Excellent work with full screen. Battery backup is always good.i bought this phone for its price and screen size .its a very good piece .you will bought this from vivo shop its sound system is good and loud .i like this vivo v15 pro for its security with finger lock.i am always happy from I bought this phone .you will trying it.mobile phone gives with 4G+ network.its screen is very big .sound system and battery backup is fine.