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How Do Fitness Trackers Track Sleep?

How Does Sleep Tracking On Fitness Trackers Work?The simple answer to this is comprised of two components: Heart rate monitoring and an accelerometer.

Heart rate monitoring is a vital feature that fitness trackers have and it tracks your heart rate throughout the day and during the various kinds of activities you do.

They can, with statistics, tell which of your heart rates indicate sleep, which indicate being still, which indicate mild activity, and which indicate vigorous activity. Using this information, a sleep tracker can tell when you’re asleep or not.

Some trackers even come with automatic sports recognition which can easily tell when you’re doing different activities like walking, running, cycling, dancing, playing sports, or swimming.

An accelerometer is a sensor that measures the acceleration of your moment throughout the day, to indicate different activity levels. They can also indicate the number of steps you took and even the steps you’ve climbed if the tracker has an altimeter.

Both of heart rate monitor and accelerometer combined together work to give you sleep monitoring that is as accurate as possible.

How does your fitness tracker know when you’re asleep?

A question that asks itself, however, is whether sleep tracking feature in those fitness trackers is reliable and how accurate the information is.

Well, for a regular everyday consumer, the answer would be that they give you a good idea and a general background on the quality of your sleep. Although it is not a hundred percent accurate.

However, if you’re a person with a medical condition or a sleep disorder, these fitness trackers may not be the most accurate devices to use. This applies especially to the tracking of sleep stages which is something some of the fitness trackers’ manufacturers claim that their trackers do.

To monitor the stages of your sleep, experts and professionals use brain waves and eye movements to give an accurate estimation of how much time you spend in each stage of sleep, broken down into light, deep, and REM sleep.

This is the most accurate way and anything else wouldn’t give you reliable information that you can use for treatment or improvement with your sleeping disorder.

Compared with the polysomnography –a scientific evaluation of a person’s sleep-, the fitness trackers were easy to trick due to their great dependence on the accelerometer.

How Does Sleep Tracking On Fitness Trackers Work? | Bottom Line

So the bottom line is, if you’re using the tracker to give you a general idea on the quality of your sleep, then there are no worries and you’ll get a good background on how well you sleep.

How Do Fitness Trackers Measure Calories Burned?

When purchasing a fitness tracker that has a calorie burned indicator feature, you must ask yourself how would a fitness tracker calculate the amount of burned calories? If we are going to be real, the thought of it being just a smartwatch wrapped around your hand must have occurred to you, how does it function?

How Your Fitness Tracker Tracks Calories Burn?

How Do Fitness Trackers Track Calories BurnedLet us start from general knowledge first, our BMR short for “basal metabolic rate” is simply the rate at which you burn calories while you are resting just to maintain vital body functions such as: breathing, heartbeat, and brain activity.

Usually your BMR is estimated for at least half of the calories you burn in a day and it can be accounted based on the physical data you entered when purchase a fitness tracker then start creating a health profile which includes information such as: gender, age, height, and weight.

Based on your BMR calories, fitness trackers calculate the burned calories based on your heart rate, it is most likely the best and most reliable way of calculating.

So let’s say If you were very stressed during that meeting, and your heart rate was elevated, the chances of your calories burning abilities will be much higher than usual.

Moreover, a fitness tracker provides an in-depth estimation by taking into account not only the BMR as mentioned above, but also adds on the activities recorded by your tracker, in addition to any activities you might log manually.

The longer you wear your tracker the more accurate your resting rate, and the more accurate your resting rate is, the more accurate the calorie burn estimation will be.

There was a study made a while ago done by some doctors along with an experiment that was based on people testing out fitness trackers by wearing them then later debate any conflictions made between the results of the fitness trackers as devices and the results the doctor produced using professional and medical devices; the study assured how fitness trackers have very low errors in their estimation and their accuracy level is good, and how usually the device work by using the BMR method.

The BMR count in your  fitness tracker will reset itself every night at midnight thus you will be able to start a new day with a fresh negative counter that will begin counting immediately even if you have just gotten out of bed, and it is all thanks to how BMR burned calories work.

