# Future Trend in Wearable Electronics in the Textile Industry
## 4 Technical Limitations in Wearable Technology  
However, more work is still needed to resolve all technical limitations, particularly with regard to the following: (a) accuracy and reliability of data measurement (noise reduction); (b) reliability, safety, and security of data transfer; (c) minimization of the number of additional attachments (simplification of the system by multifunctional textiles); (d) efficiency of power management, including power generation; (e) durability of the systems, including washability and long-term accuracy in performance; (f) user-friendliness, including the ability to use/wear the garments without assistance; (g) mobility, including weight reduction; (h) cost versus product lifespan or durability; (i) comfort and physical aesthetics, including breathability, absorbency, drape, handle, etc. ; and (j) health and safety [43]. _Accuracy and reliability of data measurement_  
The market for smart textiles still lacks maturity. Current systems need improvements in terms of reliability, such as accuracy, repeatability, and reproducibility [44]. Responses are needed regarding the risk of interference of wearable electronics with communication systems and other electronic systems such as pacemakers. Moreover, internal and external environmental conditions such as profuse sweating or rain may also interfere with smart textiles proper operation [44; 45; 46]. Conventional rigid-type sensor devices, which show high electrical performance, can be easily manufactured by conventional processes. Nevertheless, it is difficult to obtain accurate physiological signals because it is not easy to make strong contact with the human body. A research showed that the Near Field Communication (NFC) antenna is seamlessly integrated with closed-body garments, and the sensor data can be easily acquired by NFC readers and smart phones in order to achieve real-time and wireless monitoring of health status in a convenient and nonintrusive way [46]. Both temperature and sweat sensors powered wirelessly by the reader are able to provide accurate and reliable results. It is believed that the wireless powered smart textile sensing system reported possesses potential to be widely applied into daily health care system and wellbeing monitoring, but more research and developments still needed. There is even a problem that electrical performance is weakened because of deformation on bending, stretching, or twisting [47]. In addition, there are still challenges of newly developed sensors, e.g., carbon-based materials, in terms of compact design, low-cost fabrication, device protection layers, multifunctional sensing, and integration techniques for realizing fully embedded practical wearable electronics. Relevant knowledge, standards, and test methods are also important for understanding of a new product's operation and the generation of data about device safety and behavior over time. The lack of appropriate standardized test methods and regulatory framework may generate risks for the user [44]. For medical devices, safety and security are primary considerations, tightly coupled with reliability at all system levels. Increasing importance is being assigned to these major user concerns. If a wearable device is required to perform critical functions safely, the tolerance for error is zero. A failure in such a device can cost a life, and that requires more effort, cost, and time to be invested in thoroughly testing and validating the device before it is deemed safe to use [48]. _Reliability, safety, and security of data transfer_  
Communication systems in electronic textiles, such as Bluetooth, allow for connectivity of the textile to other intelligent devices for the visualization and analysis of data obtained in real time [49]. In this context, the vision of smart clothes promises greater user-friendliness, user empowerment, and more efficient services support [50].