Cross-Technology
NFC vs Barcode
NFC tags are rewritable, store dynamic data, and support authentication but cost $0.03-$0.50 per tag. Barcodes cost virtually nothing to print but are read-only, easily copied, and require line-of-sight scanning. Barcodes dominate retail due to decades of existing infrastructure.
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Use NFC when you need rewritability, authentication, or tap interaction; barcodes for cost-sensitive retail with established infrastructure.