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Comparing and Normalizing the Measurement of Step Counts and Heart Rates of Selected Wristbands and Smartwatches | IEEE Conference Publication | IEEE Xplore

Comparing and Normalizing the Measurement of Step Counts and Heart Rates of Selected Wristbands and Smartwatches


Abstract:

The usefulness and popularity of smartwatches in the marketplace has led to a large variety of brands and models, each utilizing different technologies and processing met...Show More

Abstract:

The usefulness and popularity of smartwatches in the marketplace has led to a large variety of brands and models, each utilizing different technologies and processing methods to detect physical activities and measure vital metrics. Consequently, the reported values of widely available metrics of heart rate and step count can exhibit significant variations across these devices compared to standard medical equipment. This research proposes a model to standardize these values using a medical-grade device as a reference for heart rate and a manual clicker for step count. Descriptive statistics reveal that while the detected median values of step count align closely with actual steps, there is a notable oscillation in the overall data distribution. Fitbit devices consistently report lower step counts with high variability, while Garmin devices demonstrate more accurate step counts. Fitbit devices provide more precise heart rate measurements, while Huawei's measurements are less so. A linear regression model is used to effectively refine smartwatch measurements across multiple models, achieving a high level of accuracy as compared to a medical-grade sensor. Gender does not significantly impact the modeling adjustments.
Date of Conference: 14-15 September 2023
Date Added to IEEE Xplore: 04 December 2023
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ISSN Information:

Conference Location: Samui Island, Thailand

I. Introduction

In today's fast-paced world, maintaining good health has become a top priority for many individuals. Health-conscious individuals are increasingly turning to smartwatches and wristbands as essential tools towards good health. These devices offer a range of features and functionalities, allowing users to conveniently track their exercise and health data. With capabilities such as workout reminders and measuring blood pressure, heart rate (HR) monitoring, measuring blood oxygen level, step counting, and sleep analysis, smartwatches have revolutionized the way we monitor our well-being [1], [2]. As a result, these digital devices have gained immense popularity, particularly among health enthusiasts who wear them consistently. In a survey conducted in 2019 [3], users of wearable devices were asked about their reasons for choosing to use this technology. The survey results revealed that the highest proportion, accounting for 60% of respondents, used wearable technology primarily for step tracking purposes. Additionally, 44% of respondents cited heart rate detection as their primary reason for using wearable technology, while 42% reported using it for tracking calories burned. Another reason mentioned by 40% of respondents was to track sleep patterns. These findings provide insights into the key motivations behind the adoption of wearable health devices among users.

References

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