Fitbit Sense 2 Platinum Aluminum Lunar White Strap Advanced Health & Fitness Smartwatch, 24mm - FB521SRWT-US

Fitbit Sense 2 Platinum Aluminum Advanced Health & Fitness Smartwatch w/ 24mm Lunar White Strap, Model - FB521SRWT-US

Learn to manage stress & sleep better with our most advanced health & fitness smartwatch.

Features

• Manage Stress
  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.
• Sleep Better
  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.
• Health Metrics
  Tune in to Your Body. Sense 2 + Premium 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 the 90 days of health trends to uncover changes to your well-being.
• Heart Health
  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.
• Fitness
  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.
• Google Smarts
  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. Coming soon.

Even More to Love

• The big picture of your health.
  Premium uses data about your body to uncover your unique health patterns. It doesnt stop there: youll also receive personalized insights that empower you to make better choices plus access to workout and mindfulness videos.²
• 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 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.

Stress & Sleep

• All-Day Body-Response Tracking
  A cEDA sensor helps identify when your body is experiencing signs of stress so you can reflect on your emotions, take action and go on with your day. Use of the cEDA sensor may affect battery life.
• Stress Notifications
  Get notified when stress events are detected so you can respond with physical activity, deep breathing & more.
• EDA Scan App For Stress Management
  Do EDA mindfulness sessions on your wrist to help you relax—and get instant feedback on your stress.
• Reflections
  Log your mood and get in tune with your emotional stress.
• Stress Management Score
  See how well your body's handling stress each day. Detailed score breakdown available with Premium.
• Relax Breathing Sessions
  Do simple guided breathing sessions by following prompts on your wrist.
• Sleep Tracking & Sleep Stages
  Automatically tracks how long you sleep each night and time spent in light, deep and REM sleep stages.
• Sleep Profile
  Get matched with a sleep animal and see a personalized analysis of your sleep every month. Requires Fitbit Premium membership.
• Sleep Score
  Learn about the quality of your previous night's sleep with a personalized Sleep Score.
• Smart Wake Alarm
  Vibrating alarm wakes you during the optimal sleep stage so you feel refreshed.

Health

• SpO2 (Blood Oxygen) Tracking
  Tracking SpO2 tells you how well blood oxygen is distributed in your body, which can help you understand potential changes in your wellness.*
  
• Irregular Hearth Rythm Notifications
  Check for signs of an irregular heart rhythm that may be atrial fibrillation (AFib), so you can share this information with your healthcare provider.²
• ECG App for Heart Ryhtm Assessment
  Compatible ECG app lets you assess your heart rhythm for atrial fibrillation—a heart rhythm irregularity—and share results with your doctor.*
  
• Resting Heart Rate
  An important indicator of your heart health & fitness. In general, active people have a lower RHR.
• High & Low Heart Rate Notifications
  If resting heart rate is above or below your usual range, you get notified in the Fitbit app.
• Heart Rate Variability
  Tracks HRV–your time between heartbeats. A downward trend over multiple nights could potentially be a result of overtraining, lack of sleep, stress and more.*
  
• Skin Temperature Sensor
  A built-in sensor tracks changes in your skin temperature to help you understand potential changes in your wellness.²
  Only available in the Fitbit app and only displays variation.
• Breathing Rate
  Small variations in your breathing rate could be a sign of changes in your well-being.²
  
• Wellness Report
  Get a PDF of your key health & wellness stats from the last few months that you can share with a healthcare professional.
  Available with Premium.
• Blood Glucose Tracking (In App Only)
  Log your glucose levels and see how activity, sleep, stress & nutrition impact your trends in the Fitbit app. Advanced analytics available with Premium.²
  
• Menstrual Health Tracking
  Log periods, record symptoms, find patterns in your cycle & estimate your ovulation window.³

Fitness

• Heart Rate Tracking
  The heart of it all—heart rate powers important data like calorie burn, sleep stages, resting heart rate & more.
• Daily Readiness Score
  Find out if your body's ready to work out or needs time to recover. Available with Premium.
• Active Zone Minutes
  Tracks your time in heart rate zones so you get credit when you work harder. Workouts in cardio or peak zones earn double minutes.
• Built-In GPS
  See pace & distance on your wrist—no phone needed.
• Exercise Modes
  Track your favorite exercises like runs, bike rides, weights, yoga & more and get live stats on your wrist.
• Steps, Distance & Calories
  Displays stats on wrist and in the Fitbit app.
• Swimproof
  Water resistant to 50m for the pool, shower & more.
• Cardio Fitness Score
  Estimate your fitness level using your VO2 Max (how well your body uses oxygen during exercise).
• Automatic Exercise Tracking
  Auto-detects when you're exercising and records your stats in the app.
• Workouts on Your Phone
  Sweat to high-energy workouts in the Fitbit app, from Fitbit trainers & popular partner brands. Most workouts require a Premium membership.

Smarts & More

• Call, Text and App Notifications
  See calls, texts & smartphone app notifications on your wrist when your phone is nearby.
• On-Wrist Bluetooth Calls
  Answer calls on your wrist, send callers to voicemail and adjust volume (when your phone is nearby). Coming Soon.
• Alexa Built-In
  Use Alexa Built-in to get quick news and weather, set alarms, control your smart home devices and more.⁶
  
• Google Maps
  Easily get where you're going with an interactive view and turn-by-turn directions on your wrist. Coming soon.
• Google Wallet
  Make purchases from your wrist with Google Wallet everywhere Google Pay is accepted. Coming soon.
• Fitbit Pay
  Make purchases from your wrist with Fitbit Pay™.
  
• Find My Phone
  Find your phone without making someone call it for you.
• Always-On Display Mode
  Keeps your display on at all times (may require more frequent charging).
• Do Not Disturb & Sleep Mode
  Mutes calls & notifications and turns your screen off.
• Compatible with iOS and Android Devices
  Fitbit devices are compatible with iOS and Android phones.
• 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
  Long battery life means less charging, more living.
  Battery life varies with use & other factors.
• Fast Charging
  Get a day's worth of battery in just 12 minutes.
  Battery life varies with use & other factors.
• Clock Faces & Accessories
  Give your Fitbit a stylish new look with dozens of clock faces and accessory bands to choose from.
• Color Touchscreen
  A bright color display for sharp stats all day.
• Fitbit Premium Membership
  Your Fitbit includes a  for advanced insights, hundreds of workouts & mindfulness sessions, Daily Readiness Score, Sleep Profile & more.¹