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How To Track Your Sleep On Fitbit Charge 2

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Recent Studies Have Investigated The Usefulness Of Fitbit Charge 2 For Clinical Sleep Tracking

The polysomnography has long been the gold standard in sleep tracking for assessing sleep-wake state patterns and at a deeper level, the composition of sleep stages, recent research has investigated the use of Fitbit Charge 2 for clinical sleep tracking.

A typical sleep progression begins with two stages of light sleep moving into a deep sleep, followed by rapid-eye-movement sleep in which dreams and memories form. Healthy adults will cycle through non-REM sleep and REM sleep multiple times a night.

Each sleep stage has specific brain wave, muscle and eye activity that allows researchers to detect when a person has entered each stage of sleep and to measure for how long they are in each stage. Polysomnography’s sleep data is obtained through the use of multiple technologies including electroencephalographic to measure brain waves, electromyographic to measure muscle activity, and electrooculographic to measure eye activity which ensures its validity.

However, consumer wearable devices such as the Fitbit device are gaining traction as a less expensive and less intrusive option to collect sleep data from patients. Already commercially available for the general population, the adoption of Fitbit devices to automatically detect and store sleep data via the Fitbit app would allow for sleep analyses to occur outside of traditional sleep laboratories. In this way, Fitbit devices would reduce costs and increase accessibility of sleep tracking for patients.


Fitbit Inspire 2 Review: A Solid Value Choice For Tracking Wellness And Sleep Stats

The Fitbit Inspire 2 delivers useful wellness features for a very reasonable price. Here’s our review

The Fitbit Inspire 2 is a simple to set up and use sleep tracker that also works well as an all-day tracker too. You’ll need Fitbit Premium to get the most from its stats, but it’s worth the investment if you’re serious about seeing how stress and sleep affects your daily life.

  • Comprehensive sleep tracking for price

The Fitbit Inspire 2 is Fitbit’s more budget-friendly offering amongst its wide selection of trackers and smartwatches. As one of the best sleep trackers, it stands out thanks to being so lightweight and comfortable to wear and – of course – being able to track your sleeping patterns effectively too. 

It’s a little basic in places, lacking GPS and Fitbit Pay support. Also, we’re not huge fans of its tiny 1.4-inch OLED display but as a simple way to track the basics and help you monitor your stress levels too, it’s refreshingly straightforward. That’s further helped by its 10-day battery life which means you won’t have to think too hard about maintaining it either. 

While the best Fitbit for everyone remains the now-ageing Fitbit Versa 3 if you can stretch that far or the Fitbit Charge 4, the Fitbit Inspire 2 is still a good bet if money is tight or you simply don’t want to invest in anything too feature-rich. Especially if you find a cheap Fitbit deal on it. 

Fitbit Sleep Score: What It Is How It Works And Which Features May Come Soon

Learn moreConor Allison

Fitbit is the best in the business at tracking sleep from the wrist, and it’s now even more simple and effective with the addition of Sleep Score.

Those with Fitbit trackers have long been able to access Sleep Stages graphs and breakdowns, but Sleep Score condenses all the information from your night’s sleep and spits it out as a round figure.

If you’re new to the Fitbit app or Sleep Score, though, you might have a few questions. Below, we’ll explain what a good score is, how you can improve it and more features that could come soon.

Whats The Difference Between Resting Heart Rate And Sleeping Heart Rate

Your resting heart rate is the number of times your heart beats per minute when you are still and well-rested. Your resting heart rate is estimated each day. Your sleeping heart rate is detected continuously throughout the night.

How can I improve my sleep score in the Fitbit app?

To help improve your sleep score, work on your overall sleep habits, heart health, and activity levels:

  • Exercise earlier in the day or at least 3 to 4 hours before you go to sleep .

How To Change The Metric Units Your Fitbit Registers Your Activity In

Fitbit Charge 2 review: a promising fitness tracker ...

Tap on the Account icon in the top left of the Today tab > App Settings > Units > Choose between centimetres and kilometres or feet and miles, kilograms, pounds or stone, ounces or millilitres and metres or yard for swimming. It’s worth noting that only the Flex 2, Inspire trackers, Charge 3 and 4, Luxe, Versa trackers, Ionic and Sense are swim proof.

