Screenshot testing picking mobile device version and browser

I am trying out the screenshot testing (currently on the free plan). I cannot figure out how to pick an OS/browser combination for android phones. I am able to pick an OS version for iPhones but no such option for Android phones.

I assume this is because I am not on a paid plan. Is that right? If I started paying, would I be able to:

  1. pick a specific OS version for a phone
  2. pick a specific browser on that OS
  3. ideally test on real devices rather than emulators.

I would actually like to try out some of the paid options but I cannot figure out how to pay monthly. Is that actually not an option?