{"id":696,"date":"2022-07-27T12:36:38","date_gmt":"2022-07-27T07:06:38","guid":{"rendered":"https:\/\/wearablesdrop.com\/?p=696"},"modified":"2023-03-04T10:02:07","modified_gmt":"2023-03-04T04:32:07","slug":"how-sleep-tracking-works","status":"publish","type":"post","link":"https:\/\/wearablesdrop.com\/how-sleep-tracking-works\/","title":{"rendered":"How Does Sleep Tracking Works: Is it  Reliable?"},"content":{"rendered":"\n<p>We have come a long way, these days <a href=\"https:\/\/wearablesdrop.com\/category\/smartwatches\/\">we have smartwatches<\/a> that can measure everything from Heart rate, Spo2, Exercise activity, and even sleep tracking too. <\/p>\n\n\n\n<p>So today, let&#8217;s see how Sleep Tracking on a smartwatch or on a fitness tracker works? is it reliable at all or not?<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_61 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/wearablesdrop.com\/how-sleep-tracking-works\/#How_Does_Sleep_Tracking_Work\" title=\"How Does Sleep Tracking Work?\">How Does Sleep Tracking Work?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/wearablesdrop.com\/how-sleep-tracking-works\/#Should_you_Wear_Smartwatch_or_Fitness_Tracker_While_Sleeping\" title=\"Should you Wear Smartwatch or Fitness Tracker While Sleeping?\">Should you Wear Smartwatch or Fitness Tracker While Sleeping?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/wearablesdrop.com\/how-sleep-tracking-works\/#Can_Wearing_Smartwatch_at_Night_Affect_the_Sleep_or_Health\" title=\"Can Wearing Smartwatch at Night Affect the Sleep or Health?\">Can Wearing Smartwatch at Night Affect the Sleep or Health?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/wearablesdrop.com\/how-sleep-tracking-works\/#What_are_the_Benefits_of_Sleep_Tracking\" title=\"What are the Benefits of Sleep Tracking?\">What are the Benefits of Sleep Tracking?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/wearablesdrop.com\/how-sleep-tracking-works\/#Are_Smartwatches_Reliable\" title=\"Are Smartwatches Reliable?\">Are Smartwatches Reliable?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/wearablesdrop.com\/how-sleep-tracking-works\/#Conclusion\" title=\"Conclusion\">Conclusion<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_Does_Sleep_Tracking_Work\"><\/span>How Does Sleep Tracking Work?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>While you&#8217;re sleeping, the smartwatch will use a gyroscope, accelerometer, and even heart rate sensor to finger out your body poster and heart rate, after that, the smartwatch or even fitness Tracker will run all the tests and figure out how many hours you have slept.<\/p>\n\n\n\n<p>The gyroscope and accelerometer sensors help to track body movements. For example, whether you&#8217;re sitting, running, hand movement, etc.<\/p>\n\n\n\n<p>Some smartwatches also use the heart rate sensor to monitor heart rate fluctuation. The heart rate is lower when you\u2019re in a deep sleep. In short, by measuring the heart rate data, the watch will give you more accurate sleep data.