Abstract: The invention involves a system and method implementing a wearable device that employs a flexible printed circuit board (PCB), which includes a temperature sensor. The PCB may be printed on a flexible substrate that may be folded to form multiple layers configured to house the sensor and an antenna. The sensor may be housed within said layers and situated at a terminal end of a pathway that may be printed on the PCB, wherein the pathway acts as a contact as well as a conduit of heat from the body of the user to the sensor. The antenna may be housed within the layers of the flexible PCB in a manner such that proper signal transmission is preserved and latency is minimized. Temperature readings may be wirelessly communicated to one or more client devices, which implement one or more algorithms suitable for generating insights regarding health aspects of the user.