Development and evaluation of an Iot-based wearable heart rate monitoring system
Saira P. Agustin, Gian T. Delgado, Jein Eliz D. Franco, Sheena Eliz P. Himalay, Justin Charles V. Malihan, Jose Joshua M. Yerro, Terrence Angelo Z. Zabala, John Jeylord D. Zonio, Loraine G. Arevalo & Vianny Nicole P. Montuya
Abstract
This study aims to develop and evaluate a cost-effective Internet of Things (IoT)-based heart rate monitoring armband that addresses the limitations of existing devices lacking wireless connectivity for real-time data transmission in dynamic and remote monitoring contexts. A mixed method approach was employed to assess device functionality, usability, and effectiveness. The armband utilized ESP32 NodeMCU microcontroller and Blynk mobile application platform for wireless transmission. Purposive sampling recruited volleyball players (n = 30) from Aklan Catholic College, Philippines. Following cardiologist validation, data were collected through structured surveys and semi-structured interviews across multiple activity levels (rest, walking, running). Quantitative analysis revealed excellent functionality (M = 3.41), usability (M = 3.43), and effectiveness (M = 3.43) on a 4-point Likert scale. The armband demonstrated reliable real-time heart rate detection across varying intensities: rest (M = 3.29), walking (M = 3.27), and running (M = 3.29). Qualitative feedback identified enhancement opportunities including strap comfort, battery longevity, sensor precision, and water resistance. The study was limited to a single institution and specific user demographic. The IoT-enabled armband represents a reliable, user-friendly, and economically viable solution for cardiovascular monitoring, with significant potential for remote patient monitoring systems and broader healthcare applications.
Keywords
wearable technology, real-time monitoring, cardiovascular health, mobile health applications, ESP32 microcontroller
Author information & Contribution
Saira P. Agustin. Senior High School Graduate, Aklan Catholic College.
Gian T. Delgado. Senior High School Graduate, Aklan Catholic College.
Jein Eliz D. Franco. Senior High School Graduate, Aklan Catholic College.
Sheena Eliz P. Himalay. Senior High School Graduate, Aklan Catholic College.
Justin Charles V. Malihan. Senior High School Graduate, Aklan Catholic College.
Jose Joshua M. Yerro. Senior High School Graduate, Aklan Catholic College.
Terrence Angelo Z. Zabala. Senior High School Graduate, Aklan Catholic College.
John Jeylord D. Zonio. Senior High School Graduate, Aklan Catholic College.
Loraine G. Arevalo. Corresponding author. Bachelor of Secondary Education Major in English. Senior High School English Teacher at Aklan Catholic College. Email: lorainearevalo24@gmail.com
Vianny Nicole P. Montuya. Bachelor of Secondary Education Major in Science. Senior High School Science Teacher at Aklan Catholic College. Email: viannynicolemontuya@gmail.com
"Author 1 and Author 2 conceptualized and finalized the research framework. Author 3 and Author 4 drafted and critically revised the manuscript. Author 5, Author 6, and Author 7 gathered, analyzed, and interpreted the data. Author 8 and Author 9 assisted in data validation and contributed to the interpretation of results. Author 10 supervised the overall project and provided final approval of the manuscript. All authors contributed to the writing and approved the final version of the manuscript."
Disclosure statement
No potential conflict of interest was reported by the authors.
Funding
This work was fully funded by Aklan Catholic College, which also covered the Article Processing Charge (APC).
AI Declaration
The author declares the use of Artificial Intelligence (AI) tools in the preparation of this paper. Specifically, Claude AI was used to assist with content development and clarification, Grammarly for grammar and style improvements, and QuillBot for paraphrasing and rephrasing. The author takes full responsibility for ensuring proper review and editing of all contents generated using AI.
Notes
This paper has been presented in International Student Research Congress 2026.
Acknowledgement
The researchers sincerely express their heartfelt gratitude to Mr. Jobet S. Nerval for his invaluable assistance in developing the product and for his guidance throughout the study. We also extend our gratitude to the athletes and all participants for their valuable cooperation. Appreciation is given to our families, friends, and the school for their unwavering support in completing this research on the Development and Evaluation of an IoT-Based Wearable Heart Rate Monitoring System.
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Cite this article:
Agustin, S.P., Delgado, G.T., Franco, J.E.D., Himalay, S.E.P., Malihan, J.C.V., Yerro, J.J.M., Zabala, T.A.Z., Zonio, J.J.D., Arevalo, L.G. & Montuya, V.N.P. (2026). Development and evaluation of an Iot-based wearable heart rate monitoring system. International Student Research Review, 3(1), 1-21. https://doi.org/10.53378/isrr.211
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