<\/p>\n\n\n\n<p>When I was doing research for this article, I come across with <a href=\"https:\/\/help.fitbit.com\/articles\/en_US\/Help_article\/1314\" target=\"_blank\" rel=\"noreferrer noopener\">Fitbit website<\/a> and it says:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-style-default\"><p>When you haven\u2019t moved for about an hour, your device assumes that you\u2019re asleep. Additional data\u2014such as the length of time your movements are indicative of sleep behavior (such as rolling over)\u2014help confirm that you\u2019re asleep.<\/p><\/blockquote>\n\n\n\n<p>Also, some of the premium smartwatches use everything from heart rate sensor, SpO2 sensor, gyroscope, and accelerometer to give you slightly more accurate data.<\/p>\n\n\n\n<p><strong>Related<\/strong><a href=\"https:\/\/wearablesdrop.com\/how-spo2-sensor-works-in-smartwatch\/\">: How Does SpO2 Oxygen Sensor Work In Smartwatch<\/a><\/p>\n\n\n\n<p>Now, to do all the tasks at the same time smartwatch needs to have good sensors and that&#8217;s the main reason why we don&#8217;t get accurate sleep data in budget smartwatches.<\/p>\n\n\n\n<p>If you&#8217;re more curious about sleep then I would highly recommend you read <a href=\"https:\/\/amzn.to\/3BoNnb5\" target=\"_blank\" rel=\"noreferrer noopener\">Why We Sleep by Matthew Walker<\/a>, the book talks about everything about Sleep. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Should_you_Wear_Smartwatch_or_Fitness_Tracker_While_Sleeping\"><\/span>Should you Wear Smartwatch or Fitness Tracker While Sleeping?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Now, this is personal preference, some people don&#8217;t like to wear anything on hand while sleeping and some people do.<\/p>\n\n\n\n<p>If you ask me, I do wear <a rel=\"noreferrer noopener\" href=\"https:\/\/amzn.to\/3zeV15n\" target=\"_blank\">Fitbit <\/a>while sleeping because I want to know how much I sleep and the pattern of my sleep cycle.<\/p>\n\n\n\n<p>Also, if you feel uncomfortable while wearing a smartwatch then you can also use the Smart Rings which are dedicated made for sleep tracking, so if you&#8217;re concerned about your sleep then, try to use smart rings.<\/p>\n\n\n\n<p>In short, wear a smartwatch or fitness tracker for two or three nights and see the experience and if you feel uncomfortable then leave it&#8230;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Can_Wearing_Smartwatch_at_Night_Affect_the_Sleep_or_Health\"><\/span>Can Wearing Smartwatch at Night Affect the Sleep or Health?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>There is no official claim by any organization that wearing smartwatches or fitness trackers can harm your health or sleep cycle.<\/p>\n\n\n\n<p>Also, it&#8217;s not like we will wear smartwatches 24\/7, we will take bath or do any other activity, so you won&#8217;t face any problems while wearing a smartwatch while sleeping.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_are_the_Benefits_of_Sleep_Tracking\"><\/span>What are the Benefits of Sleep Tracking?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Tracking sleep can help you in different ways, let&#8217;s say, you&#8217;re feeling that I&#8217;m not getting enough sleep for days then you can just wear a smartwatch to monitor your sleep.<\/p>\n\n\n\n<p>Now, there are four sleep stages:<\/p>\n\n\n\n<p><strong>NREM Stage 1:<\/strong> This is the beginning stage when your body and brain will slow down, this brief period of sleep lasts for around five to 10 minutes.