Redmi 4 sound quailty very good and loudly.many user friendly in my neighbours the style redmi 4 very simple the backgroud metal body design so pretty I like a feature quickball in redmi 4 and three finger slide screenshoot and the battery feature so amazing 4000mAh another feature I most like the fingerprinter sensor my experience the xiaomi company miss the facelock in redmi 4 I liked theme app feature xiaomi devices 10000 themes and xiaomi respone very quick redmi 4 device good looking with backside cover my experience xiaomi company relased redmi 4 very good feature and the redmi 4 money price is awesome price 10, 000 with a fingerprint sensor