SIGMA Link One app – two types of wireless transmission

The ROX GPS models connect to the app via Bluetooth Smart. Other SIGMA bike computers use NFC (Near Field Communication) to read and transmit data. Transfer of data via NFC is only supported by Android smartphones.

SIGMA Link

Smart Notifications

In conjunction with the new SIGMA LINK app, the ROX GPS 11.0 can also show incoming calls or messages live on the display.