Fitbit Is Adding Deeper Sleep Tracking And Guidance To Its Trackers

Sleep Stages and Sleep Insights, designed to help you catch better zzz’s, will begin rolling out in the coming weeks.

Fitbit hopes to help you get a better night’s sleep with these new features.

Feeling fit isn’t all about steps and calorie burn. A good night’s sleep plays a critical role in your health and overall well being.

That’s why Fitbit is adding new features to its trackers that provide more insight on your sleeping habits and guidance on how to improve them.

The health and wellness company on Monday announced two new sleeping tools that will be coming to its existing products.

The first, Sleep Stages, will utilize the optical heart-rate sensor to estimate how long you spend in light, deep and REM sleep cycles, as well as how frequently you wake up in the middle of the night. Sleep Stages will be available on the Fitbit Charge 2, Blaze and the new Alta HR.

Sleep Insights shines a light on your sleeping patterns.

The second tool, known as Sleep Insights, will be available to all Fitbit trackers that are capable of tracking sleep. That includes the Fitbit One, Flex 2, Alta, Alta HR, Charge 2, Blaze and Surge, along with older trackers like the original Flex, Charge and Charge HR.

Sleep Stages and Sleep Insights will be available globally to Fitbit users in the coming weeks.

Tech Enabled: CNET chronicles tech’s role in providing new kinds of accessibility.

CNET Magazine: Check out a sampling of the stories you’ll find in CNET’s newsstand edition.

How To Select And Start A Specific Exercise On Your Fitbit Charge 2

Push the button on the left of your Fitbit Charge 2 until you get to the exercise option, which will be Run by default unless you change it. Tap below the display to flick through the various exercises, which include run, weights, treadmill, workout, elliptical, bike and interval workout, by default.

Push and hold the button on the left of the display to start tagging an exercise, and again to finish it. A summary will then appear in the weekly exercise section of the Dashboard.

Why Is Fitbit Showing Me My Sleep Pattern Instead Of Sleep Stages

According to Fitbit, there are a few scenarios where you’ll see a sleep pattern instead of the more detailed sleep stages data.

  • If you wear your Fitbit too loose. Wearing it too loose or in a position where it can’t get accurate heart-rate data will cause you to lose data. The company recommends wearing it 2-3 finger widths height on your wrist. It should feel secure but not tight.
  • If you didn’t sleep long enough. You must sleep at least 3 hours to get accurate data.
  • If you’re Fitbit’s battery is low.
  • If you used the Begin Sleep Now option. You don’t need to use this option. Instead you should just wear the device to bed.

How Much Sleep Do Fitbit Users Really Get A New Study Finds Out

The launch of Sleep Stages was a huge step forward in sleep research—for Fitbit users and scientists.

Available on Fitbit Alta HR, Blaze, and Charge 2, Sleep Stages uses motion detection and heart rate variability to estimate the amount of time users spend awake and in light, deep, and REM sleep each night. The result? Data that empowers Fitbit users to take control of their sleep quality and allows Fitbit scientists to dig deeper into the health effects of sleep.

“The ability to easily track your sleep not only helps individuals better understand their own sleep, it also unlocks significant potential for us to better understand population health and gain new insights into the mysteries of sleep and its connection to a variety of health conditions,” says Conor Heneghan, Ph.D., lead sleep research scientist at Fitbit.

With that in mind, researchers tapped Fitbit’s longitudinal sleep database—the most extensive in the world—to analyze millions of nights of Sleep Stages data* to determine how age, gender, and duration affect sleep quality.

The sleep study results are below. Open up your sleep log in the Fitbit app to see how your personal stats compare.

How Do I Track Blood Oxygen Saturation With My Fitbit Device

Your Fitbit smartwatch uses sensors to estimate your blood oxygen saturation while you sleep.

The Fitbit SpO2 feature is intended for general wellness purposes only and should not be used or relied on for any medical purposes. Consult your health care professional about any questions or health issues you may have.

To collect SpO2 data, install an SpO2 clock face or the SpO2 app .

