands down winner for me. Opt for it with your eyes closed knowing that you will not be disappointed.