Hot work is a recognized hazard in many workplaces. Climate change is expanding the number of workplaces impacted by this hazard and the extent of that impact, with negative outcomes for workers’ health and workplace productivity. To combat this issue, workplaces and workers are looking for enhancements to their hot illness prevention programs, and wearable technology is receiving attention because it offers monitoring that is individual, real-time, and can offer remote streaming of data for moment-to-moment decision making. However, little evidence is available on the practical application of these tools and their functional use in the workplace. This presentation will give an overview of the challenges and opportunities of wearable technology for heat-illness prevention.