Various embodiments relate to a first-aid kit including at least one first aid item； and a wearable device configured to be worn by a user and including: a communications interface for communicating with a mobile device of the user； a sensor for obtaining vitals data when the wearable device is worn by the user； a processor configured to transmit vitals data to a mobile phone of the user via the communications interface wherein the first aid kit includes a means for causing instructions for processing the vitals data to be loaded onto the mobile device. In some such embodiments, the means for causing instructions to be loaded includes: a memory storing contents including at least one of: the instructions for processing the vitals, and a resource identifier that points to the instructions for processing the vitals at an application download server, wherein the contents are transmitted to the mobile device.
