{"id":162121,"date":"2025-06-06T05:22:12","date_gmt":"2025-06-06T05:22:12","guid":{"rendered":"https:\/\/www.europesays.com\/uk\/162121\/"},"modified":"2025-06-06T05:22:12","modified_gmt":"2025-06-06T05:22:12","slug":"peer-reviewed-study-puts-apple-watch-fitness-tracking-to-the-test-heres-the-takeaway","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/uk\/162121\/","title":{"rendered":"Peer-reviewed study puts Apple Watch fitness tracking to the test: Here’s the takeaway"},"content":{"rendered":"

A peer-reviewed meta-analysis published recently provides potential answers for Apple Watch users who have questioned the accuracy of their Activity Ring data.The researchers at the University of Mississippi<\/a> examined 56 studies which measured Apple Watch performance against medical-grade devices and obtained both positive and warning signals<\/a>.Heart rate and step count<\/p>\n

\"Apple <\/p>\n

Apple Watches tend to have some of the best heart rate tracking among wearables. | Image by PhoneArena<\/p>\n

Let’s start with the good news first. According to the findings, Apple Watches are highly accurate when it comes to tracking heart rate and counting steps.\u00a0This is in line with our own experience with Apple Watches, including during our Apple Watch Series 10 review<\/a> (Apple’s latest smartwatch).<\/p>\n

The mean absolute percent error (MAPE) for these metrics in the meta-analysis was just 4.43% for heart rate and 8.17% for step count \u2014 both well below the 10% threshold typically used to define excellent performance in consumer wearables.<\/p>\n

The researchers also noted that newer Apple Watch models performed better across the board. While the study doesn’t specify model-by-model results, doctoral student Ju-Pil Choe (one of the study authors) says:<\/p>\n

While we cannot say every update is a big leap forward, there is a noticeable trend of gradual improvements over time. It shows that Apple<\/a> is refining the technology over time.Calories burned is still a weak spot<\/p>\n

\"Smartwatches <\/p>\n

Smartwatches are still not that great at tracking calories, but that doesn’t mean you can’t use them for motivation. | Image by PhoneArena<\/p>\n

But not all metrics scored so well. The study found that estimates of energy expenditure \u2014 aka how many calories you burn \u2014 were far less reliable. The average error rate here jumped to 27.96%, with inaccuracies present across various activities, including walking, running, cycling, and high-intensity workouts.<\/p>\n

That puts Apple Watch roughly on par with other wearables, like the Fitbit Surge, which also struggles with calorie estimates. This shouldn’t come as a surprise, though, as it is an extremely difficult task to measure calories burned. There are all kinds of things to factor in like body weight, movement type, metabolic efficiency, and even skin tone.<\/p>\n

Smartwatches often rely on general algorithms that combine heart rate data, sensor input, and user profile info to estimate calorie burn. But that process leaves plenty of room for error. Other studies have found that calorie estimates on wearables can be off by as much as 40% to 80%, depending on the device and activity.<\/p>\n

The bottom line<\/p>\n

Use the Apple Watch \u2014 or any smartwatch, for that matter \u2014 as a guide, not gospel.<\/p>\n

The University of Mississippi study provides a helpful reality check: Apple Watches are excellent at tracking heart rate and step count but should not be relied on for precise calorie measurements.Personally, I find a smartwatch most valuable as a way to log workouts and monitor consistency. There\u2019s something genuinely motivating about seeing your progress visualized, whether it\u2019s a graph of completed runs or a streak of active days.That said, I\u2019ve also left my watch behind on occasion, and there\u2019s a certain freedom in it. Without the pressure of stats or metrics, you start to tune into how your body feels in the moment \u2014 and sometimes, that\u2019s exactly the kind of workout you need.<\/p>\n

View Full Bio<\/p>\n

\n Aleksandar is a tech enthusiast with a broad range of interests, from smartphones to space exploration. His curiosity extends to hands-on DIY experiments with his gadgets, and he enjoys switching between different brands to experience the latest innovations. Prior to joining PhoneArena, Aleksandar worked on the Google Art Project, digitizing valuable artworks and gaining diverse perspectives on technology. When he’s not immersed in tech, Aleksandar is an outdoorsman who enjoys mountain hikes, wildlife photography, and nature conservation. His interests also extend to martial arts, running, and snowboarding, reflecting his dynamic approach to life and technology.\n <\/p>\n

Read the latest from Aleksandar Anastasov<\/p>\n","protected":false},"excerpt":{"rendered":"A peer-reviewed meta-analysis published recently provides potential answers for Apple Watch users who have questioned the accuracy of…\n","protected":false},"author":2,"featured_media":162122,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3160],"tags":[1685,53,16,15],"class_list":{"0":"post-162121","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-gadgets","8":"tag-gadgets","9":"tag-technology","10":"tag-uk","11":"tag-united-kingdom"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@uk\/114634748550777985","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts\/162121","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/comments?post=162121"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts\/162121\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/media\/162122"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/media?parent=162121"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/categories?post=162121"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/tags?post=162121"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}