Although we should note that any fitness tracker can very much count your heart rates precisely but you can not rely on it for how much calories are burned, after all each body’s metabolism works differently as well as the BMR, it differs from one body to another.

At the end of the day, fitness trackers can not be accounted or relied on for an accurate amount of how much your body has burned calories. It is always best to keep up with a professional rather than a device.

How Do Fitness Trackers Track Heart Rate?

How Does a Fitness Tracker Measure Your Heart Rate?Lately fitness trackers have invaded the sports world by a storm, it is quite rare now to find a fitness tracker that does not have a heart rate tracking feature. The big questions here are how does it do that? And how precise can it be?

Usually any fitness tracker can also measure your activities such as the distance you walk, the number of steps you climb and the calories you burn, that is why these trackers are becoming an essential device for athletes in order for them to keep tabs on their health stats.

Do Wearable Heart Trackers Actually Work?

These trackers can be placed on your wrist, they are adorned with sensors that can measure the acceleration, frequency, duration, intensity and patterns of your movement while you are exercising, one of the most important sensors of a tracker is the light sensor; these fitness trackers use light to measure the body’s pulse.

The process works by shining a light into the blood vessels located in your wrist after that they start to detect the changes in the blood volume which happens every time your heart beats and pushes blood throughout your body. Sensors on the device detect how much light your blood vessels reflect back thus less reflected light means a higher blood volume.

This technology is called photoplethysmography or PPG for short.

Furthermore, this technology is not only used in the tracker devices but is also used in hospitals. Experts confirm that the devices that use this technology are very accurate at monitoring the heart rate, in spite of that these devices verge to be a bit imprecise when a user starts making an intense activity.

How Accurate Are Fitness Tracker Heart Rate Monitors?

Long story short, these wearable technologies rely on using an LED light to make the capillary veins in your wrist visible to a sensor in order to measure how fast your blood is pumping, after that this information is then interpreted as your heart rate and later is presented in a “beats per minute” data format.

However, if you want to receive an accurate reading, the wearer should be totally still thus any simple move can effect the tracker’s heart rate reading.

If you want a device that solely works on getting an accurate heart rate reading, then a fitness tracker might not be your call.

We suggest getting a heart rate monitor watch, it requires you to be still so it could read your rate, and unlike most trackers; instead of taking an idle reading of your pulse, the device requires you to touch your finger to a built-in pad to such a degree the results have a more accurate reading, one that fitness trackers aspire to have.

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The Battery Life of The Fitbit Versa – How Long Is The Fitbit Versa Last?

Fitbit Versa Battery LifeThe battery life of any device is the thing that determines how often you have to worry about recharging it, and for a Fitbit, recharging may seem like a tedious job as you have to keep taking it off and putting it back on.

At face value, picking a Fitbit with a good battery life may seem easy: just pick the one with the longest battery life. However, the battery life is affected by many things.

The longest battery life is on the Zip (lasting 4 to 6 months), but the Zip has little to no features other than counting steps.

There is the Alta HR that lasts up to 7 days, but its features aren’t extensive as other models down the line. A lot of the Fibit watches have battery lives of 5 days like the Flex 2, Ace, Alta and Charge 2.

However, their features don’t compete with the Versa, specially when you bear in mind the female health tracking that the Fitbit Versa is equipped with.

How Many Days Last The Fitbit Versa Battery?

The Fitbit Versa’s battery can last up to 4 days on a single charge.

Which isn’t too shabby when you think about the perks of the features it has to offer.

Think about the thorough heart rate monitoring it has to offer using PurePlus technology as well as FitStar workouts that make you feel like you have a personal trainer on your wrist.

Read More: The Ultimate Comparison Between The Charge 2 & Versa.

It has Automatic Sport Recognition to detect different kinds of activities like walking, running, cycling, playing sports, or swimming.

The latter is possible as the Fitbit Versa is water-proof, which means you can go for a swim while you’re wearing it, or take a shower or a bath with no worries.

