
Health-conscious and Fitness lover prefer Fitbit for accuracy, stylish, compact in size. These are latest, popular and most accurate Fitbit for calories burned product of Fitbit. Now, Fitbit is owned by Google in 2021.
These Fitbit devices—Fitbit Versa 3, Fitbit Charge 6, and Fitbit Sense—are almost near accuracy. These devices are not perfect and do not replace medical devices, but they show a 2-3% accuracy difference.
Accuracy depends on sensors and programming. How these sensors are working must be checked.
most accurate Fitbit for calories burned
There are two categories where Fitbit plays its role Smartwatch and Tracker
A) Smartwatch category
These are the list of Fitbit smartwatches that have nearly the most accurate Fitbit for calories burned. You must check its reviews before you invest.
- Fitbit versa 3
- Google Pixel Watch 2
B) Fitbit Tracker
- Fitbit Charge 6
Review of these devices and their accuracy
A) Fitbit Versa 3
This device is a mid-premium-range smartwatch with a 4.1 rating and 43000 reviews on Amazon. You must consider it in your gadget list. Its competitors are the Gramin Forerunner 245 and Samsung Watches.

You can check the price at Amazon – Click here
Body
- Build quality: Its built quality is good, which is anodized aluminum and its dimensions are 40.48 x 40.48 x 12.35mm
- Strap Material – Flexible and durable elastomer material. This material is good if it provides a silicon strap which is good for the skin.
Display
- AMOLED Display– How to check AMOLED display is a question.
- There are 100+ watch faces given
Battery
- Its battery life is about 6 days.
Special features
- It has music control
- IP68 rating (Water and Dust Resistance)
- Having Music Control
- Third-party applications you can install that are not in a newer version, like Fitbit Versa 4 and Sense 2,.
In terms of calories burned accuracy, this device displays a slightly higher side of calories burned, which is about 2 to 3 percent higher than the Apple Watch. Any device is not as accurate as medical devices, but it is nearly the most accurate Fitbit for calories burned.
In this watch, a new PurePulse 2.0 optical HR sensor is included. This sensor’s accuracy displays nearly a 1-2 percent difference from the Gramin watches. This difference gives you an overall idea about your health. There is no smartwatch that is as accurate as medical equipment.
The most important thing is that in Fitbit Versa 3, you can turn ON the Heartbeat notification. You can set an upper limit for heart rate and a lower level and whenever this limit exceeds you get a notification while doing exercise.
You will get the same SPo2 reading in Oximeter and Fitbit Versa 3. This shows accuracy.
Heart speed, average speed aerobic and anaerobic data
If you have Fitbit Versa 3, you do not need to upgrade to Fitbit Versa 4 and Fitbit Sense. Features like stress management, Skin temperature, and Mensural cycle features make a difference with Fitbit Versa 3 and Fitbit Sense.
Advantages of Fitbit Versa 3 in Health
- Breath per minute
- Heart rate ability
- Oxygen saturation
- Calories
- Distance
The drawback of Fitbit Versa 3
- No ECG feature
- No EDA scan feature
- No Stress management feature
- No skin temperature sensor
B) Fitbit Sense

This device is like the Fitbit Versa 3. You get the same body-type material, display, sensors, and battery consumption. All the features of Fitbit Versa 3 are built into Fitbit Sense.
Difference between Fitbit Versa and Fitbit Sense
- In Fitbit Sense, you get some additional features, like
- ECG readings
- The EDA Scan feature (to calculate stress in your body) is good.
- Skin temperature
- predict Mensural cycle
All these features are not accurate, according to medical devices. Even Apple devices are not accurate, but they can display the reading, which gives a little bit of an idea about your health.
C) Fitbit Charge 6

Fitbit Charge 6 is the latest tracker for Fitbit. This device’s accuracy rate of heart rate, calorie burn, and skin temperature is higher than Fitbit Versa 4, and many more features have been added from previous trackers.
Here is the list of features inside a table; get the review in the remarks section.
SL no | Category | Features | Remarks Comparison with other tracker |
---|---|---|---|
1. | Body | Optical heart rate monitor 3-axis accelerometer Built-in GPS + GLONASS Red and infrared sensors for oxygen saturation (SpO2) monitoring. temperature sensor (To measure skin temperature variation). Vibration motor Ambient light sensor Electrical sensors compatible with the ECG app & EDA Scan app | – Built quality is better than other Fitbit Tracker. – Little bit of Bulk in Size |
2 | color | Obsidian / Black Aluminium Porcelain / Silver Aluminium Coral / Champagne Gold Aluminium | It has good color combination like Fitbit Inspire 3 |
3 | Dimensions | 3.87cm Length x 1.86cmWidth x 1.17cmHeight Strap- For Small wrist – Small wrist: 130mm – 170mm in circumference Large wrist:170mm – 211mm in circumference | Both Small and large wrist straps are available inside a box. |
4 | Battery | Lithium-Polymer Battery Last – 7 days (depend upon Use) Charge – Within 2 hours | Available almost latest Fitbit tracker |
5 | Compatibility | Apple iOS 15 and higher Android 9 or higher Syncing range: Up to 9m | Compatibility with both Apple and Android |
6 | GPS | Built-in GPS | It has built-in GPS |
7 | sensors | Optical heart rate monitor 3-axis accelerometer Built-in GPS + GLONASS Red and infrared sensors for oxygen saturation (SpO2) monitoring. temperature sensor (To measure skin temperature variation). Vibration motor Ambient light sensor Electrical sensors compatible with ECG app & EDA Scan app | ECG feature comes only in premium trackers and watches. – Great feature |
8 | Fitness Features | Heart rate Daily Readiness Score 40+ Exercise Modes Heart rate tracking Active Zone Minutes See the pace & distance on your wrist. Cardio Fitness Score Smart Track Automatic Exercise Recognition (in-app only) Workouts on your phone All-Day Activity Tracking Workout Intensity Map (in-app only) | Accuracy and |
9 | Health feature | ECG app for heart rhythm assessment High & Low Heart Rate Notifications SpO2 (blood oxygen) tracking Skin temperature variation Resting heart rate Breathing Rate Irregular heart rhythm notifications Blood glucose tracking is Available in the Fitbit App Menstrual health tracking Health & Wellness Reminders STRESS & SLEEP Stress Management Score EDA Scan app for stress management Sleep Score Sleep Profile Sleep tracking & sleep stages | Accuracy level is good |
10 | Additional Feature | Smart Wake Alarm SMARTS & MORE Do not disturb & sleep mode YouTube Music controls Google Maps Call, text, and app notifications Colour touchscreen Find My Phone Always-on display mode Google Fast Pair | Always-on display Inbuilt GPS |
11 | Price in Amazon | 129 dollar | 10 dollars more than the Fitbit Inspire 3. |
conclusion
In the end, the Fitbit Versa 3 is fine with its built-in quality and accuracy, but if you need a device that has an ECG feature, then you must choose Fitbit Sense.
There are Fitbit Versa 4 and Fitbit Sense 2 on the market that don’t support third-party applications, but in Versa 3 and Sense, you have these options.
It is a budget-friendly health tracker. Here with 10 dollar difference, it provides many more features than the Fitbit Inspire 3.
All the above devices are the best in their price range. Samsung is a competitor of Fitbit and in this cluttered market, Fitbit holds its position strongly.