 Digital wallets are composed of both digital wallet devices and digital wallet systems.There are dedicated digital wallet devices such as the biometric wallet by Dunhill, a physical device that holds cash and cards along with a Bluetooth mobile connection.Presently there are further explorations for smartphones with NFC digital wallet capabilities, such as the Samsung Galaxy series and the Google Nexus smartphones utilizing Google's Android operating system and Apple's iPhone 6 and iPhone 6 Plus utilizing Apple Pay.