<\/p>\n\n\n\n<p><strong>NREM Stage 2:<\/strong> This is also called light sleep too, during this stage, your heart rate will slow down, and your eye movement stops. According to the <a href=\"https:\/\/www.sleepfoundation.org\/how-sleep-works\/stages-of-sleep\" target=\"_blank\" rel=\"noreferrer noopener\">American Sleep Foundation<\/a>, people spend approximately 50% of their total sleep time during NREM stage 2, which lasts for about 20 minutes per cycle.<\/p>\n\n\n\n<p><strong>NREM Stage 3: <\/strong>This stage is called deep sleep, during this stage, your muscles and brain are at complete rest. Slow brain waves known as delta waves begin to emerge during NREM stage 3 sleep and this stage is also referred to the delta sleep too.<\/p>\n\n\n\n<p><strong>REM Sleep:<\/strong> During REM sleep, your brain&#8217;s activity most closely resembles its activity during waking hours. This is that time when you have dreams. REM sleep begins approximately 90 minutes after falling asleep.<\/p>\n\n\n\n<p>Now, if you&#8217;re using any smartwatch then the smartwatch brand will give you an application where you will be able to see all the sleep stages while the app will also suggest you if you&#8217;re not having good sleep.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Are_Smartwatches_Reliable\"><\/span>Are Smartwatches Reliable?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>This depends on which smartwatch you&#8217;re using, if you&#8217;re a cheap smartwatch then there is a chance that you won&#8217;t get accurate sleep data but if you&#8217;re using good smartwatches then you will get close to accurate data.<\/p>\n\n\n\n<p>In my testing, the Apple, Fitbit, and Galaxy Watch provide close to accurate sleep data.<\/p>\n\n\n\n<p>Now, this doesn&#8217;t mean other brands don&#8217;t provide accurate data. in the end, it all depends on the quality of the sensor used by smartwatch companies.<\/p>\n\n\n\n<p>In short, do your research before you spend money on smartwatches.<\/p>\n\n\n\n<p>Or you can <a href=\"https:\/\/wearablesdrop.com\/category\/smartwatches\/\">visit this page<\/a> to find smartwatches within your budget.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>That was it, we have discussed everything that you need to know about how sleep Tracking. By the way, as I have said, the smartwatches won&#8217;t give any side effects, so there is nothing to worry about.<\/p>\n\n\n\n<p>Also, if you can, take off the smartwatch when you take bath or while doing any other activity. What I&#8217;m saying is don&#8217;t wear a smartwatch 24\/7.<\/p>\n\n\n\n<p>Still, Have questions? do let me know in the comments.<\/p>\n\n\n\t\t<div class=\"web-stories-list alignnone has-archive-link is-view-type-carousel is-style-default is-carousel\" data-id=\"1\">\n\t\t\t<div class=\"web-stories-list__inner-wrapper carousel-1\" style=\"--ws-story-max-width:185px\">\n\t\t\t\t\t\t\t\t\t<div class=\"web-stories-list__carousel carousel\" data-id=\"carousel-1\">\n\t\t\t\t\t\t\t\t\t<div class=\"web-stories-list__story\">\n\t\t\t\t\t\t\t<div class=\"web-stories-list__story-poster\">\n\t\t\t\t<a href=\"https:\/\/wearablesdrop.com\/web-stories\/how-does-your-smartwatch-knows-whether-youre-sitting-or-standing\/\">\n\t\t\t\t\t<img\n\t\t\t\t\t\tsrc=\"https:\/\/i0.wp.com\/wearablesdrop.com\/wp-content\/uploads\/2023\/01\/how-smartwatch-know-you-are-sitting-or-standing-part-01.jpg?fit=640%2C853&#038;ssl=1\"\n\t\t\t\t\t\talt=\"How Your Smartwatch Knows Whether You\u2019re Sitting Or Standing?