Note: The product is brand new, but the box may have been opened for functionality testing.

Key Features

Sleep experience (Premium)
Improve sleep quality, increase your energy and better manage stress with help from Sense 2 and Premium. Track your sleep each night to see how much time you spent in deep, light and REM sleep. Then check your Sleep Profile—a report that breaks down your sleep patterns and trends over the past 30 days plus provides personalized guidance for better rest. You can even program your display to stay dark at night and set gently buzzing morning alarms that wake you up during the ideal sleep stage for a refreshing morning rise.

Sleep Profile (Premium)
Learn your sleeping style with a monthly breakdown of 10 key sleep metrics. You'll see which of the six distinct Sleep Animals your sleep compares to and what you can do to get better rest.

Sleep stages & sleep score
Learn about the quality of your previous night's sleep with a personalized Sleep Score. With Premium, see a breakdown of time in light, deep & REM sleep to see what's impacting your rest.

Smart wake
Wake up feeling more rested, refreshed and ready to take on your daily workout with a smart alarm that goes off during the optimal stage of sleep—no more than 30 minutes before its set time. Regular, exact-time alarms are also available.

Sleep mode
Keep your watch from waking you with sleep mode. It mutes notifications and stops your screen from turning on at night. Set a schedule to turn sleep mode on automatically.

All-day body-response tracking
Using a newly added sensor, identify signs of stress, excitement, effects from caffeine and more. Over time you'll be able to recognize your stress triggers and manage it in the moment. Use of the cEDA sensor may affect battery life.

Reminders to reflect
Smart notifications prompt you to log your emotions based on your body responses to stress. Reflect on what may be triggering them to spot trends.

EDA Scan app
Perform an EDA Scan to see how your body responds during a meditation session to support your mindfulness practice.

Mood logging
Build your emotional awareness so you can do more of what brings you joy. Log your mood anytime and compare against stress-detection data to spot trends.

End-of-week summary
Check in on your stress-management efforts to help you identify causes of stress, successful management techniques and what to try next.

Stress Management score
Get a handle on your stress. Higher score? You’re showing fewer signs of stress. Lower score? Time to find better balance—try a meditation or going for a walk.

Stress Management Score breakdown (Premium)
See what’s driving your score so you know whether improving your sleep, changing your activity or focusing on mindfulness will help you better manage stress.

Mindfulness content
Relax, clear your mind or find ways to improve your focus by choosing from hundreds of meditation and yoga sessions included with Premium.

Heart health experience
Your heart is key to your health. Better understand and track your heart health with Sense 2 and Premium. Around-the-clock heart-rate tracking provides insight into your sleep, stress, activity and more while the ECG app gives insight into your heart rhythm.
*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 fitbit.com/ecg for additional details.

Advanced health experience
By tracking key health metrics like SpO2 & heart rate variability, Fitbit can help illuminate changes in your wellness so you can make adjustments to your routine to better support your body and health.

Fitbit ECG app
With a compatible ECG app right on your wrist, assess your heart rhythm for atrial fibrillation—a heart rhythm irregularity—and share the results with your doctor.
*The Fitbit ECG app is only available in select countries and with select Fitbit products. Not intended for use by people under 22 years old. See fitbit.com/ecg for additional details.

Health Metrics dashboard
Know your body better with the Health Metrics dashboard in the Fitbit app, where you can track breathing rate, resting heart rate, heart rate variability, SpO2 and skin temperature variation. See your trends from the past week—or the past 90 days with Premium—and use them to help uncover changes in your wellbeing.
*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 wellbeing. The SpO2 feature requires more frequent charging.

High & low heart rate notifications
Your heart rate is a key indicator of health, so Sense 2 keeps you informed when it's above or below your set resting threshold.

24/7 heart rate tracking with Pure Pulse
Optimize workouts and track all-day activity, calorie burn and sleep with Pure Pulse continuous heart rate tracking, then see your resting heart rate trends and cardio fitness level (VO2 Max) in the Fitbit app.

Oxygen saturation (SpO2)
(short) Track SpO2—the level of oxygen in your blood—to help you learn when there may be an indication of important changes in your well-being.
*Not available in all markets. The SpO2 feature is not intended to diagnose or treat any medical condition or for any other medical purpose. It is intended to help you manage your well-being and keep track of your information.

Activity experience
Sense 2 and Premium are all about enhancing the activities you love. Start the morning with guidance on what your body can handle for the day, then a recommended workout. Track your moves with real-time heart rate to get the most out of all your efforts. See how many calories you burned, a map of your outdoor route and more, then take a peek at how your efforts compare with your friends and family.
*Content and features may vary.

