Just to confirm, are you using the new Cloud based Lightroom CC or the traditional folder based Lightroom (that is now know as Classic)?
Also, if you save to the phone’s gallery (is that what it Is called on Android?) can you determine what the resolution is then?
I'm definitely using CC. I love it much more than the old Lightroom.
Gallery has been dumped in favour of Google Photos. They change every few months it seems. Anyway, the results are the same. I'll describe the exact situation below.
I select an image in Lightroom CC for Windows (on W10) and I choose "Save To..." and choose "Full Size" and I get a JPG that is 4896x3264 which is exactly what my Fujifilm X-E1 creates. This image is 4.79 MB in size.
I select the exact same image in Lightroom CC for Android on my Samsung Galaxy S7 Edge and I choose "Share to Flickr" and I get an image that is 2048x1365 and the image is about 340k in size. I get the same reduced resolution when I choose "Share to Google Photos" or "Share to Dropbox". I do not see any option to export "Full Size" in the Android app, unlike the Windows app.
I really would love to do this from my phone but I'm not willing to throw away most of the image's quality for that convenience. Any assistance would be really appreciated.
When you Save To Device as here Reg, do you get the size option (and if so is it better)?
Maybe when sharing it only can do low res... similar to this thread:
You're a star! I did do a Save to Device and got the full sized image, and was clearly prompted about whether I want it to downsample the image. Sharing gave me no such choice. It does appear that sharing forces that downsampling which is irritating but not critical now that I have this workaround. Thanks for your help!