Fitbit Sense vs Fitbit Versa 4 – Which Should You Buy?

Fitness Tracker
By Maya Collins • April 28, 2026
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Fitbit Sense and Fitbit Versa 4 has some key difference. The Fitbit Sense is the more advanced model, with premium sensors for stress, temperature, and ECG. Meanwhile, the Fitbit Versa 4 focuses on fitness and daily readiness with a more affordable price. Let’s explore their differences and similarities to find your perfect fit!

Feature-by-Feature Breakdown

EDA Sensor:

  • The Fitbit Sense has an EDA sensor that detects electrodermal activity to help you identify and manage stress more effectively throughout the day.
  • The Fitbit Versa 4 does not have an EDA sensor.
Winner:

Fitbit Sense

ECG App:

  • The Fitbit Sense features an ECG app that allows you to assess your heart rhythm to detect signs of atrial fibrillation directly from your wrist.
  • The Fitbit Versa 4 does not support ECG functionality.
Winner:

Fitbit Sense

Skin Temperature Sensor:

  • The Fitbit Sense includes a skin temperature sensor that tracks nightly variations to help you notice early signs of illness or changes in your wellness.
  • The Fitbit Versa 4 does not include any skin temperature tracking.
Winner:

Fitbit Sense

Heart Rate Alerts:

  • The Fitbit Sense supports high and low heart rate notifications that alert you when your heart rate moves outside of your normal range.
  • The Fitbit Versa 4 does not support high and low heart rate alerts.
Winner:

Fitbit Sense

Stress Management Score:

  • The Fitbit Sense has a Stress Management Score that combines physical signals and mood tracking to help you better understand and manage emotional strain.
  • The Fitbit Versa 4 shows a basic score without EDA-based input.
Winner:

Fitbit Sense

Built-in GPS:

  • The Fitbit Sense features a built-in GPS that allows you to track your pace and distance during outdoor runs or rides without needing your phone.
  • The Fitbit Versa 4 also includes built-in GPS.
Winner:

Tie (See Also: Fitbit Sense Vs Fitbit Sense 2 )

Biosensor Core:

  • The Fitbit Sense comes with a biosensor core that enables advanced health metrics tracking to ensure more accurate readings across different conditions.
  • The Fitbit Versa 4 does not include a biosensor core.
Winner:

Fitbit Sense

Voice Assistant Support:

  • The Fitbit Sense supports both Alexa and Google Assistant that let you control smart home devices, set reminders, and ask questions using voice commands.
  • The Fitbit Versa 4 supports only Alexa.
Winner:

Fitbit Sense

On-Wrist Calls:

  • The Fitbit Sense includes on-wrist call support that lets you take Bluetooth calls directly from your watch to stay connected without pulling out your phone.
  • The Fitbit Versa 4 also supports on-wrist calls.
Winner:

Fitbit Sense

Battery Life:

  • The Fitbit Sense has a long battery life that lasts over 6 days to reduce frequent charging and ensure uninterrupted health and fitness tracking.
  • The Fitbit Versa 4 has up to 6 days of battery life.
Winner:

Fitbit Sense

Check Fitbit Sense Best Price
Check Fitbit Versa 4 Best Price

Specs at a Glance

FeatureFitbit SenseFitbit Versa 4
Display Size1.58-inch AMOLED1.58-inch AMOLED
Always-On DisplayYesYes
Case MaterialAluminum with stainless steel ringAluminum
TouchscreenYesYes
Physical ButtonsTactile side buttonTactile side button
Dimensions40.5mm x 40.5mm x 12.35mm40.5mm x 40.5mm x 11.2mm
WeightAround 45g (with band)Around 40g (with band)
Water Resistance5 ATM (swimproof)5 ATM (swimproof)
Battery LifeUp to 6+ daysUp to 6 days
Built-in GPSYesYes
Heart Rate Sensor24/7 optical heart rate sensor + multipath heart rate sensor24/7 optical heart rate sensor
ECG AppAvailable (FDA-cleared)Not available
EDA Sensor (Stress)AvailableNot available
Skin Temperature SensorAvailableNot available
Sleep TrackingYesYes
Sleep Profile (Premium)YesYes
Fitbit PayYesYes
Wi-FiNoNo
BluetoothBluetooth 5.0Bluetooth 5.0
App CompatibilityiOS and AndroidiOS and Android

 

Who Should Buy What?

