In my opinion xiaomi redmi note3 is the best smartphone under 15k it has has full metalic stylish body which weight about 164g comimg to its display its has display of 5.5 inches with full hd resolution that is 1920×1024 with ppi of 403 and multitouch screen it support 2g 3g as well as 4g moving under the phone it has qualcom snapdragon 650.
In which 4 cores is clocked at 1.4ghz with cortex a53 and 2 cores clocked at 1.8ghz cortex a72 and having gpu aderno 510 it also has memory card slot option upto 128gb having internal meomery 16gb/32 and having ram2gb/3gb coming to its camera it has 16mp rear camera with f/2.0 which has face detetion auto focus HDR panorama and 1080p recording front camera come with 5mp and have f/2.0 it have battery of 4000mah which is non removeable ADDITION FEATURE IT HAS FIGERFPRINT scanner accelometer gyro proximity compass active noise cancellation audiojack of 3.5 mm .