IDTechExs report on wearable sensors offers a thorough characterisation and outlook for each type of sensor used in wearable products, both today and in the future. The report has been compiled over three years of research, leveraging IDTechExs expertise in areas such as wearable technology, sensors, IoT, energy storage & harvesting and materials. The report covers 21 different types of sensor, across 9 groups, characterising the technology, applications and industry landscape for this. The report describes the activity of over 115 companies, including primary content (e.g. interviews, photographs, visits, etc.) with more than 80 key players in the industry. Finally, the report provides detailed quantitative market forecasts for each type of wearable sensor, leveraging unique primary data from interviews, collated financial statistics and industry trends alongside IDTechExs parallel forecasting for 42 different wearable technology product types.As many wearable technology products rise and fall through the hype curve, companies are consolidating around the aspects of wearable products that add the most value. In many cases, these value propositions come from the sensor data. Fitness tracking and smartwatches have been built around biometric and activity data. Virtual, augmented and mixed reality devices rely on a suite of sensors including combinations of cameras, inertial measurement units, depth sensing, force/pressure sensors and more to enable the user to interact with the content and the environment. Medical devices often exist to directly monitor and interact with processes in the body. Other areas such as military products, PPE, enterprise systems and more are no different.In all, IDTechExs Wearable Technology research tracks over 42 different wearable product types. This extensive work over many years has been leveraged to provide forecasts in volume, price and revenue for 21 types of wearable sensors, across 9 product groups, with the split between revenue in 2022 as shown: