9 Most Accurate Calorie Trackers For Fitness Lovers (2022)

Are you a fitness lover and conscious about your daily calorie intake and calorie burn? If yes, then you should own a fitness tracker that accurately tracks your calories burned.

An accurate calorie tracker is your best companion that can help you lose weight. It allows you to look deeper into your wellness by providing deep insights and metrics.

Different indoor and outdoor activities can help you burn your calories, but how to track calorie burn?

Fitness trackers offer a fun way to set goals and measure your daily activities. You can see the insights of your daily activities that boost your confidence and helps you to move one step ahead towards your destination.

Based on our experience and deep research, we have collected the nine most accurate calorie trackers that helps you to burn more. 

We have updated this article on 18 April 2022, adding two new smartwatches; Apple Watch 7 and Fitbit Charge 5.


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Things To Consider Before Choosing The Best Calorie Tracker

The market is overloaded with fitness trackers, and all of them can track calories burned. But it’s not a question of calorie tracking only; your fitness tracker should be more accurate and include other fitness tracking features. 

Before picking any fitness tracker, you should consider a few things that help you get a worthy tracker. 

1- Accuracy:

For every athlete or any fitness lover, the accuracy of a fitness tracker mattress is a lot. Without accuracy, a fitness tracker is just rubbish. As a fitness-focused person, you have to invest a little more in getting an accurate calorie tracker. 

If your fitness gadget gives accurate insights into your performance, then it’s very useful device to measure your wellness and goals. Not just that, you can keep an eye on your weak points and work on them to beat your goals. 

Brands like Fitbit, Garmin, and Apple manufacture accurate trackers, but these brands are also more expensive than the rest. 

2- Other Health Features

To maintain a healthy lifestyle, you only have to measure calories but also keep an eye on your nutrition, sleep, HR, stress, and other such wellness features. 

So make sure that your fitness tracker contains all the essential health features that help you achieve your fitness goals. 

3- Battery Life

A fitness tracker with good battery life helps you keep track of your goals 24/7. If you track goals for a long time, you will get more accurate results than tracking health in increments. 

Especially if you’re a guy interested in outdoor activities, then it’s a difficult task to charge your fitness tracker every night. So, you should pick a fitness tracker that gives up to 7 days of battery life. For a routine 3 days of battery life is also sufficient. 

4- Design & Comfort

Design factor also matters a lot. Some people are design-conscious; we have put this factor here. The majority of fitness tracker comes with a sleek design which is best compared to bulky trackers. 

If you have a person with a small wrist, then you should consider a pick a lightweight tracker. Such fitness trackers give a comfortable experience, so you can measure your wellness at night as well. 

9 Most Accurate Calorie Trackers That You Should Try

1- Fitbit Sense

calorie tracker



OS Fitbit OS
Compatibility Android, iOS
Display 1.5” AMOLED
Internal Storage 4GB
IP rating:  5ATM
Battery Life 6+ Days

For weight loss or maintaining your current weight, your diet plays a key role in this. So in your daily calorie tracking, Fitbit Sense will help you a lot because it is most accurate calorie tracker.

This watch has dimensions of 1.59 x 1.59 x 0.49 inches, accessible for you to wear it anytime and anywhere. I strongly recommend it to people with a thin wrist as it is a very lightweight and comfortable smartwatch.

This tracker uses Fitbit Appwhich requires your information such as sex, height, age, and weight, etc. With the help of this information, the app calculate your base metabolic rate and compares it to your daily activity and heart rate.

Under the light of all your calculations and information, it determines an estimation of calories burned.

Accurate calories tracker

How To Use Fitbit App Bar Code Scanner?

By following these simple steps, you can scan the bar code of your food items with the help of the Fitbit App and easily give information to your tracker.

  •  From the Fitbit app’s Today view, tap the Food tab.
  • In the top right corner, tap on the addition symbol.
  • On the Log Food screen, search for different foods by typing in the box, tap the barcode symbol on the right to bring up the camera
  • Or you can also manually enter your calories by tapping the symbol of the number on the left.

With the presence of a bar code scanner, this app can recognize thousands of foods and meals. So, by logging your food information, you can see whether you are under your target or crossing your target, which is based on your Weight goals.

  • Attractive Design
  • Long-lasting Battery
  • Accurate Calorie Tracker
  • Measures Oxygen Level
  • Expensive
  • Small third-party app selection

Check out: Best Smartwatch For Diabetes Patients

2- SAMSUNG Galaxy Watch 3 


OS Tizen OS 5.5
Compatibility Android, iOS
Display 1.4”
Internal Storage 8 GB
IP rating:  5 ATM
Battery Life 2 days

Galaxy Watch 3 is designed to manage your fitness routines, smash fitness goals, and take ownership of your health.  It tracks your burned calories based on your weight, heart rate, speed, and distance.