\"\n\t\t\t\t\t\twidth=\"185\"\n\t\t\t\t\t\theight=\"308\"\n\t\t\t\t\t\t\t\t\t\t\t\t\tsrcset=\"https:\/\/i0.wp.com\/wearablesdrop.com\/wp-content\/uploads\/2023\/01\/how-smartwatch-know-you-are-sitting-or-standing-part-01.jpg?w=640&amp;ssl=1 640w, https:\/\/i0.wp.com\/wearablesdrop.com\/wp-content\/uploads\/2023\/01\/how-smartwatch-know-you-are-sitting-or-standing-part-01.jpg?resize=225%2C300&amp;ssl=1 225w, https:\/\/i0.wp.com\/wearablesdrop.com\/wp-content\/uploads\/2023\/01\/how-smartwatch-know-you-are-sitting-or-standing-part-01.jpg?resize=150%2C200&amp;ssl=1 150w\"\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tsizes=\"(max-width: 640px) 100vw, 640px\"\n\t\t\t\t\t\t\t\t\t\t\t\tloading=\"lazy\"\n\t\t\t\t\t\tdecoding=\"async\"\n\t\t\t\t\t>\n\t\t\t\t<\/a>\n\t\t\t<\/div>\n\t\t\t\t\t<div class=\"web-stories-list__story-content-overlay\">\n\t\t\t\t\t\t\t<div class=\"story-content-overlay__title\">\n\t\t\t\t\tHow Your Smartwatch Knows Whether You\u2019re Sitting Or Standing?\t\t\t\t<\/div>\n\t\t\t\n\t\t\t\n\t\t\t\t\t\t\t<div class=\"story-content-overlay__author\">\n\t\t\t\t\tBy Rahul Makwana\t\t\t\t<\/div>\n\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"web-stories-list__story\">\n\t\t\t\t\t\t\t<div class=\"web-stories-list__story-poster\">\n\t\t\t\t<a href=\"https:\/\/wearablesdrop.com\/web-stories\/noise-colorfit-pro-4-alpha-review-pros-cons\/\">\n\t\t\t\t\t<img\n\t\t\t\t\t\tsrc=\"https:\/\/i0.wp.com\/wearablesdrop.com\/wp-content\/uploads\/2023\/01\/Noise-Colorfit-Pro-4-Alpha-Review-10056.jpg?fit=640%2C853&#038;ssl=1\"\n\t\t\t\t\t\talt=\"Noise Colorfit Pro 4 Alpha Review: Only 1 Problem\"\n\t\t\t\t\t\twidth=\"185\"\n\t\t\t\t\t\theight=\"308\"\n\t\t\t\t\t\t\t\t\t\t\t\t\tsrcset=\"https:\/\/i0.wp.com\/wearablesdrop.com\/wp-content\/uploads\/2023\/01\/Noise-Colorfit-Pro-4-Alpha-Review-10056.jpg?w=640&amp;ssl=1 640w, https:\/\/i0.wp.com\/wearablesdrop.com\/wp-content\/uploads\/2023\/01\/Noise-Colorfit-Pro-4-Alpha-Review-10056.jpg?resize=225%2C300&amp;ssl=1 225w, https:\/\/i0.wp.com\/wearablesdrop.com\/wp-content\/uploads\/2023\/01\/Noise-Colorfit-Pro-4-Alpha-Review-10056.jpg?resize=150%2C200&amp;ssl=1 150w\"\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tsizes=\"(max-width: 640px) 100vw, 640px\"\n\t\t\t\t\t\t\t\t\t\t\t\tloading=\"lazy\"\n\t\t\t\t\t\tdecoding=\"async\"\n\t\t\t\t\t>\n\t\t\t\t<\/a>\n\t\t\t<\/div>\n\t\t\t\t\t<div class=\"web-stories-list__story-content-overlay\">\n\t\t\t\t\t\t\t<div class=\"story-content-overlay__title\">\n\t\t\t\t\tNoise Colorfit Pro 4 Alpha Review: Only 1 Problem\t\t\t\t<\/div>\n\t\t\t\n\t\t\t\n\t\t\t\t\t\t\t<div class=\"story-content-overlay__author\">\n\t\t\t\t\tBy Rahul Makwana\t\t\t\t<\/div>\n\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"web-stories-list__story\">\n\t\t\t\t\t\t\t<div class=\"web-stories-list__story-poster\">\n\t\t\t\t<a href=\"https:\/\/wearablesdrop.com\/web-stories\/how-does-esim-work-in-a-smartwatch\/\">\n\t\t\t\t\t<img\n\t\t\t\t\t\tsrc=\"https:\/\/i0.wp.com\/wearablesdrop.com\/wp-content\/uploads\/2022\/12\/How-eSIM-work-in-a-Smartwatch-1001.jpg?fit=640%2C853&#038;ssl=1\"\n\t\t\t\t\t\talt=\"What Is ESIM And How It Work In Smartwatch?