This iPhone 7 plus is the most highly advanced iOS phone ever made by apple this phone contains stereo speakers which gives the music loudness more clear and loud the phone is now been waterproof and it can be submerged under water for 30 min and it is the more slimmest phone and its curves are circular and it has matt black finish and it is user friendly na the battery backup is too amazing if we use it only for calling purpose battery would be around for 2 day if we had turned on LTE we get battery back up for 1 day completely without any degrade and it has new feature in it that is the home button which act as the unpressed air button anti lock system in which there no need to click the buttom u just have to tap on that and basic features is those finger print which have been improved in iPhone 7 plus and in memory space 128 GB is more enough than 256 hence I would conclude by saying iPhone 7 plus 128 gb is the best fastest and brilliant iOS phone ever apple made