It’s also equipped with a 3-axis accelerometer for speed tracking, an altimeter that keeps a record of how many steps you’ve climbed and an ambient light sensor.

You can control the various sport modes with the 1.34-inch LCD color interactive touchscreen that displays 348 x 250 pixels and 1000 nits of brightness.

Add to that, the Fitbit Versa allows you to play music to pump up your exercise, receive text messages and app notifications, phone calls, calendar events, and more alerts.

You can also style your Versa by changing its strap as it comes with an interchangeable one, and the choices are extensive as you have leather, stainless steel, mesh, and silicone in colors like black, peach and gray. For an extra 30 dollars, you can get it in the charcoal woven or rose gold plated special edition.

Generally, Fitbits are unisex devices, but sometimes a certain model can give more reasons for one sex to buy it. This applies to the Versa as its size is quite small with dimensions 2 x 4 x 9 inches.

And the superb female health tracking feature that lets users log their periods, track ovulation and fertility, take notes of symptoms and even receive notifications predicting the start date of their period.

Now when you mix all of these greatly useful features with an affordable price, recharging your Fitbit every 4 days doesn’t seem like to bad a trade.

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Is the Fitbit Versa Waterproof? The Versa Waterproof Rating

Is The Fitbit Versa Waterproof or Water Resistant?

To answer this question, we have to consider what waterproof means first. Waterproof devices are those designed with an ability to endure a certain amount of pressure. And as is well known, the deeper you go into the water, the more the pressure increases.

Now you may ask yourself this question: Why should you bother with buying a waterproof Fitbit?

Is The Fitbit Versa Waterproof

Of course, this solely depends on what kind of activities you usually engage with. If you’re not the kind of person that does aquatic activities like swimming, diving, snorkeling, or surfing, then you might want to skip a waterproof Fitbit; although that means you have to take it off during your showers or baths.

On the other hand, if you do engage with activities related to water then you should opt for a waterproof Fitbit, and the Fitbit Versa makes a great choice.
With the Versa, Fitbit was aiming for a smartwatch for all.

It’s actually more affordable in price than the previous Fitbit –the ionic-, and it comes with a great number of features such as a 3-axis accelerometer for speed tracking, an altimeter that keeps a record of how many steps you’ve climbed, an ambient light sensor, and an optical heart rate monitor.

The only downside to it is that it lacks a built-in GPS sensor though you can connect it to a phone for GPS services. It has a special edition that allows you to make payments with the Fitbit Pay feature.

Charge 2 or Versa: Which Is Better?

Can You Swim or Shower With The Fitbit Versa?

The Versa –being waterproof- is ready to back you up on whatever activity you’re doing, and the Smart Track feature strengthens that ability as it automatically detects the kind of activity you’re doing, whether it’s running, dancing, cycling, or swimming.

You can control the various sport modes with the 1.34-inch LCD color interactive touchscreen that displays 348 x 250 pixels and 1000 nits of brightness.

Add to that, the Fitbit Versa allows you to play music to pump up your exercise, receive text messages and app notifications, phone calls, calendar events, and more alerts.

You can also style your Versa by changing its strap as it comes with an interchangeable one, and the choices are extensive as you have leather, stainless steel, mesh, and silicone in colors like black, peach and gray.

For an extra 30 dollars, you can get it in the charcoal woven or rose gold plated special edition.

Generally, Fitbits are unisex devices, but sometimes a certain model can give more reasons for one sex to buy it.

This applies to the Versa as its size is quite small with dimensions 2 x 4 x 9 inches. And the superb female health tracking feature that lets users log their periods, track ovulation and fertility, take notes of symptoms and even receive notifications predicting the start date of their period.

Fitbit Versa Waterproof | Final Words:

Be careful not to buy a water resistant one though, which can only endure splashes of water from washing your hands or a run to the grocery store in the rain.

Besides all the great features it offers, the Fitbit Versa is completely swim-proof, so you can go swimming with it and submerge it down to 50 meters. You can also take showers or baths while you still have it on without any worries about any damage happening to it.