The paradigm for healthcare is not only transforming from hospital-oriented treatments to individually centered prevention, but also extending its scope from disease-oriented to wellness-centered. One of the key requirements for care of entire life is to detect health and wellness status accurately and sustainably in various life scenarios.

A variety of technologies are currently used to track a person’s health and wellness status. They include electrodes, optical sensors, strain gauges, and ultrasound devices, each of which has some drawbacks in terms of user experience such as comport and convenience. The objective of emerging unobtrusive sensing technology is to enable sustainable tracking of physical activities, behaviors, and physiological and biochemical parameters during daily life. Person being monitored would not even notice the existence of the sensing device or procedure. Unobtrusive sensing technologies, which can be implemented in the form of wearables and IoT devices, may be a good solution for the future lifecare, but there is a difficulty in deriving useful information from low quality signals.

The goal of this special issue is to bring researchers and practitioners from academia and industry together to the forums and present vision for research and development of future lifecare technology by sharing cutting-edge research and applications on unobtrusive sensing solutions such as sensors, devices, and signal processing algorithms.

We invite high quality research papers as well as review articles that describe current and expected challenges along with potential solutions for lifecare technology.

Potential topics include but are not limited to the following:

• Noncontact monitoring of health and wellness by unobtrusive sensing technologies
• New concept device (e.g., mobile, wearable, nearable, and attachable) for the lifecare
• Sensing and analysis (signal processing) algorithms for unobtrusively measured signals
• Clinical evaluation of healthcare sensors and devices: accuracy, effectiveness, and efficacy
• Literature and systematic reviews on sensing technologies for lifecare