The disclosure concerns a body-wearable medical device, such as an analyte monitoring system or a patch-mounted pump. The device has a self-adhering flexible electronics patch which adheres to the skin of a user and is deformable to follow the contour of the skin. In order to provide a flexible non-body configuration, the electronics patch includes flexible printed circuitry which is applied directly on a foil substrate. A user interface is configured for a user to control the device.
