Smart Previews are synced to the Cloud and then to LR Mobile.
Photos uploaded through LR Mobile and LR Web will sync back via the Cloud to LR Desktop as Full Resultion.
Thanks for the reply! Glad my understanding of how this works is correct. Am I accurate about the rough size of the Smart Previews? My main concern is managing space used on my phone.
From what I have read Bruce, I think that's correct.
I'm not even sure that the Smart Previews always remain on your Phone unless they are cached.
I think sometlimes just thumbnails reside and the Smarts (or Originals, if you have those in the Cloud) are synced back to the device as required.
Have you looked in storage/usage in the Settings app on the phone? It tells you how much space LR is taking up (also how big the actual app is).
Didn't even thing to do that!!! Thanks for reminding me of that option! Based upon the info Data Usage, it appears that the Smart Previews are averaging about 1.1 MB per stored picture. Which is actually less than the 1.5 to 2 MB that I was guessing. Thanks for the assist!