How Does It Work?

The Samsung Health App on Galaxy Watch 3 measures your calories burned in real-time. Whether you are in rest mode or performing any activity, it accurately monitors your energy expenditure.

Calories burned during workouts and activities vary a lots from person to person. But Galaxy Watch 3 will gives you an accurate estimate of your calories burned based on the private data that you’ve put in.

Besides that, it has many sports modes, using which you can track your calories burned.

All these modes require your information to determine an estimate of your calories burned. This information includes height, gender, heart rate, speed, distance, etc.

Your burned calorie data is intended for fitness and informational purposes only. This is not intended for use in diagnosing disease or other conditions or the mitigation, cure, treatment, or disease prevention.
  • Great OLED screen
  • Amazing design with a lighter feel
  • LTE and loudspeaker
  • Short battery timing
  • Expensive

3- Apple Watch 7




OS Watch OS 8
Compatibility iOS
Display 1.61 inch
Storage 32 GB
IP rating:  50 meters
Battery Life 18 hours

The Apple Watch Series 7 is a watch with a bigger screen and fast charging, making it better than the Series 6. This latest Apple flagship watch keeps track of your active calories burned.

Rather than its new fitness and health features, it also comes in various colors and has an attractive design. We have seen a 20% bigger display compared to previous models.

How Is It The Best Accurate Calorie Tracker?

Apple Watch 7 serves as a handy calorie counter and helps you quickly achieve your fitness goals. I love this masterpiece because you can track both incoming and outbound calories with it.

According to research, Apple watches use your heart rate data, movements, and personal health data to calculate your energy expenditure.

Also, there are tons of different watch faces available that show your calories burn metrics to see them at a glimpse. Moreover, you can also see how many minutes of activity you have performed.

How To See Calories Burned In Apple Watch Series 7

By following the below-mentioned steps, you can see your calories burned in Apple watch 7:

  • Go to the Activity app on the watch head.
  • Swipe down with the digital crown
  • Under the Move Goal, you will see your activities burned.

If you’re curious about the accuracy of the Watch 7, then as compared to other wearables in the market, Apple is well-known in terms of accuracy.

Besides the calories burned, it also measures your heart rate and pre-set workout options.

Other features

  • Always-on display
  • SpO2 feature
  • ECG app
  • Sleep tracking
  • Fast charging
  • Built-in GPS
  • Larger and brighter display
  • Durable and scratch-resistant
  • Fast charging
  • Has numerous health and fitness features
  • Battery life needs to be longer.

4- Fitbit Charge 5

Fitbit Charge 5 


OS Fitbit OS
Compatibility iOS, Android
Display 1.58 inch
Storage No
IP rating:  50 meters
Battery Life 7 Days

Fitbit Charge 5 is also the top-rated calorie tracker with the utmost accuracy. Its always-on color display, sleeker design and new amazing health and fitness features have made it significant from the previous models.

With the new curve bezel design, you also get a thinner dial than Fitbit Charge 4. Similarly, this time Fitbit has added a new color display; the 1.04 inches AMOLED touch screen is a plus point.

In What Ways Is It the Best Calorie Tracker?

If you are too much concious about your calories burned, then you can pick this affordable fitness tracker. It not give insights of calories but also meaure your blood oxygen level, sleep, and stress etc.

Also, while running and walking, you can see your calories burned by just tapping on your screen. Also, you can see the average pace, current pace, heart rate, steps taken and distance travelled, etc.

Under the hood, it includes 20 different exercise modes under the hood to monitor your indoor and outdoor activities easily. The new SmartTrack feature automatically tracks the most popular exercises like; running, cycling, hiking, swimming, etc.

Moreover, Fitbit Charge offers 7 days of battery backup. Long battery life makes you stress-free as you don’t need to put your tracker on charge every night.

Other Features

  • Fitbit ECG
  • Electrodermal activity scan app
  • Stress management
  • SpO2 monitoring
  • Heart rate variability
  • Menstrual cycle tracking
  • Smart track
  • All-day activity tracking
  • Color touch screen
  • Attractive design with metal case
  • Excellent companion mobile app
  • Supports mobile payment
  • No Spotify support

5- Polar Ignite

accurate calorie tracker


Compatibility iOS, Android
Display 1.2” O
Internal Storage NA music storage
IP rating:  30 meters
Battery Life 3 days

Polar is a well-known smartwatch brand that offers high-quality multi-sports watches. You can make Polar Ignite your new-generation workout partner. I appreciate its accuracy, and you can easily see the profound insights of the calories burned on your wrist.

This watch comes with advanced sensors that can even track your high-intensity moves so that you will get an accurate calorie-burning number. 

