Same as Shri, my 12 year old has the Xiaomi note 4 and he's completely changed the UI to look like an iphone of all things. And damn it is convincing, I mean the icons, fonts, the way notifications and pull up for music and airplane mode works etc, fucking hell the thing completely looks and works like an iphone now. Just saying, the UI should not really be a concern. I think there is also a "google now" launcher you can install if you want it to look like a google phone.