\"\n\t\t\t\t\t\twidth=\"185\"\n\t\t\t\t\t\theight=\"308\"\n\t\t\t\t\t\t\t\t\t\t\t\t\tsrcset=\"https:\/\/i0.wp.com\/wearablesdrop.com\/wp-content\/uploads\/2022\/12\/How-eSIM-work-in-a-Smartwatch-1001.jpg?w=640&amp;ssl=1 640w, https:\/\/i0.wp.com\/wearablesdrop.com\/wp-content\/uploads\/2022\/12\/How-eSIM-work-in-a-Smartwatch-1001.jpg?resize=225%2C300&amp;ssl=1 225w, https:\/\/i0.wp.com\/wearablesdrop.com\/wp-content\/uploads\/2022\/12\/How-eSIM-work-in-a-Smartwatch-1001.jpg?resize=150%2C200&amp;ssl=1 150w\"\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tsizes=\"(max-width: 640px) 100vw, 640px\"\n\t\t\t\t\t\t\t\t\t\t\t\tloading=\"lazy\"\n\t\t\t\t\t\tdecoding=\"async\"\n\t\t\t\t\t>\n\t\t\t\t<\/a>\n\t\t\t<\/div>\n\t\t\t\t\t<div class=\"web-stories-list__story-content-overlay\">\n\t\t\t\t\t\t\t<div class=\"story-content-overlay__title\">\n\t\t\t\t\tWhat Is ESIM And How It Work In Smartwatch?\t\t\t\t<\/div>\n\t\t\t\n\t\t\t\n\t\t\t\t\t\t\t<div class=\"story-content-overlay__author\">\n\t\t\t\t\tBy Rahul Makwana\t\t\t\t<\/div>\n\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"web-stories-list__story\">\n\t\t\t\t\t\t\t<div class=\"web-stories-list__story-poster\">\n\t\t\t\t<a href=\"https:\/\/wearablesdrop.com\/web-stories\/amazfit-pop-2-review\/\">\n\t\t\t\t\t<img\n\t\t\t\t\t\tsrc=\"https:\/\/i0.wp.com\/wearablesdrop.com\/wp-content\/uploads\/2022\/11\/Amazfit-Pop-2-review-Image-10.jpg?fit=640%2C853&#038;ssl=1\"\n\t\t\t\t\t\talt=\"Amazfit Pop 2 Review &#8211; Only 1 Problem\"\n\t\t\t\t\t\twidth=\"185\"\n\t\t\t\t\t\theight=\"308\"\n\t\t\t\t\t\t\t\t\t\t\t\t\tsrcset=\"https:\/\/i0.wp.com\/wearablesdrop.com\/wp-content\/uploads\/2022\/11\/Amazfit-Pop-2-review-Image-10.jpg?w=640&amp;ssl=1 640w, https:\/\/i0.wp.com\/wearablesdrop.com\/wp-content\/uploads\/2022\/11\/Amazfit-Pop-2-review-Image-10.jpg?resize=225%2C300&amp;ssl=1 225w, https:\/\/i0.wp.com\/wearablesdrop.com\/wp-content\/uploads\/2022\/11\/Amazfit-Pop-2-review-Image-10.jpg?resize=150%2C200&amp;ssl=1 150w\"\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tsizes=\"(max-width: 640px) 100vw, 640px\"\n\t\t\t\t\t\t\t\t\t\t\t\tloading=\"lazy\"\n\t\t\t\t\t\tdecoding=\"async\"\n\t\t\t\t\t>\n\t\t\t\t<\/a>\n\t\t\t<\/div>\n\t\t\t\t\t<div class=\"web-stories-list__story-content-overlay\">\n\t\t\t\t\t\t\t<div class=\"story-content-overlay__title\">\n\t\t\t\t\tAmazfit Pop 2 Review &#8211; Only 1 Problem\t\t\t\t<\/div>\n\t\t\t\n\t\t\t\n\t\t\t\t\t\t\t<div class=\"story-content-overlay__author\">\n\t\t\t\t\tBy Rahul Makwana\t\t\t\t<\/div>\n\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"web-stories-list__story\">\n\t\t\t\t\t\t\t<div class=\"web-stories-list__story-poster\">\n\t\t\t\t<a href=\"https:\/\/wearablesdrop.com\/web-stories\/how-spo2-oxygen-sensor-work-in-smartwatch\/\">\n\t\t\t\t\t<img\n\t\t\t\t\t\tsrc=\"https:\/\/i0.wp.com\/wearablesdrop.com\/wp-content\/uploads\/2022\/11\/How-SpO2-Oxygen-Sensor-Work-In-Smartwatch-69.jpg?fit=640%2C853&#038;ssl=1\"\n\t\t\t\t\t\talt=\"How SpO2 Oxygen Sensor Work In Smartwatch?