Overall, this Polar watch looks so sleek and comfortable. It has a bright AMOLED display that gives a more premium feel. The watch is loaded with tons of extra features that are useful for every sportsperson. 

A Best Workout Trainer

The great Polar Ignite offers ready-made and on-demand workouts according to your fitness level. So you don’t need a trainer, this watch is your best companion from now. 

Another interesting thing is the smart calorie tracker, and you can track your calorie burned for a specific activity or total calorie throughout the day. And smart calorie tracking also suggests you exercise according to your height, weight, and age.

Other Features:

  • GPS
  • Advance wrist-based heart rate
  • Real-time HRM
  • Advanced sleep tracking tools
  • Fitness test
  • Breathe exercise
  • Running program 
  • Running Index
  • Training load pro
  • Training Benefit and more
  • Sexy look
  • Clear and bright screen
  • Excellent battery life
  • Advance sleep tracking tools
  • Accurate calorie tracking

  • Delay while wanting to see the information during your sports activity
  • Open water swimming mode doesn’t work well through the GPS

6- Apple Watch Series 6


OS watchOS 7.0, upgradable to 8.1
Compatibility iOS
Display 1.78 inches Retina LTPO OLED
Internal Storage 32GB
IP rating:  50 meters
Battery Life 18 hours

For those looking for a high-quality branded smartwatch, nothing is better than Apple Watch Series 6. This is the latest Apple flagship which is loaded with all the essential fitness tracking features. 

Because of its high accuracy it’s best calorie counter watch.

In this watch, the SpO2 sensor comprises four LED clusters and four photodiodes that accurately track every activity. You will also get an ECG app, so if you are a heart patient or a diabetes patient Apple Watch series, 6 is best.

The digital crown on the left side is insane. With just one touch, it will generate an ECG waveform in just 30 seconds. Similarly, this watch deeply analyzes your sleep trends every night to achieve your personal sleep goals. 

Apart from this, some built-in sports modes like running, walking, hiking, yoga, cycling, dance, and more. You can also track your SpO2 underwater with the watch.

With its built-in GPS, you can now track your speed, distance, pace, and more during your running or cycling. It will track calories burned for a specific activity and a whole day. I’m impressed with its accurate calorie tracking feature.

Apple Watch Series 6 also has a cellular, and you can make calls, reply to a text, and use the internet without touching your phone.

  • Accurate activity tracking
  • Comfortable
  • ECG
  • Cellular
  • Support Virtual assistant (Siri)
  • Battery life could be improve
  • Expensive

7- Fitbit Charge 4 (Affordable Calorie Tracker)

Affordable Calorie Tracker


OS Fitbit OS
Compatibility iOS, Android
Display 1.57 inches | Monochrome OLED
Internal Storage No
IP rating:  50 meters
Battery Life 4 days

Fitbit charge is one of the most affordable fitness trackers that can track your fitness. This tracker accurately tracks your calories burned during various activities.

How Does It Work?

charge 4

This tracker uses the Fitbit App. Therefore, you have to enter a lot of information about yourself. This information includes your age, weight, height, and gender, data points used to establish a basal metabolic rate(BMR).

Basal metabolic rate (BMR) is often used interchangeably with Resting metabolic rate (RMR). BMR is the rate at which you burn calories while at rest. This means that it will track your calorie burn when you are in the rest condition.

Note: In certain conditions, you will see your data in kilojoules instead of calories.

How To Change Measurement Units In Fitbit Charge 4?

If you want to change your data units, tap the button on the back of the scale. Here you can switch between pounds, stones, or kilograms.

  • Built-in GPS
  • Intensity map
  • Water Proof
  • 7 Days Battery life
  • Black and White display
  • Screen wake can be finicky
  • Basic interface

8- Amazfit GTS

best calorie tracker


OS Zepp OS
Compatibility iOS, Android
Display 1.65”
Internal Storage 4GB
IP rating:  50 meters
Battery Life 14 days

Like all other fitness trackers, Amazafit GTS falls at the top of the list of best calories tracker. Amzafit GTS will help you maintain a healthier lifestyle, monitor calories, and keep track of your diet.

How Does It Work?

amazfit gts

Amazafit GTS uses the Zepp App, formerly known as Amazfit. This new official Zepp app is compatible with Amazfit branded devices; it shows your calorie data and shows other health data in detail.

The algorithm of this tracker doesn’t include BMR (basal metabolic rate). This tracker will not track your calorie burned when you are in rest condition. It will only follow your calorie burned when doing exercises or activities.

Steps To Be Followed

By following these steps, you can track your activity.

