Geoffery Gill and Martina Donohue from Shimmer Americas discuss five examples of the type of information that can be garnered from wearable sensors. The stream of continuous, objective data these devices offer hold the potential to revolutionise healthcare. With clinical trials, wearable sensors can reduce both cost and duration. They conclude that collaboration is key to adopting this technology for clinical trials, and the industry should leverage the work and experience gleaned from wearable sensors used in other fields.