\"\n\t\t\t\t\t\twidth=\"185\"\n\t\t\t\t\t\theight=\"308\"\n\t\t\t\t\t\t\t\t\t\t\t\t\tsrcset=\"https:\/\/i0.wp.com\/wearablesdrop.com\/wp-content\/uploads\/2022\/11\/How-SpO2-Oxygen-Sensor-Work-In-Smartwatch-69.jpg?w=640&amp;ssl=1 640w, https:\/\/i0.wp.com\/wearablesdrop.com\/wp-content\/uploads\/2022\/11\/How-SpO2-Oxygen-Sensor-Work-In-Smartwatch-69.jpg?resize=225%2C300&amp;ssl=1 225w, https:\/\/i0.wp.com\/wearablesdrop.com\/wp-content\/uploads\/2022\/11\/How-SpO2-Oxygen-Sensor-Work-In-Smartwatch-69.jpg?resize=150%2C200&amp;ssl=1 150w\"\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tsizes=\"(max-width: 640px) 100vw, 640px\"\n\t\t\t\t\t\t\t\t\t\t\t\tloading=\"lazy\"\n\t\t\t\t\t\tdecoding=\"async\"\n\t\t\t\t\t>\n\t\t\t\t<\/a>\n\t\t\t<\/div>\n\t\t\t\t\t<div class=\"web-stories-list__story-content-overlay\">\n\t\t\t\t\t\t\t<div class=\"story-content-overlay__title\">\n\t\t\t\t\tHow SpO2 Oxygen Sensor Work In Smartwatch?\t\t\t\t<\/div>\n\t\t\t\n\t\t\t\n\t\t\t\t\t\t\t<div class=\"story-content-overlay__author\">\n\t\t\t\t\tBy Rahul Makwana\t\t\t\t<\/div>\n\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<div tabindex=\"0\" aria-label=\"Previous\" class=\"glider-prev\"><\/div>\n\t\t\t\t\t<div tabindex=\"0\" aria-label=\"Next\" class=\"glider-next\"><\/div>\n\t\t\t\t\t\t\t<div class=\"web-stories-list__archive-link\">\n\t\t\t<a href=\"https:\/\/wearablesdrop.com\/web-stories\/\">\n\t\t\t\tView all stories\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\n\n<style>.kb-row-layout-wrap.wp-block-kadence-rowlayout.kb-row-layout-id59_ad83db-0a{margin-bottom:30px;}.kb-row-layout-id59_ad83db-0a > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id59_ad83db-0a > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id59_ad83db-0a > .kt-row-column-wrap{column-gap:var(--global-kb-gap-md, 2rem);row-gap:var(--global-kb-gap-md, 2rem);padding-top:24px;padding-bottom:24px;grid-template-columns:minmax(0, 1fr);}.kb-row-layout-id59_ad83db-0a{border-top-left-radius:14px;border-top-right-radius:14px;border-bottom-right-radius:14px;border-bottom-left-radius:14px;overflow:hidden;isolation:isolate;border-top:2px solid var(--global-palette7, #EDF2F7);border-right:2px solid var(--global-palette7, #EDF2F7);border-bottom:2px solid var(--global-palette7, #EDF2F7);border-left:2px solid var(--global-palette7, #EDF2F7);}.kb-row-layout-id59_ad83db-0a > .kt-row-layout-overlay{opacity:0.30;}@media all and (max-width: 1024px){.kb-row-layout-id59_ad83db-0a > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}@media all and (max-width: 1024px){.kb-row-layout-id59_ad83db-0a{border-top:2px solid var(--global-palette7, #EDF2F7);border-right:2px solid var(--global-palette7, #EDF2F7);border-bottom:2px solid var(--global-palette7, #EDF2F7);border-left:2px solid var(--global-palette7, #EDF2F7);}}@media all and (max-width: 767px){.kb-row-layout-id59_ad83db-0a > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}.kb-row-layout-id59_ad83db-0a{border-top:2px solid var(--global-palette7, #EDF2F7);border-right:2px solid var(--global-palette7, #EDF2F7);border-bottom:2px solid var(--global-palette7, #EDF2F7);border-left:2px solid var(--global-palette7, #EDF2F7);}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id59_ad83db-0a alignnone has-theme-palette8-background-color