Smartwatches; Wearable RFID reader; Wearable scanner; Wearable scanner for use in warehouse; Smartwatches with bar-code scanner used to receive data in the field of healthcare; Smartwatches with bar-code scanner used to retrieve patient information in the field of healthcare; Smartwatches with bar-code scanner for re-ordering medication in the field of healthcare; Smartwatches with bar-code scanner used for drug and patent verification; Smartwatches used for patient care tasks and processes in the field of healthcare; Smartwatches used as on-call medical receiver to receive medical calls with relevant information displayed on the screen; Smartwatches with bar-code scanner used to receive data in the field of inventory management; Smartwatches with bar-code scanner used to retrieve inventory information in the field of inventory management; Smartwatches with bar-code scanner for re-ordering goods in the field of inventory management; Wearable barcode scanner used to receive data in the field of healthcare; Wearable bar-codescanner used to retrieve patient information in the field of healthcare; Wearable barcode scanner for re-ordering medication in the field of healthcare; Wearable bar-code scanner used for drug and patent verification; Wearable bar-code scanner used for patient care tasks and processes in the field of healthcare; Wearable bar-code scanner used as on-call medical receiver to receive medical calls with relevant information displayed on the screen; Wearable bar-code scanner used to receive data in the field of inventory management; Wearable bar-code scanner used to retrieve inventory information in the field of inventory management; Wearable bar-code scanner for reordering goods in the field of inventory management; Wearable bar-code scanner used as point of sale device; Wearable bar-code device in the nature of a scanner used to check-out retail items; Wearable devices in the nature of wearable activity trackers with fitness sensors; Wearable device in the nature of a wearable activity tracker used for data generating sensors for various data analytics; Wearable bar-code scanner for shipping confirmation; Wearable bar-code in the nature of an encoded bar code label for package procurement; Wearable bar-code scanner for dispatch; Wearable device in the nature of a wearable activity tracker for research and development in software, hardware, and data analytics