Screen.currentResolution

The current screen resolution (Read Only).

If the player is running in window mode, this returns the current resolution of the desktop.

JavaScripts

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
void Awake() {
print(Screen.currentResolution);
}
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

def Awake():
print(Screen.currentResolution)