Daily Readiness Score (Premium)
Enhance your workout routine with a score that reveals if you’re ready to push or should focus on recovery.
*Daily Readiness requires a Fitbit Premium membership. Premium content recommendations are not available in all locales and may be in English only.

Active Zone Minutes
Get the results you want from every workout. Active Zone Minutes uses your heart rate to guide you toward your desired intensity level—then helps keep you there.

Built-in GPS
See your real-time pace and distance without your phone using built-in GPS during outdoor activity, then see a map of your workout route in the Fitbit app.

Workout intensity map
After outdoor exercise with GPS, check your workout intensity map in the Fitbit app to see your pace and heart rate zones throughout your route and learn where you put in the most effort.

40+ Exercise modes
Sense 2 tracks more exercises than ever—like skiing, golf, stand-up paddle boarding and more—and see all your stats in real time.

All-day activity tracking
See how every part of your day gets you closer to your goals. Sense 2 tracks all-day activity like steps, distance, floors climbed, calories burned and Active Zone Minutes.

Swimproof
Sense 2 is water resistant up to 50 metres, which means you’re free to wear it in the rain, at the beach and beyond.

Notifications
Get notifications for calls, texts, calendar events and apps like Gmail and WhatsApp—plus send quick replies and voice replies right from your wrist.
*Available when phone is nearby.

Calls from your wrist
Use the built-in mic and speaker to take Bluetooth® calls hands-free, send callers to voicemail and adjust volume.
*Coming soon. Available when phone is nearby.

Built-in voice assistant
Use Amazon Alexa Built-in to get quick news and weather, set bedtime reminders and alarms, control your smart home devices and more—just by speaking to your watch.
*Voice assistant availability and features may vary, see fitbit.com/voice. Alexa is not available in all languages and countries. Alexa features and functionality may vary by location. Amazon account and app required. Alexa compatible smart home devices only.

Find My Phone app
Can’t find your phone? Easily locate a misplaced phone right from your wrist by using the built-in Find My Phone app on your Fitbit smartwatch. Just tap to activate an alert and your phone will continuously ring and vibrate until you discover its location.
*Fitbit Mobile app must be running on your smartphone.

Fitbit Pay
Upload your credit and debit cards to your watch to tap and pay for purchases and ride transit without your wallet.
*See bank and transit availability at fitbit.com/fitbit-pay/banks

Always-on display mode
See real-time exercise stats and check the time with just a glance—even when your hands are full. Turn the mode off to be more discreet.
*Always-on display mode requires more frequent charging.

Do not disturb mode
Use do not disturb mode when you want to mute call, text, calendar and app notifications during the day.

Works on Android & iPhone
Sense 2 is compatible with phones running the latest version of Android or iOS.

Premium experience
A balanced, healthy lifestyle looks different for everyone. Whether you want to level up your workouts or dial in your nutrition, Premium helps you do it all. It takes data about your body and uncovers unique health patterns, then serves up actionable insights and custom recommendations to help you sleep better, reduce stress and be your best. With an experience this personalised, it’s easier to stay motivated and make progress where it matters most to you.

6-month Fitbit Premium membership
Go Premium and get personalised insights that help you live your healthiest. Know your body better with Daily Readiness Score and Stress Management Score breakdowns, and see long-term trends in your Sleep Profile and Health Metrics dashboard. Then use those insights and Premium tools to enhance your well-being.
*New Premium members only. Premium included membership must be activated within 60 days of device activation. Valid payment method required. Cancel before membership ends to avoid subscription fees. T&C apply.

Design overview
Sense 2 is designed to feel like a natural and comfortable extension of your wrist. It's sleek and slim with all-new raised band attachments that make it more comfortable for all-day wear. And its soft, nature-inspired color palette aligns with high-end, fashion-forward colour trends.

Slim design
Sense 2 is built to feel natural on your wrist and complement styles both casual and elegant. It's sleek and slim with all-new raised band attachments that make it more comfortable for all-day wear.

6+ day battery life
With a long battery life, Sense 2 tracks all your health & fitness stats for 6+ days without having to stop for a charge.
*Varies with use and other factors; up to 12 hours with continuous GPS.

Fast charging
Less charging means more doing. And with Sense 2, you can get a day's worth of battery in just 12 minutes.

Clock faces
Choose from hundreds of clock face designs and store up to five favorites right on your wrist. And easily switch your look from classic to modern and back—or go totally unique with your own Bitmoji or photo.

Accessories
Create endless looks with Fitbit 24mm attach accessory bands, including designer collections from Brother Vellies, Victor Glemaud and Pendleton. Quick-release makes it easier than ever to swap looks.
*Accessories sold separately. Versa 3, Versa 4 and Sense accessories can also be worn with Sense 2.