A Smartwatch or Just a Watch? A Validation Study of the Smartwatch KC08 for Measuring Blood Pressure.

IF 3.4 3区综合性期刊 Q2 CHEMISTRY, ANALYTICAL

Sensors Pub Date : 2025-06-18 DOI:10.3390/s25123793

Susana López-Ortiz, Celia García-Chico, Lisa Musso-Daury, Sara González-Ustio, Saúl Peñín-Grandes, José Pinto-Fraga, Sergio Maroto-Izquierdo, Alejandro Santos-Lozano

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引用次数: 0

Abstract

(1) Background: The use of wearable cuffless devices has emerged as an out-of-office blood pressure (BP) monitor device to improve the management of hypertension. We aimed to validate a new, low-cost smartwatch for the measurement of BP and, secondarily, to assess its reliability for the measurement of blood oxygen saturation (SpO₂) and heart rate. (2) Methods: We compared 1000 pairs of measurements (n = 100) acquired by a smartwatch (KC08) with those measured by a reference device. (3) Results: A total of 100 participants (41 ± 18 years) completed the measurements. The values for the systolic and diastolic BP, heart rate and SpO₂ measured with the Smartwatch KC08 and the reference devices differed significantly (p < 0.05). In addition, the Smartwatch KC08 showed a low variability and poor reliability for all the assessed outcomes except for the heart rate. Moreover, no significant heteroscedasticity was observed for the heart rate measured by the Smartwatch KC08 and the reference sphygmomanometer. (4) Conclusions: The main findings of the present study suggest that the Smartwatch KC08 is not yet suitable for daily clinical practice, although it showed low intra-subject variability and reliability for the resting heart rate.

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智能手表还是普通手表？智能手表KC08测量血压的验证研究。

(1)背景：使用可穿戴式无袖带设备作为办公室外血压（BP）监测设备来改善高血压的管理。我们的目的是验证一种新的低成本智能手表用于测量血压，其次，评估其测量血氧饱和度（SpO2）和心率的可靠性。(2)方法：将智能手表（KC08）获得的1000对测量值（n = 100）与参考设备测量值进行比较。(3)结果：共100名参与者（41±18岁）完成了测量。KC08与参考装置测量的收缩压、舒张压、心率、SpO2值差异有统计学意义（p < 0.05）。此外，除了心率外，智能手表KC08在所有评估结果中表现出较低的可变性和较差的可靠性。此外，使用智能手表KC08测量的心率与参考血压计没有明显的异方差。(4)结论：本研究的主要发现表明，尽管智能手表KC08在静息心率方面显示出较低的受试者内变异性和可靠性，但尚不适合日常临床实践。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Sensors 工程技术-电化学

CiteScore

7.30

自引率

12.80%

发文量

8430

审稿时长

1.7 months

期刊介绍： Sensors (ISSN 1424-8220) provides an advanced forum for the science and technology of sensors and biosensors. It publishes reviews (including comprehensive reviews on the complete sensors products), regular research papers and short notes. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.