Herein is disclosed a glucose measuring system, the system comprising an on-skin device configured to measure, process and store glucose sensor data, the on-skin device including a mounting unit adapted for mounting on a skin of a host, an electronics unit connected to the mounting unit, the electronics unit configured to perform the processing and storing, and a sensor for measuring a level of glucose in a host, the sensor comprising an in vivo portion for insertion through the skin at an exit site of the host and an ex vivo portion connected to the mounting unit, wherein the sensor is operably connected to the electronics unit； and a receiver for receiving and processing the glucose sensor data, and displaying the processed glucose sensor data on a user interface of the receiver, wherein the on-skin device is configured to transmit stored glucose sensor data when requested by the receiver, wherein the receiver requests the on-skin device to transmit the requested stored glucose sensor data when the receiver is held in close proximity to the device, and wherein the requesting and transmission use inductive coupling data transmission.