Buy the Fitbit Sense if you:

  • Want advanced health features like ECG and skin temperature tracking.
  • Care about stress management through the EDA sensor.
  • Prefer more comprehensive health data and wellness insights.
  • Are looking for a smartwatch that supports both fitness and medical-grade monitoring.
  • Don’t mind paying more for premium features.

Check Fitbit Sense Best Price (See Also: Fitbit Charge 5 Vs Charge 6 )

Buy the Fitbit Versa 4 if you:

  • Want a capable fitness smartwatch at a more budget-friendly price.
  • Don’t need ECG or temperature tracking.
  • Prefer a simpler experience focused on workouts and daily readiness.
  • Want GPS, sleep tracking, and heart rate monitoring in a sleek design.

Check Fitbit Versa 4 Best Price

Winner by Category

CategoryWinner
EDA SensorFitbit Sense
Battery LifeFitbit Sense
Stress Management ScoreFitbit Sense
Heart Rate AlertsFitbit Sense
ECGFitbit Sense
Temperature SensorFitbit Sense
Biosensor CoreFitbit Sense
Built-in GPSTie

What They Have in Common

  • Display and Design: Both watches feature bright AMOLED touchscreens with always-on display support, making them easy to read during workouts or daily use.
  • Fitness Tracking: Both include 24/7 heart rate monitoring, SpO2 measurement, step counting, and workout tracking to help users stay on top of their fitness goals.
  • Sleep Tracking: Each model provides detailed sleep stage analysis, including light, deep, and REM cycles, which is valuable for improving rest and recovery.
  • Built-in GPS: Both devices have built-in GPS, allowing users to track runs, walks, and bike rides without carrying a phone.

FAQ (Quick Answers)

Does the Fitbit Sense support ECG functionality?
Yes, the Fitbit Sense includes an FDA-cleared ECG app that can detect signs of atrial fibrillation by analyzing your heart rhythm directly from your wrist.

Can both the Fitbit Sense and Versa 4 track sleep and provide sleep scores?
Yes, both devices track sleep stages and offer sleep scores. They also provide sleep profiles with a Fitbit Premium subscription for deeper insights into sleep patterns.

Is there a difference in GPS functionality between the Fitbit Sense and Versa 4?
No, both smartwatches include built-in GPS for accurate pace and distance tracking without needing your phone during outdoor activities.

Which device is better for stress tracking and mindfulness?
The Fitbit Sense is better suited for stress tracking because it includes an EDA sensor that measures electrodermal activity to detect stress responses and provide guided mindfulness sessions.

Do either of the devices offer skin temperature tracking?
Only the Fitbit Sense includes a skin temperature sensor that measures nightly temperature variations to help monitor wellness trends.

Are both smartwatches compatible with iOS and Android?
Yes, both the Fitbit Sense and Fitbit Versa 4 work with iOS and Android devices, allowing for notifications, syncing, and app integration across platforms. (See Also: Fitbit Versa 2 Vs Fitbit Versa 4 )

Do both watches support voice assistants?
Yes, both smartwatches support Google Assistant and Amazon Alexa built-in, giving users the choice of hands-free voice control.

Is there music storage available on either watch?
No, neither the Fitbit Sense nor the Versa 4 offers onboard music storage. However, both can control music playing from your phone.

Which one is better for health monitoring overall?
The Fitbit Sense is better for health monitoring thanks to its ECG app, EDA sensor, and skin temperature tracking, all of which are not present in the Versa 4.

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Do both watches come with the same size and style options?
Yes, both come in one size with small and large bands included. They also use the same band system, making accessories interchangeable between models.

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