I have a Galaxy S7 and if I can remember right, when I visited my forum with my phone it did say "we detected your Android" or something like that. The image that is used, and the UA detection is based mostly on OS I reckon. So I wouldn't think you would need new code for Galaxy S7, Galaxy S6, Galaxy S4, etc, etc.
Tablets might be another matter.
You can test your UA's and the ones you see come to your site. I use the browser Pale Moon with the XUL-based add-on called UAControl. With UAControl you can make your browser look like anything you want. That's how I engage my custom UA on my forum to make it look like I'm posting from a drone. This extension sees my custom UA, and then spits out, "Posted via Drone." with a picture of a small drone.
So with this knowledge you could use UAControl, add the UA you see for testing and see if in fact an image does pop up at the top of your board signifying this extension has detected it. If there isn't any detection, then of course that UA needs to be added to this extension.
Let me test the two UAs you posted and see if anything shows up. If so I'll post screen shots.
Here's the extension, but not compatible with the latest version of FF. The beauty of Pale Moon is that it still uses XUL and not asinine webextensions that FF chooses to use now to code add-ons. https://addons.mozilla.org/en-US/firefo ... uacontrol/
Older versions of Firefox here: http://www.oldapps.com/betasearch.php?c ... &q=firefox