Fitbit’s Heart Rate Accuracy And How To Enhance It

The Fitbit is among the most accurate devices for measuring heart rate. It detects, identifies, and begins recording activities like running, walking, swimming, and biking after every 10 minutes. The Fitbit wearable measures within five beats per minute are 85% accurate compared to other wearable apps. It is used to calculate BMR, activity level, calories burned.holdbarhet nespresso kapsler
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How Does Fitbit Measure Heart Beats?

How Does Fitbit Measure Heart Beats

When the heartbeats, the capillaries expand and contract because of the changes in blood volume. The Fitbit device features a green LED light that flashes hundreds of times per second and records the blood volume changes, which keeps track of the heart rate. 

The Fitbit device analyses the data and provides several heartbeats per minute. Fitbit uses three heart rate zones to record the heart rate; fat burn, cardio, and peak zone. 

The peak zone is the highest part of your workout, as it is when you are doing an intense workout, which is 80-100% heart rate. The fat burn zone is around 50-69% of the maximum heart rate, and finally, the cardio zone is 70-84% of your maximum heart rate. Fitbit also records your resting heart rate.

How Do I Make The Fitbit More Accurate In Measuring Heart Rate?

How Do I Make The Fitbit More Accurate In Measuring Heart Rate

The exact Algorithm used by the Fitbit device to estimate heart rate can be affected by improper positioning of the device, instability, and outdated updates can potentially result in different results and poor data quality.

Fitbit can be made more accurate in several ways as listed below:

1. Wearing the Fitbit device on top of your wrist and the back of the device should contact the skin. If the Fitbit is closer to your skin, it detects your heart rate more efficiently.

2. Wear the Fitbit device tight and high on the wrist during exercise for an improved heart rate checkup.

3. When in a rest mode, wear the device on top of the wrist bone, a finger’s width higher.

This article shows you the accuracy levels of Fitbit and how to make the most out of it. It delves into the importance of wearing a Fitbit wristwatch and how to wear it while doing various activities to get an accurate heart rate.

How You Put On Your Fitbit Device Impacts Measuring The Heart Rate Accuracy

Here’s what Fitbit recommends:

1. When wearing your Fitbit watch on top of your wrist, do not wear it too tightly or loosely. For tracking heart rate, ensure that it’s touching the skin and a bit tighter on your wrists, especially if you are working out.

2. Change your app settings

The Fitbit device majorly relies on the information you have provided in the database to calculate the heart rate. All information you provide is stored on the dashboard, hence it is up to you to provide relevant information.

You should wear the Fitbit wrist device on your left hand: Fitbit recommends the left hand as it is non-dominant. If you prefer the right hand, do not forget to update it on the app.

The Fitbit device’s height is used to estimate the activity’s heart rate: The correct height will go a long way.

The weight you have input in the Fitbit dashboard device also determines the Fitbit heart rate accuracy: An active body has a lower heart rate than a relaxed body with fewer activities.

Is Fitbit Better In Heart Rate Tracking Than Other Trackers?

Fitbit is unique in heart rate tracking as it assesses several components in your data to develop a figure that describes your current state. According to the Fitbit community, it tries to be 85% accurate. If you are not contented, you can see a doctor to check your heart rate.

Why Does My Resting Heart Rate Keep Going Up?

The reason may be an increased resting heart rate, which may be a warning sign of cardiovascular, blood pressure, or early heart disease. Another reason is that a resting heart rate may go upward because of poor reaction to the medication, massive thyroid hormone levels, and any underlying infection.

The excellent heat rates for different ages are:

1. 1 to 3 years: 80-130bpm

2. 3-5 years: 80-120bpm

3. 6-10 years: 70-110bpm

4. 11-14 years: 60-105bpm

Frequently Asked Questions (FAQs)

1. Can Fitbit Detect Abnormal Heart Rate?

Fitbit works hand in hand with FibriCheck, a medically certified screening app that works with the Fitbit smartwatch to detect heart rhythm misinformation that can have a significant impact on your health. 

However, if you have an abnormal heart rate, you are advised to seek guidance from a medical professional.

2. Is Fitbit Good For Heart Patients?

The Fitbit features 24/7 heart rate monitoring that tracks heart health over time. It always displays the current heart rate, whether exercising or at a BMR state. 

Additionally, it simply shows your metrics on the significant screen so that the navigation might be more straightforward. Heart patients can potentially keep track of their heart rates, but you can see a medical professional using the Fitbit device to primarily track your heart rates.

3. What Lowers A Resting Heart Rate?

You can lower your heart rate and also maintain a healthy heart by doing the following:

Exercise more: Activities like walking, swimming, and cycling make the heart beat faster, and after a short time afterward, gradual exercises every day slows the resting heart rate. Also, being in a Basal Metabolic rate is an automatic fall of the heart rate.


In conclusion, heart rate shows a lot that is ongoing in your body, and it is a good feeling when you keep track of your heartbeat. Heart rate tells you if your body needs medical attention or is doing okay. Fitbit is the most accurate device in measuring heart rate as it uses so many factors to filter through and record your heart rate at a particular moment. The data used is solely gotten from the Fitbit device dashboard. It is best to measure your heart rate early in the morning and in the evenings. Get the most out of Fitbit by keeping tap of your heart rate. For further advice, you can see a professional.

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