I recently Purchased one Samsung Galaxy M 31 128 GB Mobile with 64 Mp Back main and 3 other camera and 32 Mp front selfy camera. This mobile is perfect for those who interested photography . Many options to take photos just like DSLR camera . Also Calling and recording features are good . Sound / speaker also very good . Mic capturing is also good . many inbuilt features like long screen shoot and many in simple slide( only disadvantage I can say is slide for screenshoot instead off other some time it will not work if your hand is wet) . Far better than any other mobile in 30 k to 40k . you have to pay 16800/-( Aug 2020 price) . I really recommend this mobile for those who interested in photography, selfy, audio video watching . Audio and video quality is very Good in this mobile .