The recent development in wearable and pervasive sensing technologies have shown promising results in tackling major healthcare challenges, from quantifying post-operative care, providing assistive functions, to assessing efficacy of therapeutic intervention and assisting diagnosis. Numerous devices and platform technologies have been introduced for chronic patient care, elderly care, mental health, wellbeing, sports and other applications. However, majority of the research and developments are focused mainly on tackling healthcare issues in the developed world. These low-cost technologies have great potential to alleviate the increasing care cost meanwhile improving the quality of care provided to patients and older populations. They can be applied for both developed and developing countries addressing global health problems.