E-ink shelf labels are quite common here. NFC in that case seems like a much worse option than longer distance radio communication powered by a small battery lasting a few years.
As the article notes, this is probably best for information that needs to be updated relatively infrequently, if you're doing it so often that labor cost is at all much of a concern. Updating displays one by one manually using NFC seems like it would be nearly as labor intensive as swapping paper labels.
As the article notes, this is probably best for information that needs to be updated relatively infrequently, if you're doing it so often that labor cost is at all much of a concern. Updating displays one by one manually using NFC seems like it would be nearly as labor intensive as swapping paper labels.