Rapid advances in information and sensor technology have led to the development of tools and methods for individual health monitoring. These techniques support elderly health management by tracking the vital signs and detecting physiological changes for the target population, such as the elderly and patients with chronic diseases. Two pilot studies were conducted to demonstrate the implementation of electronic wearable wellness devices and an all-in-one station-based health monitoring device at the community level in Hong Kong. Real-time and daily changes of key vital signs in elderly people recruited from a nursing home and a geriatric daycare center were collected. Preliminary analysis of the collected data provided insights into the characteristics of vital signs of the elderly from two centers, which could bring benefits to the management of healthcare services. Additionally, a personalized wellness forecasting system was built to identify the factors influencing the personal wellness of the elderly, by aggregating historical daily vital signs.