Is the Fitbit Sense good for stress tracking?

Yes. Its EDA scan measures electrodermal activity, which can indicate your body's response to stress, and it logs skin temperature each night so you can spot trends.

Does the Fitbit Sense have ECG?

It has an ECG app to assess heart rhythm for atrial fibrillation, but the app is only available in select countries and is not intended for people under 22.

How long does the battery last?

About six days with typical use, and a 12-minute fast charge gives a full day. Continuous GPS use drops it to roughly 12 hours.

Does it work without a phone?

Built-in GPS tracks runs, hikes and rides without your phone. Bluetooth calls need your phone nearby.

The watch, a charging cable and bands in small and large sizes; the small band fits wrists 140–180 mm and the large 180–220 mm.

How does it compare with the Apple Watch?

The Sense lasts far longer per charge and focuses on stress and sleep data, while the Apple Watch offers a much larger app ecosystem and a brighter screen.

Where is the Fitbit Sense Advanced Smartwatch cheapest?

At routeshop shop, for $499.99, as of our latest check.

Fitbit Sense Advanced Smartwatch

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$499.99at routeshop shopChecked Nov 9

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What reviewers say

Owners and reviewers praise the Sense for its stress, sleep and heart tracking and its long battery life. Many find the app ecosystem thin and the touch interface less responsive than an Apple Watch or Galaxy Watch.

What people mention

Stress trackingPraisedOwners say the EDA scan gives a useful read on stress through the day.
Battery lifePraisedReviewers report roughly six days per charge with normal use.
App selectionCriticisedReviewers say the third-party app store is thin compared with Apple and Samsung watches.
Touch controlsMixedSome find the interface and touch response less smooth than rivals.
GPS battery drainCriticisedContinuous GPS use cuts battery life to about 12 hours.

About the Fitbit Sense Advanced Smartwatch

Fitbit Sense is a smartwatch for tracking health and wellness. The ECG app can assess your heart for atrial fibrillation, a heart rhythm irregularity, and you can share the results with your doctor. The ECG app is only available in select countries and is not intended for people under 22.

The EDA Scan app detects electrodermal activity, which may indicate your body's response to stress. A skin temperature sensor logs your temperature each night so you can see when it varies. Nightly blood oxygen levels can be shown on select clock faces. The watch also sends notifications when your heart rate seems above or below your average.

Built-in GPS shows pace and distance during runs, hikes and rides without your phone. A built-in mic and speaker let you take Bluetooth calls hands-free when your phone is nearby. Google Assistant or Amazon Alexa is built in for news, alarms, bedtime reminders and smart home control by voice. New users get a 6-month free trial of Fitbit Premium. The watch requires the Fitbit app on a compatible iPhone or Android device, and a Google account is required.

Brand

Fitbit

Model number

FB512BKBK

Color

Carbon/Graphite

Band sizes

Small fits wrists 140 mm to 180 mm in circumference; Large fits wrists 180 mm to 220 mm

Battery life

6+ days; up to 12 hours with continuous GPS (varies with use and other factors)

Charging

Fast charging gives a full day's charge in 12 minutes