A sensor patch is a wearable patch that monitors and diagnoses physiological parameters that can be tracked and analyzed from a remote source. Sensor patches are attached to a human body for monitoring a range of vital signs and providing specific treatments when required. Sensor patches are categorized under wearable devices, which have embedded intelligence, connectivity, and extensive usability. The demand for sensor patches has increased in various applications, such as healthcare, sports and fitness, and others. The report mainly focuses on the sensor patches that are increasingly adopting wireless technology for monitoring and diagnosis purpose.