invented new intimate ways to connect and communicate directly from your wrist. it is also a comprehensive health and fitness device. >> reporter: the first new apple product in four years. virtually your life on your wrist. with the new apple pay system for apple watch and iphone, you no longer need a debit or credit car. >> your total is $23.78. >> that's it. >> cook promising your accounts are encrypted while giving abc news' david muir an exclusive backstage pass. >> we've made it incredibly safer. no longer do you have exposed number that anybody can look at. no longer do you have there five-decade-old mag stripe technology. >> reporter: it was 30 years ago on this very stage steve jobs unveiled