Ikôn is a PDA from Psion Teklogix designed for mobile workers. It has a large (for PDA standards) 3.7" VGA touch-screen display, as well as a variety of options, such as barcode scanner.
Today, this hand-held computer is not considered a consumer item, but a rugged commercial unit. It has an IP65 rating and has survived drop tests from 5 feet to polished concrete.
References
Ikôn Wikipedia(Text) CC BY-SA