To install an SpO2 clock face:


  • With your Fitbit device nearby, in the Fitbit app, tap the Today tab your profile picture your device image.
  • Tap Clock Faces.
  • Find the SpO2 clock face category. You might have to swipe up to find it. Tap to see the complete list of available clock faces.
  • Tap the clock face you want to install InstallInstall.
  • The SpO2 clock faces are only available in certain countries at this time. If you don’t see them in the Clock Face Gallery, the feature isn’t available in your region.For more information on the availability of Fitbit SpO2, see

    If you have trouble adding an SpO2 clock face to your Fitbit device, make sure you update your watch to run the latest version of Fitbit OS. For instructions, see How do I update my Fitbit device?

    To install the SpO2 app :

  • With your Fitbit device nearby, in the Fitbit app, tap the Today tab your profile picture
  • Tap the magnifying glass icon and search for “SpO2 Tracker”.
  • In the results, tap SpO2 Tracker InstallInstall.
  • Charge 4

    If you removed the SpO2 app from your device, reinstall it in the Fitbit app on your phone:

    Charge 4

    How To Set A Specific Goal For Exercise On Your Inspire Hr

    Some exercises allow you to set a distance, calories or time goal. Swipe from top to bottom from the main home screen > select Exercise > swipe down to the exercise you want to do and tap on it. If the Set Goal feature is available it will be below the start option. Tap on Set Goal and select which goal you want. This feature is not available on the Inspire.

    How To Customise Interval Workouts On Your Fitbit Charge 2

    Open the Fitbit app > click on the Today tab > click on your profile icon in the top left corner followed by Charge 2 under your name > scroll down to Exercise Shortcuts > Interval Workout > choose whether you want connected GPS on or off, how many repeats you want to do and set your move and rest times.

    How To Get A Deeper Analysis Of Your Sleep On The Alta Hr

    Fitbit Charge 2 review: The best Fitbit yet

    The Alta HR measures time asleep, REM, light and deep sleep stages. It will also give you a run down as to why each of these stages is important. Open the Fitbit app > click on the sleep tile within Today > tap on the day you want more analysis of.

    You’ll see lots of data if you scroll down, including a 30-day average and benchmark if you tap on the relevant tabs under Sleep Stages. You can also tap on the graph at the top for a breakdown of the stages.

    How To Use The Fitbit Blaze To Turn Your Music Up Or Down

    When in exercise mode on the Fitbit Blaze, if you want to control the volume of your music, hold the top right button down for three seconds. You’ll then be able to pause, play and skip tracks as well as use the top and bottom right buttons to adjust the music level when in the music control screen.

    Fitbit Not Tracking Sleep Or Is Not Accurate Lets Fix It

    Fitbits are a great option if you want an insight into your sleep habits.

    All Fitbit trackers except the Fitbit Zip monitor your sleep patterns, detecting how much time you spend awake, restless, and asleep.

    If you own a newer version of Fitbit with a heart rate sensor, you get an even more detailed sleep report, showing light, deep, and REM sleep time.

    These Fitbits use your movement and heart rate information to estimate how long you spend in light, deep, and Rapid Eye Movement sleep each night.

    But what if the device on your wrist is not tracking sleep properly? Or it’s inconsistent or even inaccurate?

    Does your Fitbit say you’ve only had 2 hours of sleep when in reality, you’ve know you’ve had 8? Or perhaps your sleep stages or sleep score are not showing?

    If that sounds like your Fitbit and the Fitbit app, we’ve got some great troubleshooting tips that should get your Fitbit tracking your sleep accurately AND consistently!

    How To Use Sleep Tracking On Fitbit Charge 3 & Charge 4

    How ToMadhav Biradar

    Sleep tracking is always an essential factor for users to choose a wearable band. Most of the customers want to track their sleep patterns and sleep scores each morning. The fitness bands or smartwatches have now become more advanced in monitoring your sleep and advise you on how to improve your daily sleep. Fitbit Charge 3& Charge 4 are such devices to track your sleep accurately. Charge 4 is a new & advanced tracker that comes with improved tracking.

    Also, the sleep data in your Fitbit app detect blood oxygen saturation, which means it tells you oxygen level in your body. You just don’t compare the sleep tracking of your Fitbit Charge with Fitbit Versa 3 or Fitbit Sense as they are new and more expensive.

    The Fitbit app has a sleep section to sync the sleep history of your Charge 3 & Charge 4. The sleep score divided in asleep, restless & time spent awake patterns. All the Fitbit devices come with advanced sensors, and you don’t have to enable sleep tracking from the app. By default, the Fitbit wearable will track your sleep pattern, and then each morning, you can sync it with the Fitbit app.

