Jawbone UP4 to Feature NFC Mobile Payment Functionality
wrist. Today, Jawbone announced that its next generation of Up fitness bands will include NFC functionality, allowing you to make purchases with an American Express account with a simple tap. The new device, the splash-resistant Jawbone UP4, will track your activity, calories burned and offer sleep and heart monitoring. It will also have an NFC chip built in, which can be paired to an existing American Express card through the Jawbone smartphone app.