The chips wore by the fans on wrist is similar to London's Oyster card syste,reports BBC Newsbeat.
On the small pocket of festival goers this system had been used at the Isle Of Wight and the recent Red Hot Chili Peppers gig at Knebworth. But this is the debut time every fan has had to wear one in the UK.
Revellers, who are scanned in and out of areas at the site through turnstiles or hand-held devices, can pre-load the wristbands with money to pay for food and drink, and check into social networks.
Organisers at the event, which this year was headlined by Calvin Harris, Dizzee Rascal and Ed Sheeran, are also able to monitor how many festival-goers are onsite.