    To use the sleep tracking on Fitbit Charge 3 & Charge 4, follow this guide. First, download & install the Fitbit app on your paired smartphone so you could sync your sleep data with the app. After that, follow these steps.

    How To See A Breakdown Of Your Daily Activity On Fitbit

    Select the metric you want to see more information on from the Today tab, such as steps. This will bring up a summary in a list format of your entire history by day of that particular metric.

    The graph at the top presets a weekly summary but a further tap on any of the days listed will give you an hourly summary for that day in a graph. You can also hold down on a particular hour to see the information in number format for 15-minute intervals.

    How To Improve Your Fitbit Sleep Score And Your Habits

    If your results are not the best, you might be asking how to improve your Fitbit Sleep Score and your sleeping habits along with it. The obvious applies. One of the best things you can do is have a regular sleep schedule and get at least seven hours of sleep every night. This will positively affect your mood and concentration and improve your score — 50% of the Fitbit Sleep Score is based on the time you spend asleep.

    The National Sleep Foundation also recommends avoiding afternoon naps, having a relaxing bedtime routine, and exercising regularly. On the other hand, Fitbit claims exercising earlier in the day will have a positive effect on your sleep. It also recommends tracking your caffeine intake and using the Relax app to wind down before going to bed.

    How To Change Your Fitbits Sleep Sensitivity Settings

  • Open the Fitbit app and tap the Today tab.
  • Tap your profile picture or icon, then scroll down to the Settings heading
  • Find it just after the wording to ‘+ Set Up a Device, and Shop Fitbit.
  • Choose Activity & Wellness, usually the first one on that list.
  • Select Sleep from the list of options.
  • Scroll to the bottom and choose Sleep Sensitivity.
  • Choose Sensitive instead of Normal.
  • If Sensitive is the current option, try Normal.
  • For older FitbitOS versions

  • Open the Fitbit app and choose the Accounts tab.
  • If you don’t see accounts as a tab, choose the Today tab, and tap your profile icon or picture.
  • Tap Advanced Settings.
  • Tap on Sleep Sensitivity and choose from the available options.
  • Setting A Sleep Schedule And Reminders To Stick To It

    One of the things I really liked during the month is the option to set a sleep goal / schedule and then get reminders to stick to it.

    In the App settings, you can input your target sleep schedule. Since I’m a bit of a night owl, I went with bedtime at 12:30 a.m. and wake up at 8:30 a.m.

    You can limit the days for your schedule if you like, but I know I personally benefit from a regular 7 day a week pattern.

    Following that, you can ask for a reminder to help you wind down for sleep, which I set an hour before at 11:30 p.m.

    Every night I then received both a notification on my phone and a vibrating reminder on my wrist to encourage me to stick to that bedtime. And in theory, start winding down by putting aside any late night work, and reading a book or relaxing rather than watching the next episode of my favorite TV series.

    I found this a very helpful tool, and one which I can see actually benefiting people. And to help motivate you even more, if you manage to hit your target you’ll get a green star on the App the next morning.

    So let’s take a look at the App data and how useful it might be.

    Track Your Spo2 To Uncover Changes In Your Wellbeing

    Fitbit Charge 2 review: Still the Front

    Note: As of December 15, 2020, Fitbit Sense and Versa 3 users can now view their SpO2 trends over the past week without a Premium membership.

    At Fitbit, we are always working to identify new ways we can tell you more about your body and your wellness with new and existing technology. As part of our ongoing feature development, we have introduced a new capability—an estimate of your blood oxygen saturation. We’re excited to announce that in select markets, you can access it through the free SpO2 Signature clock face on your smartwatch, so that you can track potential changes in your wellbeing.* 

    Connect Bluetooth Headphones To Your Fitbit Versa

    To listen to phone-free music you’ll need to connect headphones to your Versa. On the watch, head into Settings > Bluetooth and you can connect to a new device. Put the headphones in pairing mode and they will appear on your Versa. Select the headphones to pair them with Versa and you’re done. This isn’t an option on the Versa Lite.

