How to get smooth renderer on IOS game?

Hello It's my first time using unity 5 for game development. I'm trying to make a simple game on my iphone 5s using Unity Remote 5. But the game object graphic shown on iphone is really different from desktop view. This is step by step how I build the application : New Project -> Input Name -> 2D -> Create Project Create 3D -> Sphere -> Make the sphere bigger Edit -> Project Settings -> Editor -> Device -> Select my Iphone 5s -> Run

Can you help me how to solve this problem? And also I somehow change the background color on the camera and the color shown in pc and iphone is not the same. How can I solve this problem too?