Methods, systems and devices are provided for automatically linking a device to an activity tracking device. One method includes obtaining, at the device, a identifier from a website. The identifier is for an activity tracker that has been paired to a user account of the website. The method includes scanning, by the device, for the identifier. The scanning is of advertising messages generated by one or more activity trackers. The method identifies the activity tracker by matching the advertised identifier to the identifier obtained from the website. The method then includes establishing a link between the activity tracker and the device. The link is established without requiring user initiation to link the activity tracker to the device.