kt-row-has-bg wp-block-kadence-rowlayout\"><div class=\"kt-row-column-wrap kt-has-1-columns kt-row-layout-equal kt-tab-layout-inherit kt-mobile-layout-row kt-row-valign-top\">\n<style>.kadence-column59_00ddee-88 > .kt-inside-inner-col,.kadence-column59_00ddee-88 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column59_00ddee-88 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column59_00ddee-88{position:relative;}<\/style>\n<div class=\"wp-block-kadence-column kadence-column59_00ddee-88\"><div class=\"kt-inside-inner-col\">\n<p><em>To get up to date with tech, do follow us\u00a0at\u00a0<a href=\"https:\/\/mobiledrop.in\/\" target=\"_blank\" rel=\"noreferrer noopener\">MobileDrop<\/a>. <\/em>L<em>ove to read books, say hi to me at <a href=\"https:\/\/bookiestalk.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">bookiestalk.<\/a> Save money with us on <a href=\"https:\/\/t.me\/topbestinINDIA\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Telegram<\/a>&#8230;<\/em><\/p>\n<\/div><\/div>\n\n<\/div><\/div>\n\n<style>.kb-row-layout-id543_83ee3b-50 > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id543_83ee3b-50 > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id543_83ee3b-50 > .kt-row-column-wrap{column-gap:var(--global-kb-gap-md, 2rem);row-gap:var(--global-kb-gap-md, 2rem);padding-top:var(--global-kb-spacing-sm, 1.5rem);padding-bottom:var(--global-kb-spacing-sm, 1.5rem);grid-template-columns:minmax(0, 1fr);}.kb-row-layout-id543_83ee3b-50{border-top-left-radius:14px;border-top-right-radius:14px;border-bottom-right-radius:14px;border-bottom-left-radius:14px;overflow:hidden;isolation:isolate;border-top:2px solid var(--global-palette7, #EDF2F7);border-right:2px solid var(--global-palette7, #EDF2F7);border-bottom:2px solid var(--global-palette7, #EDF2F7);border-left:2px solid var(--global-palette7, #EDF2F7);}.kb-row-layout-id543_83ee3b-50 > .kt-row-layout-overlay{opacity:0.30;}@media all and (max-width: 1024px){.kb-row-layout-id543_83ee3b-50 > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}@media all and (max-width: 1024px){.kb-row-layout-id543_83ee3b-50{border-top:2px solid var(--global-palette7, #EDF2F7);border-right:2px solid var(--global-palette7, #EDF2F7);border-bottom:2px solid var(--global-palette7, #EDF2F7);border-left:2px solid var(--global-palette7, #EDF2F7);}}@media all and (max-width: 767px){.kb-row-layout-id543_83ee3b-50 > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}.kb-row-layout-id543_83ee3b-50{border-top:2px solid var(--global-palette7, #EDF2F7);border-right:2px solid var(--global-palette7, #EDF2F7);border-bottom:2px solid var(--global-palette7, #EDF2F7);border-left:2px solid var(--global-palette7, #EDF2F7);}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id543_83ee3b-50 alignnone has-theme-palette8-background-color kt-row-has-bg wp-block-kadence-rowlayout\"><div class=\"kt-row-column-wrap kt-has-1-columns kt-row-layout-equal kt-tab-layout-inherit kt-mobile-layout-row kt-row-valign-top\">\n<style>.kadence-column543_ea6a7d-41 > .kt-inside-inner-col,.kadence-column543_ea6a7d-41 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column543_ea6a7d-41 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column543_ea6a7d-41{position:relative;}<\/style>\n<div