title: Android Build.XXX consts standards
body: <p>I have a few questions about the following consts in the Build class:</p>
  
  <p>MANUFACTURER, MODEL, PRODUCT, BRAND, DEVICE</p>
  
  <ol>
  <li>Is there some kind of standard for the values of the above consts?</li>
  <li>Can I count on the values to exist (not be blank) on all devices?</li>
  <li>Is there a difference between the values when the device is bought from different mobile carriers?</li>
  <li>What is the best way to identify a device type? (for example, to know that this is a Galaxy S5 bought from Verizon)? If such a way exists, is it bullet proof?</li>
  </ol>