Statistics windows on a mobile device

You can calculate the fps and draw calls. Code below will show the draw calls and Fps if attached to a camera or any game object.

Please note that , you should extend draw calls function in script below, for counting GUI which exits on Screen.

using UnityEngine; using System.Collections;

public class ShowInfo : MonoBehaviour {

 public float updateInterval = 0.5F;

 private float accum = 0; // FPS accumulated over the interval
 private int frames = 0; // Frames drawn over the interval
 private float timeleft; // Left time for current interval
 private string fpsText;
 private GameObject[] AllObjects;
 private int DrawCalls;
 void CalculateFPS()
 {
     timeleft -= Time.deltaTime;
     accum += Time.timeScale / Time.deltaTime;
     ++frames;

     // Interval ended - update GUI text and start new interval
     if (timeleft <= 0.0)
     {
         // display two fractional digits (f2 format)
         float fps = accum / frames;
         string format = System.String.Format("{0:F2} FPS", fps);
         fpsText = format;

         timeleft = updateInterval;
         accum = 0.0F;
         frames = 0;
     }
 }
 void Draw_DrawCalls()
 {
     foreach (GameObject g in AllObjects)
     {
         if (g.renderer && g.renderer.isVisible)
         {
             DrawCalls++;
         }
     }
 }
 void Start () {
     timeleft = updateInterval;
     AllObjects = (GameObject[])GameObject.FindObjectsOfType(typeof(GameObject)) ;
     

 }
 
 // Update is called once per frame
 void Update () {
     CalculateFPS();
     Draw_DrawCalls();
 }
 void OnGUI() {
     GUI.Label(new Rect(0.0f, 0.0f, 100.0f, 25.0f), fpsText);
     GUI.Label(new Rect(0.0f, 50.0f, 200.0f, 25.0f), "Total Draw Calls : "+ DrawCalls.ToString());
 }

}

Hope this helps...