Abstract: A wearable monitoring device system includes a wearable monitoring device (WMD), including a support structure and a plurality of electrodes. A WMD data store includes parameter data that define settings of the WMD, interpreted code that provides access to the parameter data, a web server configured to serve the interpreted code. The WMD includes a WMD processor configured to execute the web server. The system includes a companion device communicatively coupled to the WMD, including a display, a companion communication module configured to communicatively couple the companion device and the WMD, and a companion data store. The companion data store includes a browser configured to render the interpreted code. A companion processor is included, configured to execute the browser.