Abstract: The wearable device (10) comprises a liveness detection module (103) arranged to detect whether the wearable device (10) is being worn by a user. The wearable device (10) comprises an activation message module (105) arranged to generate an activation message for requesting that wireless network services be activated for the wearable device (10) in response to the liveness detection module detecting that the wearable device is being worn. The wearable device (10) comprises a communicator (107) arranged to transmit the activation message to a server operable to activate wireless network services for the wearable device (10). The wireless network services are to be activated for a first wireless network. The communicator (107) is arranged to transmit the activation message via a second wireless network that the wearable device (10) is activated to transmit data on.

Abstract: The wearable device (10) comprises a liveness detection module (103) arranged to detect whether the wearable device (10) is being worn by a user. The wearable device (10) comprises a communicator (107) arranged to transmit a message to a server in response to the liveness detection module (103) detecting that the wearable device (10) is being worn. Prior to the liveness detection module (103) detecting that the wearable device (10) is being worn by a user, the wearable device (10) is arranged to operate in a low power mode.