  • Swipe down from the watch home screen.
  • Then tap the fourth icon, Additional Settings.
  • Swipe up until you find Huami Lab and Feedback.
  • Then tap Huami Lab, and you will see Activity data collection.
  • Click to turn on Activity data collection.
  • Choose a sports mode to start your activity.
  • Please must turn off Activity data collection after finishing your workout.
  • Tap Feedback to generate reports.
  • Attractive Design
  • Excellent for fitness tracking
  • Great Disply
  • Calorie tracker doesn’t work BMR (basal metabolic rate)
  • Battery backup is below average

9- Garmin Vivoactive 3 

how to track calories with vivoactive 3


Compatibility iOS, Android
Display 1.2″ (30.4mm) diameter
Internal Storage Store up to 500 songs
IP rating:  50 meters
Battery Life 7 days

This is the final fitness tracker of our list that has a lot of premium fitness tracking features. Garmin Vivoactive 3 has a durable and solid design making it perfect option for outdoor enthusists. 

Vivoactive 3 connects with the Garmin Connect IQ app, one of the best fitness apps, plus a virtual coach. Using this app, you can deeply look into your fitness routine and explore your weak points.

How Does It Work?

Many methods are included in this watch for tracking the calories burned. But the most accurate method is the Firstbeat Algorithm Method.

If you are looking for accurate results in this smartwatch, this method is the best. But this method is not developed natively by Garmin; a Finish company (Firstbeat Technologies) introduce this algorithm.

The calculation of this method is based on your information like gender, height, etc. After getting this data, it combines it with heart rate information from the ANT+ heart rate strap.

Specifically, it evaluates the time between heartbeats (beat to beat) to determine estimated MET (Metabolic Equivalent), used to determine actual work expenditure. Firstbeat company has also published details of accuracy rates.

  • Provides Accurate Metrics
  • Good Battery Life
  • Shiny and sleeky design
  • Can’t store music on this watch
  • Garmin Pay not Universally supported

Which Is The Best App to Track Your Calories

tracker for weight loss

Calories tracking needs a legit app that shows you A-Z information of your daily calories burned. Few Calories tracking app performs very well and suggests you proper nutrition plans according to your fitness routine.

So you should use a specific calorie tracking app along with a built-in trackers app. Below are some favorite nutrition apps that you should try.

1- MyfitnessPal

This is one of my favorite nutrition apps, with over 11 million food in their database. Myfitesspal tracks your calories and suggests you some food accordingly.

Similarly, you will get motivational workout tips from experts that inspire you and helps you to continue your fitness journey.

Get MyFitnessPal

2- Loss It

Here comes a Loss app, a most insane app for the fitness lover. But, if you want to lose weight, then you should try it. In this app, you can set your fitness goals, track your food and water, macro tracking, and much more. In short, here, this app has all the tools that help you to lose weight.

Get Lose It App

3- Nutritionix

it’s clear from the app’s name. You can track your calories and get proper nutrition plans. This app has a straightforward and easy-to-use interface, as there are not many options.

Nutritionix also helps you to build custom recipes that you can do back and edit for future logging. Secondly, you can share a food log with the Coach portal.

Get Nutritionix 

How Fitness Trackers Measure Calories

Fitness trackers are two types of methods to measure calories burn most of the time. The first method is using a PPG sensor that calculates your heart rate and takes the user’s height, age, weight, etc., to estimate the energy expenditure of users.

Secondly, an accelerometer is used to measure the movement of the user’s body during workouts, exercise, or any physical activities that help measure calories burned. Study shows that a fitness tracker that uses an accelerometer has more accuracy, like the Fitbit tracker that measures energy expenditure based on an accelerometer. 


Which One Is The Most Accurate Steps Tracker?

According to research done by CNBC, the Fitbit tracker gives more precise steps results. Their previous Fitbit HR was very accurate in measuring steps. They also said that most fitness trackers tested give values very close to the actual one. So there is not a big difference between these trackers.

Which One Is The Most Accurate Heart Rate Tracker?

Heart rate accuracy is one of the things that makes fitness trackers more valuable. According to research performed by Cleveland Clinic, the Apple watch gives 90% heart rate accuracy compared to the rest of the brands. They have tested different heart rate trackers and compared results with EKG machines, and only the Apple watches give precise values nearer to actual results.

Final Words

No doubt, as a fitness lover, you want the tracker that gives the best and accurate results of your daily routine. Therefore, we also have collected the above calories tracker after having deep research.

Fitbit Sense is at the top of the ranking as it uses a Fitbit App. This app can determine an estimation of your calories burned.

If we talk about Fitbit Charge 4, it’s the most affordable fitness tracker out there. So if you have a tight budget, you can go with it.

Lastly, I hope you will enjoy this article. It will be a great appreciation for us if you pick any tracker from our list. This also helps us to make some pocket money.

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