You can find the Fetch as Google feature in the Crawl section of Google Webmaster Tools. Then, submitting a URL with “Fetch and Render,” that will take a few minutes and show you a status complete indicator. Once it’s ready, just click on the response row to see the results.
You can specify the device type you want to Fetch and Render as, like desktop, smartphone or other devices. The following results show you the how the desktop and mobile version may look and also notice the tabs for both “fetching” and “rendering.”
Here is a Desktop sample:
Here is a Mobile sample: