Is the Sense 2 worth it over the original Sense?

The Sense 2 improves stress tracking with continuous cEDA and adds a Daily Readiness Score, but it removes Wi-Fi music downloads and Google Assistant. Buy it for health tracking; keep the original if on-watch music and voice assistant matter to you.

Does the Sense 2 work with iPhone?

Yes, it pairs with both iOS and Android through the Fitbit app. Some features, such as on-wrist replies to messages, are more limited on iPhone than on Android.

How accurate is the ECG feature?

The ECG app records a reading you can export as a PDF for a doctor. It is cleared for atrial fibrillation assessment in select countries and is not intended for people under 22.

Can I take calls on the watch?

Yes. The Sense 2 has a speaker and microphone for on-wrist Bluetooth calls when paired to your phone, plus text and app notifications.

Is it waterproof for swimming?

It is water resistant to 50 meters, so it can be worn in the pool and shower. Fitbit advises against use in hot water or high-velocity water like diving.

The watch, a charging cable and small and large wristbands. The charger is proprietary, so you need the included cable to recharge.

Where can I buy the Fitbit Sense 2 Health and Fitness Smartwatch?

15 stores we checked sell it, including Amazon, Boston College Bookstore, Walmart, Best Buy, Target.

Fitbit Sense 2 Health and Fitness Smartwatch

Q: Where is the Fitbit Sense 2 Health and Fitness Smartwatch cheapest?

At Amazon, for $219.99, as of our latest check.

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$219.99at AmazonChecked 32 min ago

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Price facts

Lowest price today: $219.99 at Amazon (checked Nov 13, 2026).

What reviewers say

Owners and reviewers praise the stress and sleep tools and the multi-day battery, and many find the Daily Readiness Score genuinely useful. The common complaints are the thin smartwatch feature set, the loss of music storage and voice assistant support, and a design that feels dated next to Apple and Samsung watches.

What people mention

Stress trackingPraisedOwners say the all-day stress readings and body response alerts make them more aware of tension during the day.
Sleep trackingMixedReviewers find sleep stages and the Sleep Score easy to read, but some say wake detection and accuracy lag behind competing trackers.
Battery lifePraisedUsers report roughly a week of use per charge, far longer than most full smartwatches.
Smart featuresCriticisedReviewers criticise the lack of an app store, music storage and Google Assistant compared with the original Sense and rival watches.
Build and designMixedThe aluminum case and soft-touch finish are comfortable, but owners describe the look as plain for the price class.
GPS and workoutsPraisedBuilt-in GPS and the workout intensity map are seen as solid for running and cycling, with 40+ modes covering most activities.

About the Fitbit Sense 2 Health and Fitness Smartwatch

Fitbit Sense 2 is a health and fitness smartwatch built to help manage stress, improve sleep and support daily activity. It tracks stress throughout the day with cEDA and gives a daily Stress Management Score. It also includes an ECG app for atrial fibrillation assessment, irregular heart rhythm notifications, SpO2 and a health metrics dashboard. Mindfulness content is included.

For sleep, it records daily sleep stages and a Sleep Score. It also has a smart wake alarm and a do not disturb mode. For workouts, it has built-in GPS with a workout intensity map, a Daily Readiness Score, Active Zone Minutes and 24/7 heart rate tracking. It offers 40+ exercise modes and automatic exercise tracking, and it is water resistant to 50 meters.

The watch is made for all-day wear. It handles Bluetooth calls, texts and phone notifications on the wrist when the phone is nearby. It has customizable clock faces, Amazon Alexa built-in, and Google Wallet and Maps. Battery life is 6+ days, and it needs the Fitbit app with a compatible iPhone or Android phone and a Google account.

Brand

Fitbit

Model

FB521

Part number

6514034

Color

Shadow Grey/Graphite

Release date

26-09-2022

Health tracking

All-day stress detection (cEDA), ECG app, irregular rhythm notifications, SpO2, health metrics dashboard