This review paper aims to summarize recent advancements in wearable sensors and systems relevant to rehabilitation. It highlights the growing application of wearable technology in monitoring older adults and individuals with chronic conditions in home and community settings. Key enabling technologies, including sensor technology, communication technology, and data analysis techniques, are discussed. The paper details major areas of application, such as health and wellness monitoring, safety, home rehabilitation, assessment of treatment efficacy, and early disorder detection. The integration of wearable and ambient sensors is explored to achieve home monitoring of older adults and those with chronic conditions. Future challenges and advancements in the field are also addressed, emphasizing the need for further research to advance clinical deployment of wearable sensors and systems.This review paper aims to summarize recent advancements in wearable sensors and systems relevant to rehabilitation. It highlights the growing application of wearable technology in monitoring older adults and individuals with chronic conditions in home and community settings. Key enabling technologies, including sensor technology, communication technology, and data analysis techniques, are discussed. The paper details major areas of application, such as health and wellness monitoring, safety, home rehabilitation, assessment of treatment efficacy, and early disorder detection. The integration of wearable and ambient sensors is explored to achieve home monitoring of older adults and those with chronic conditions. Future challenges and advancements in the field are also addressed, emphasizing the need for further research to advance clinical deployment of wearable sensors and systems.