How to detect gpu name?

How can i display with c# smartphone’s gpu name ? I red about sytemInfo but i cant make it work…
Any help appreciated.

What are you doing in your code?
this doesn’t work for you?

   string name = SystemInfo.graphicsDeviceName;

Right now i just want to display it with debug.log.

here is the code i wrote.
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class SystemInfo : MonoBehaviour {

	public static string graphicsDeviceName;
	public static int maxTextureSize;
	public static string graphicsDeviceVersion;

	void Info () {
		print (SystemInfo.graphicsDeviceName);
		print (SystemInfo.maxTextureSize);
		print (SystemInfo.graphicsDeviceVersion);
	}

	void Start(){
		Info ();
	}
}