Wearable Device

Wearable devices are electronics worn on the body as watches, glasses, rings, or clothing. Smartwatches like Apple Watch and Google Pixel Watch are most prevalent, used for health tracking, notifications, payments, and navigation.

QR codes and wearables evolve on both display and scanning fronts. For display, smartwatches increasingly show QR codes for authentication and payment - boarding passes, event tickets, gym access, and convenience store payments completed by showing a wrist QR code. Apple Wallet and Google Wallet passes render as QR codes on watches.

For scanning, smart glasses (AR glasses) enable hands-free QR code reading. Warehouse workers viewing product QR codes through smart glasses see picking instructions and inventory data overlaid on their lenses - eliminating the need to pull out smartphones in hands-busy environments.

Wearable QR code display faces screen size constraints. Small smartwatch screens require low-version (small) QR codes with limited data capacity, demanding designs that function with short URLs or token-based authentication codes.