Bluetooth is great, but have you ever tried to connect multiple devices in the same room at the same time? In a group or classroom setting trying to pair and synchronise 25-30 devices at the same time would be impossible. Moki uses NFC (Near Field Communication), the same technology commonly used in contactless card payments as a safer and more reliable solution. Simply tap your Moki Band on the Moki Reader and any number of users can sync their steps to the app quickly, easily and securely.