Android screen Resolution

I am working on a game for Android that i have two devices, A Oneplus One with a resolution of 1080x1920 and a Nexus 10 with a resolution of 2560 x 1600. I have unity Remote on both of them and the game fits perfectly on them.The game has perfect size on the remote although it is pixely, for both of them. I built the APK and uploaded to both of those devices.The game runs only in Portrait. I ran the game on the Nexus and my start screen shrunk alot making it hard to read and the game itself had ALOT of cuttoffs, i have a number/text ui object in the corner that was completely cut off. On my OPO it was the exact same thing.I learnt after that that the unity Game tab has a aspect view tab. I made a custom view of 1080x1920(OPO) and resized everything to fit that resolution and have not tested on any other device. I changed the resolution of the iPhone 4 and the Nexus resolution and many parts got cut off. I am using a perspective camera and Unity 5.0.0f4 Free. Someone help me with something simple yet most effecient.