    How To See Your Notifications On The Fitbit Blaze

    An upward swipe from the bottom of the home clock display will pull up your notifications, which can be deleted by swiping right on the notification itself. If you are in exercise mode or on a different screen other than the home screen, hold the bottom right button for three seconds and your notifications will appear.

    For more information on Fitbit and its devices, visit our Fitbit hub for all news and reviews.

    Fitbit Inspire 2 Review: Design And Build Quality

    Subtle to wear, the Fitbit Inspire 2 is very comfortable which is useful when you’re embarking on tracking your sleep. Designed like a smallish wrist strap rather than a watch, it’s thin and lightweight so you’ll soon forget you’re wearing it. We had the desert rose variety which is the brightest option out of the three but it still blends in with what you’re wearing quite well. 

    The build quality feels reasonably competent for the price too. There aren’t really any parts you’ll worry about knocking and water resistance up to 50m means you won’t need to worry about taking it off for a bath or shower either. This is a device designed to be worn long term.

    Where things falter is the Fitbit Inspire 2’s 1.4-inch backlit OLED display. It’s fine and can show some limited information but it’s pretty basic. Receiving notifications can be a bit limited here with chunky bezels further limiting what you can see. It’s not the greatest in bright lights either and it’s all pretty rudimentary. Still, it does the job. 

    On either side of the display are capacitive buttons which are subtle but sometimes a little inaccurate to the touch. In conjunction with them, you can swipe up or down the display to view different stats such as how many steps you’ve taken or how many active zone minutes you’ve achieved so far today, as well as your sleep score. 

    Fitbit Inspire 2 Review: Alternatives To Consider

    There’s no shortage of the best fitness trackers to choose from out there which is why we’re fairly convinced that the Fitbit Inspire 2 is best as a sleep tracker instead. That’s thanks to how comfy it is but there are alternatives.

    The Fitbit Charge 4 is more expensive but offers GPS and the same sleep tracking tools you’ll see on the Fitbit Inspire 2. It’s a similar weight too so you won’t have to worry about any disruption while snoozing. 

    Alternatively, a budget offering like the Xiaomi Mi Band 4 can be a good option if you want to spend even less but it’s far from as comfortable as the Fitbit Inspire 2. Still, it’s also about a quarter of the price at only about £20. It still has a heart rate tracker too so it’s reasonably accurate while you sleep.

    There’s also the option of the potential overkill purchase – the Apple Watch Series 6. Far more expensive than anything else mentioned here, it’s worth it if you’ll use it. With a brighter always-on display than previous Apple Watches, it looks gorgeous. It also has excellent app support so you can try a lot of different health and fitness options. An array of health sensors including a blood oxygen monitor and ECG facility further provides some peace of mind. Expect to pay for the privilege though. 

    What To Do When Your Fitbit Stops Tracking Sleep

    Jun 14, 2020 | Other, Troubleshooting

    Fitbits are great smartwatches with a variety of capabilities. However, some users have reported that their Fitbit is inconsistently tracking their sleep or not tracking their sleep at all anymore. To help, we’ve researched what to do if you’re Fitbit isn’t tracking your sleep. 

    If a Fitbit stops automatically tracking sleep, restart it using the specific directions for that Fitbit model. If the Fitbit is still not tracking sleep automatically, users can adjust the device’s sleep sensitivity level or start and stop the sleep tracker manually using the Fitbit app.

    In this article, we’ll cover a few ways you can troubleshoot your Fitbit if it stops recording your sleep.

    How Fitbit Detects What Stage Of Sleep Youre In

    Ok, so your Fitbit might not meet the gold standard of using an electroencephalogram in a lab setting. Professional sleep studies detect your brain activity, eye movement, and muscle activity in a controlled environment.

    What Fitbit does is estimate the amount of time you’re spending in each sleep stage by using a combination of your movement and your heart-rate patterns. Your tracker assumes you’re asleep if you haven’t moved in one hour. The device cross-references that with other data – movements that indicate sleeping such as rolling over – to confirm that you are asleep.

    Your Fitbit then tracks your heart-rate variability – the beat-to-beat changes in your heart-rate – that fluctuate when you move between the different sleep stages. When you wake up and sync your Fitbit, the device is able to use that data to estimate the amount of time you spent in light sleep, deep sleep, and REM sleep the previous night.

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