The traditional medical system requires patients to visit hospitals for examinations and diagnoses, which can be inconvenient.

Consequently, the demand for more accessible and convenient health monitoring solutions has been increasing. Stretchable

healthcare devices, which can bend and stretch to fi t the body’s complex curves, have gained attention for their ability to provide

real-time data while being comfortable to wear. These devices adhere closely to the skin, allowing continuous monitoring

of vital signs in daily life. Recent technological advancements have established stretchable healthcare devices as essential

alternatives in various medical applications. This review categorizes healthcare devices into fi ve main types: biochemical,

cardiovascular, neural and brain activity, temperature, and optical and imaging sensors. Each sensor type is described with

a focus on its role in the healthcare fi eld, recent technological trends, and performance improvements achieved through

innovative materials. Emphasis is placed on the necessity of sensors for real-time monitoring, with examples showcasing

cases where material innovations have enhanced accuracy and sensitivity. This review highlights the potential of integrated

wearable healthcare systems to drive advancements in personalized healthcare and disease prevention.