Reasons you'll love Sense 2Reasons you'll love Sense 2
Learn to manage stress, sleep better and live healthier.
Meet Sense 2 + Premium
Understand stress, then minimize its effects
Better sleep. Improved mood. More energy. Managing stress with Sense 2 can help you get there. Identify patterns of stress with all-day body-response tracking and smart notifications to remind you to reflect on your emotions. Try new ways of managing stress with guided breathing, exercise, meditations and more.
Better understand sleep through science
Sense 2 helps you get the ZZZs of your dreams. Sleep Profile* breaks down your sleep data each month and pinpoints how you can improve your sleep based on 10 key sleep metrics. Check your Sleep Score to learn about the quality of your previous night's sleep, and get a breakdown of time in light, deep & REM sleep with Premium.
Tune in to your body
Sense 2 helps illuminate changes in your wellness. Check your Health Metrics dashboard to see heart rate variability, skin temperature variation, SpO2 and more. You can also use 90 days of health trends to uncover changes to your well-being.***
Everything starts with heart
Use the ECG app for on-demand atrial fibrillation assessment or turn on irregular heart rhythm notifications to assess your heart while you're still or sleeping.§ Heart-rate tracking surfaces insights from your sleep, stress, activity and more while high & low heart rate notifications keep a close eye on your heart rate.
Work out smarter
Do what you love, just get more out of it. Daily Readiness Score* shows what level of workout your body is ready for, including an Active Zone Minutes goal and Premium workout recommendation. Track 40+ exercise modes and use built-in GPS◆ for real-time pace and distance—even in up to 50 meters of water.
The apps you love are here
Reach your destinations easier with turn-by-turn directions from Google Maps and make speedy, secure purchases from your wrist with Google Wallet.Google Maps on Android only, coming Spring 2023 to iOS.
- Fitbit Sense 2
- Classic band (small & large)
- Charging cable
Sensors & Components
- Multi-path optical heart rate sensor
- Electrical sensor to measure skin conductance (cEDA) for body response tracking
- Multipurpose electrical sensors compatible with ECG app & EDA app. ECG not available in all countries.
- Red and infrared sensors for oxygen saturation (SpO2) monitoring
- 3-axis accelerometer
- Skin temperature sensor
- Ambient light sensor
- WiFi (deactivated, cannot be turned on)
- Built-in GPS + GLONASS
- Vibration motor
- Speaker (75dB SPL @10cm)
Battery & Power
- Battery life of 6+ days. Battery life and charge cycles vary with use, settings and other factors; actual results will vary. Use of the always-on display, SpO2 and the cEDA sensor will require more frequent charging. Up to 5 hours with continuous GPS. We recommend charging your tracker every few days to ensure you are always tracking.
- Battery type: Lithium-polymer
- Charge time (0-100%): Two hours
- Charge 12 minutes to get one day of battery life
- Radio transceiver: Bluetooth® 5.0
- Saves 7 days of detailed motion data, minute by minute
- Saves daily totals for the last 30 days
- Stores heart rate data at one-second intervals during exercise tracking and at five-second intervals all other times
Water resistant to 50m. After getting the band wet, we recommend drying the band because, as with any wearable device, it's best for your skin if the band is clean and dry.Learn more.
Give your wrist a rest by taking the band off every now and then. If the band gets wet or you sweat in it, remove and completely dry the band before putting it back on.Learn more.
This watch includes a band made of a flexible material similar to that used in many sports watches, as well as an aluminum watch case and buckle.
Like all heart rate tracking technologies, accuracy is affected by physiology, location of device and different movements.
- Operating temperature: -14° to 113°F
Google account will be required. See fitbit.com/devices.
The Fitbit app is compatible with most popular phones. To set up and use your Fitbit products and services, you must install the Fitbit app on a compatible device running one of the following operating systems:
- Apple iOS 15 or higher.
- Android OS 9 or higher. See additional tips for Android phoneshere.
Syncing range: Up to 30ft
- Certain features like smartphone notifications may require Android 9+. Check your device compatibility.
- Syncing requires Bluetooth® LE, an internet connection and location permissions granted on the phone
Print this guide to find the right size for you. Both small and large sizes included in box.
Small:Fits wrist 5.5" - 7.1" in circumference
Large:Fits wrist 7.1" - 8.7" in circumference
- 1.5" l x 1.5" w x 0.45" h
The big picture of your health
Premium uses data about your body to uncover your unique wellness patterns. It doesn't stop there: you'll also receive personalized insights that empower you to make better choices plus access to workout and mindfulness videos.*
Style & comfort
Sense 2 is sleek and slim with raised band attachments that make it more comfortable for all-day wear. The modern design complements styles ranging from funky to formal.
Smart info on the go
Get notifications from your phone, pay for retail items◆◆, use the built-in voice assistant and send quick replies and voice replies right from your wrist.◆◆◆
Battery for 6+ days
Sense 2 tracks all your health & fitness stats for 6+ days without having to stop for a charge. Plus get a full day's charge in just 12 minutes.◆
Display your way
Choose from hundreds of clock face designs and store up to 5 favorites right on your wrist.
Easily pay hands-free
Pay from your wrist at retail stores or transit stations that accept contactless payments.◆◆
Ask your voice assistant
Use Amazon Alexa Built-in to ask your Fitbit smartwatch questions, set alarms, check the weather and more.††
The app has it all
See your stats, trends and all your progress in one place with the Fitbit app—plus access your Premium membership for personalized guidance.
Menstrual health tracking
Log periods, symptoms and more with menstrual health tracking in the Fitbit app.‡
Google account will be required. Seefitbit.com/devices.
Premium requires a paid membership. Content and features may change.
Accessories sold separately. See here for more information.
*New and returning Premium members only. Must activate membership within 60 days of device activation (requires valid payment). This membership cannot be gifted. Cancel before end of membership to avoid recurring fees. Content and features may change. See here for more details. T&C apply.
***The Health Metrics dashboard and the metrics displayed in the dashboard are not available in all countries. This feature should not be relied on for any medical purposes. It is intended to provide information that can help you manage your well-being.
§ The Fitbit ECG app is only available in select countries and with select devices. Not intended for use by people under 22 years old. See here for additional details.
◆ Battery life varies with use & other factors; GPS may reduce battery life.
◆◆ See bank and transit availability here.
◆◆◆ Available when phone is nearby. Android only.
†† Voice assistant availability and features may vary, see here. Amazon, Alexa and all related marks are trademarks of Amazon.com, Inc. or its affiliates. Alexa is not available in all languages and countries. Alexa features and functionality may vary by location.
†††Offer ends December 31, 2023 at 11:59PM PST. Only one Premium membership + 2-year protection plan (the "Bundle") per customer and for new and returning Premium members only. Bundle may not be gifted. Purchase of the Bundle will exclude you from redeeming the 6-month Premium membership included with your device purchase. Valid payment method required. Cancel before membership ends to avoid recurring fees.
‡Not intended to be used for contraceptive or other medical purposes. May not accurately predict your menstrual cycles or related information. Intended only to help you monitor and keep track of certain information.