Fitbit Sense 2 vs Fitbit Versa 4

Fitbit Sense 2 and Versa 4 are smartwatches released in 2022. Sense 2 is the second-generation Fitbit Sense watch while the Versa 4 is the fourth-generation Versa smartwatch.

Let us quickly review the main points of differences and features of Fitbit Sense 2 and Versa 4 smartwatches.

Main differences

The main differences between Fitbit Sense 2 and Fitbit Versa 4 are in terms of the following additions:

  • Sense 2 comes with ECG app to take on-demand electrocardiogram readings.
  • Fitbit Sense 2 also gets a sensor to take skin-based temperature readings.
  • Sense 2 also adds a cEDA sensor to track stress levels. This electrical sensor will measure skin conductance (cEDA) for stress detection
  • Sense 2 has added an EDA scan app to help you undertake mindful sessions for reducing stress.

Everything else apart from these four additional features remains the same on Fitbit Sense 2 and Versa 4.

Versa 4 plus health features make a complete Fitbit Sense 2.

These additional features on Fitbit Sense 2 result in a cost difference of $100 as Sense 2 is pricier than Versa 4 by $100.

There are certain important features that are missing on Fitbit Sense 2 and Versa 4. Some of these features include the following:

  • Sense 2 and Versa 4 do not support the Galileo satellite network in GPS. Both watches support GPS and GLONASS satellite networks only.
  • Sense 2 and Versa 4 do not have any music functionality.
  • Sense 2 and Versa 4 only support Bluetooth wireless connectivity. Both watches cannot work on ANT+ or Wi-Fi. So, you cannot connect over a Wi-Fi network with either smartwatch.
  • Sense 2 and Versa 4 do not have incident detection feature or fall detection feature.

You can see that these features are elementary features expected of a new generation smartwatch.

Fitbit Sense 2 smartwatches

Display specifications

The display specifications of Fitbit Sense 2 and Versa 4 are identical. A list of main display features is presented below for your ready reference.

Display specificationsFitbit Sense 2Fitbit Versa 4
Display lensNo informationNo information
Display shapeBox or SquareBox or Square
Display size1.58″ or 40 mm1.58″ or 40 mm
Display resolution336 x 336 pixels336 x 336 pixels
Color displayYesYes
Ambient light sensorYesYes

Physical specifications

The physical specifications of both watches remain unchanged. The side-by-side comparison table below lists the main hardware elements and specifications of Sense 2 and Versa 4.

Physical specificationsFitbit Sense 2Fitbit Versa 4
iOS compatibleiOS 15 and higher versionsiOS 15 and higher versions
Android compatibleAndroid 9 and higher versionsAndroid 9 and higher versions
Watch size40 x 41 x 11mm40 x 41 x 11mm
Watch weight46 g40 g
Thickness11 mm11 mm
Band sizeSmall and Large bandsSmall and Large bands
Band materialSiliconeSilicone
Watch bodyPolymerPolymer
NFC or Contactless PaymentsFitbit Pay and Google WalletFitbit Pay and Google Wallet
Water resistance5 ATM or 50 Meters5 ATM or 50 Meters
Device storage7 days of activity data7 days of activity data

Health features

The main augmentation on Sense 2 has happened in the health tracking features and stress management.

The addition of an ECG app helps in taking on-demand ECG readings. An on-demand electrocardiogram can help detect irregular heart rhythm or Atrial Fibrillation issues.

The table below lists the main health features of both watches.

Health monitoringFitbit Sense 2Fitbit Versa 4
ECG appYesNo
cEDA Sensor for Stress trackingYesNo
Skin temperature readingsYesNo
EDA Stress management appYesNo
Heart rate monitoringYesYes
Resting Heart rateYesYes
Heart rate variability (HRV)YesYes
Breathing rate monitoringYesYes
Blood Oxygenation monitoringYesYes
Stress monitoringYesYes
Sleep trackingYesYes
Stress scoreYes (in Fitbit Premium)Yes (in Fitbit Premium)
Health DashboardYes (in Fitbit Premium)Yes (in Fitbit Premium)
Temperature readingsYes No
Blood Glucose TrackingYes (in Fitbit Premium)Yes (in Fitbit Premium)
Women HealthYesYes
Body stress scoresDaily Readiness Score (in Fitbit Premium)Daily Readiness Score (in Fitbit Premium)


Fitbit Sense 2 packs additional sensors in the watch when you compare it against the Versa 4 smartwatch.

SensorsFitbit Sense 2Fitbit Versa 4
Barometric altimeterYesYes
Skin temperature readingsYesNo
Heart rate sensorMulti-path optical heart rate trackerOptical Heart Sensor
Blood Oxygenation sensorYesYes
NFC ReceiverYesYes

Sense 2 adds a sensor for Gyroscope. The optical heart rate sensor on Sense 2 can take ECG readings. Other sensors on Sense 2 and Versa 4 are identical.


Fitbit Sense 2 and Versa 4 support GPS and GLONASS networks for GPS connectivity.

Sadly, both watches do not support the Galileo satellite network. Galileo GPS network is a set of satellites that are owned and managed by the European Space Agency.

Galileo GPS network connectivity ensures good and reliable GPS connectivity throughout Europe.

Wireless Connectivity

Fitbit Sense 2 and Versa 4 can only work on Bluetooth 5. Both watches cannot use ANT+ or Wi-Fi for wireless connections.

This seems to be a major drawback of both watches.


Fitbit Sense 2 and Versa 4 do not support music features. Fitbit user forums are full of Fitbit owners unhappy with the omission of music features from both watches.

This means that Fitbit Sense 2 and Versa 4 cannot store music on the watch. Both watches cannot be used to manage music on the paired smartphone too.

On a similar note, you are unable to use Spotify or Deezer on the Sense 2 or Versa 4 smartwatches.


You can notice that the Sense 2 and Versa 4 are identical in size. Both watches provide the same battery backup of 6 days.

When you make use of GPS connections, the battery will drain faster.

Fitbit Sense 2 and Versa support fast charging. You can fully recharge the battery in less than 2 hours. 12 minutes of charging adds a day’s worth of battery backup on Sense 2 and Versa 4.


Fitbit Sense 2 comes at a list price of $299.99 and Fitbit Versa 4 comes at a list price of $199.99.

Final verdict

Fitbit Versa 4 should work fine for most users. If you need ECG coverage, you can definitely decide to get a Fitbit Sense 2.

On a similar note, if you are happy to monitor your stress scores using the eEDA electrical sensor, Sense 2 should make for the right choice.

Suggested reading

You may like to read additional content about smartwatch comparisons below:

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