class=\"wp-block-kadence-column kadence-column543_ea6a7d-41\"><div class=\"kt-inside-inner-col\">\n<p><strong>Related: <\/strong><\/p>\n\n\n\n<ul>\n<li><a href=\"https:\/\/wearablesdrop.com\/best-smartwatches-under-rs-2000\/\">5 Best Smartwatches Under Rs 2000<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/wearablesdrop.com\/best-smartwatches-under-rs-3000\/\">5 Best Smartwatches Under Rs 3000<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/wearablesdrop.com\/best-smartwatches-under-rs-5000\/\">5 Best Smartwatches Under Rs 5000<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/wearablesdrop.com\/bluetooth-calling-smartwatches-under-rs-5000\/\">5 Best Bluetooth Calling Smartwatches Under Rs 5000<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/wearablesdrop.com\/best-smartwatches-under-rs-10000\/\">5 Best Smartwatches Under Rs 10000<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/wearablesdrop.com\/best-smartwatches-under-rs-15000\/\">5 Best Smartwatches Under Rs 15000<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/wearablesdrop.com\/best-smartwatches-for-kids\/\">3 Best Smartwatches for Kids in India<\/a><\/li>\n<\/ul>\n<\/div><\/div>\n\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>We have come a long way, these days we have smartwatches that can measure everything from Heart rate, Spo2, Exercise activity, and even sleep tracking too. So today, let&#8217;s see how Sleep Tracking on a smartwatch or on a fitness tracker works? is it reliable at all or not? How Does Sleep Tracking Work? While&#8230;<\/p>\n","protected":false},"author":1,"featured_media":703,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ub_ctt_via":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[208],"tags":[64,227,229,242,228,11],"featured_image_src":"https:\/\/i0.wp.com\/wearablesdrop.com\/wp-content\/uploads\/2022\/07\/How-Sleep-Tracking-Works_Featured.jpg?fit=1200%2C675&ssl=1","author_info":{"display_name":"Rahul Makwana","author_link":"https:\/\/wearablesdrop.com\/author\/rahul\/"},"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/i0.wp.com\/wearablesdrop.com\/wp-content\/uploads\/2022\/07\/How-Sleep-Tracking-Works_Featured.jpg?fit=1200%2C675&ssl=1","_links":{"self":[{"href":"https:\/\/wearablesdrop.com\/wp-json\/wp\/v2\/posts\/696"}],"collection":[{"href":"https:\/\/wearablesdrop.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wearablesdrop.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wearablesdrop.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wearablesdrop.com\/wp-json\/wp\/v2\/comments?post=696"}],"version-history":[{"count":9,"href":"https:\/\/wearablesdrop.com\/wp-json\/wp\/v2\/posts\/696\/revisions"}],"predecessor-version":[{"id":1286,"href":"https:\/\/wearablesdrop.com\/wp-json\/wp\/v2\/posts\/696\/revisions\/1286"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wearablesdrop.com\/wp-json\/wp\/v2\/media\/703"}],"wp:attachment":[{"href":"https:\/\/wearablesdrop.com\/wp-json\/wp\/v2\/media?parent=696"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wearablesdrop.com\/wp-json\/wp\/v2\/categories?post=696"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wearablesdrop.com\/wp-json\/wp\/v2\/tags?post=696"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}