My current workflow is like this:
This works fine for me, however the RAW files in Lightroom Mobile are taking up more and more space on my iPhone.
Is there a way to delete the RAW files from the Lightroom Mobile app and replacing them with the respective Smart Previews?
Thanks a lot!
This might work for your future imports, but could be difficult for images on mobile you have right now.
You can transfer all your Raw images from your Phone to computer and then import them in Lightroom Desktop.
Once imported, Images can be synced and you will have Smart Previews of raw files on Mobile.