Vitamin D deficiency represents a pressing public health challenge in the United Arab Emirates (UAE), with particularly high prevalence among women. Wearable technologies that promote appropriate sun exposure offer a promising way to help individuals achieve and maintain sufficient vitamin D status. This qualitative proof-of-concept study aimed to assess how Emirati women diagnosed with hypovitaminosis D perceived the usability and potential benefits of a novel heliometric device designed to encourage and monitor safe sun exposure. Nine Emirati women aged 19 to 21 participated in a protocol requiring them to wear the heliometric device, in the form of a wristband, for 10 minutes each day over one week. They were also instructed to observe standard recommendations for sun exposure. At the end of the week, participants provided qualitative feedback through open-ended questions in an online evaluation form. Researchers then conducted individual interviews with all participants to explore their responses in greater depth. Thematic analysis was used to interpret the full set of qualitative data. Participants generally reported favorable views of the device. A strong consensus emerged that the heliometric wristband effectively supported adherence to the advised sun exposure guidelines. Environmental factors such as weather, religious and cultural norms regarding clothing, and personal preferences for physical activity also shaped compliance. While most participants appreciated the device’s ease of use and measurement accuracy, some noted limitations related to comfort and connectivity. They proposed several design and functional enhancements to improve practicality, wearability, and reliability. In addition, the device increased awareness and helped dispel certain misconceptions about sun exposure. The wearable heliometric device proved acceptable to users and shows potential as a supportive tool for addressing hypovitaminosis D by fostering safe sun-related habits. Additional quantitative investigations with larger cohorts, extended follow-up periods, and controlled designs are warranted to evaluate the clinical value of such devices.
