Fitbit Inspire 3 Midnight Zen Fitness Tracker - FB424BKBK-US
which ends 06/28/2026
Track Your Health and Fitness With the Fitbit Inspire 3
Fitness trackers have become increasingly popular as a way to track fitness and health data. These small, wearable devices can track a variety of metrics, including steps taken, calories burned and even sleep patterns. If you're looking for an affordable way to track your fitness, consider the Fitbit Inspire 3 fitness tracker.
One of the key benefits of the Fitbit Inspire 3 is its ability to track steps taken and distance traveled. This can be a great way to monitor your daily activity and make sure you are getting enough exercise. By setting a daily step goal, you can easily track your progress and see how close you are to reach your target. The device also has the ability to track other forms of exercise, such as running or cycling, and can provide detailed information about your workout, including distance, duration and calories burned. The Fitbit Inspire 3 is also able to track sleep patterns. The device can monitor your movements during the night and provide detailed information about your sleep, including how long you slept, the quality of your sleep and even your sleep stages (light, deep, REM). This information can be incredibly valuable for people who are trying to improve their sleep habits or for those who have trouble sleeping.
The Fitbit Inspire 3 also has the ability to track your heart rate, which can provide valuable information about your overall health. By monitoring your heart rate, you can see how your body responds to different activities and make adjustments to your exercise routine as needed. Additionally, the device can also track your resting heart rate, which can be an indicator of your overall fitness level. Another benefit of the Fitbit Inspire 3 is that it can be synced with a variety of apps and websites, allowing you to track your progress over time and share your data with others. This can be a great way to stay motivated and on track with your fitness goals, as you can see your progress and make adjustments as needed. The Fitbit Inspire 3 can provide valuable information about your daily activity level, sleep patterns, heart rate and more. If you are looking for an easy and convenient way to monitor your fitness and health, a Fitbit is definitely worth considering. If you're unsure which fitness tracker is right for you and your goals, head to our Learn Center and take a look at our fitness tracker buying guide. You can also stop in the store or call 800-860-3577 to speak with one of our Abt team members.
Key Features
- Up To 10 Day Battery
Get more than a week of battery life for more go, more flow, more whoa. Varies with use & other factors. - Irregular Heart Rhythm Notifications
Check for signs of an irregular heart rhythm that may be atrial fibrillation (AFib) and share the results with your doctor.5 - Reminders To Move
Feel like you've been sitting too long? Fitbit's got you-buzzing your wrist so you can take yourself for a walk. - Call, Text & App Notifications
To see what's up, just glance down. When your phone's in your pocket, you can be more present. Works when phone is nearby. - Menstural Health Tracking
Log periods, record symptoms, estimate ovulation & find patterns in your cycle using Inspire 3 and the Fitbit app.3 - SmartWake
A vibrating alarm wakes you during the optimal sleep stage so you feel refreshed and on your game. - Fitbit App
Your exercise, sleep, food logging, Health Metrics, video workouts & meditation. It all live in the app.2 - Accessories & Clock Faces
Keep your look fresh with bands and clock faces. You can even clip Inspire 3 to your shirt, pocket or bra. Acessories sold separately.
Features
Fitness
- Daily Readiness Score
Find out if your body's ready to work out or needs time to recover. Available with Premium. - 24/7 Heart Rate
The heart of it all—heart rate powers important data like calorie burn, sleep stages, resting heart rate & more. - 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. - Cardio Fitness Score
Estimate your fitness level using your VO2 Max (how well your body uses oxygen during exercise). - Connected GPS
Connect to your phone's GPS to see pace and distance during jogs, hikes or bike rides. - Exercise Modes
Track your favorite exercises like runs, bike rides, weights, yoga & more and get live stats on your wrist. - Automatic Exercise Tracking
Auto-detects when you're exercising and records your stats in the app. - Steps, Distance & Calories
Displays stats on wrist and in the Fitbit app. - Swimproof
Water resistant to 50m for the pool, shower & more.
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. Not available in all markets. Not intended to diagnose or treat any medical condition or for any other medical purpose. Intended to help you manage your well-being and keep track of your information. Requires more frequent charging. - Skin Temperature Variation
Identifies changes in skin temperature, which can be related to activity, illness, menstrual cycle & more. Only available in the Fitbit app and only displays variation. Not available in all markets. Not intended for medical purposes. Significant changes in ambient temperature may negatively impact skin temperature tracking. - 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. Only available in select countries. Not intended for medical purposes or to diagnose or treat any medical condition. This feature is only intended to provide information to assist you with managing your well-being. - Breathing Rate
Small variations in your breathing rate could be a sign of changes in your well-being. Only available in select countries. Not intended for medical purposes or to diagnose or treat any medical condition. This feature is only intended to provide information to assist you with managing your well-being. - 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. Available in select countries. Not a replacement for medical advice and not intended to diagnose or treat any medical condition. Intended to help you monitor and keep track of your information. Talk to your healthcare provider for more guidance. - Resting Heart Rate
An important indicator of your heart health & fitness. In general, active people have a lower RHR. - High & Low Heart Rate Notification
If resting heart rate is above or below your usual range, you get notified in the Fitbit app. - Irregular Heart Rhythm 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. Only available in select countries and with select Fitbit products; not intended for use by people under 22 years old or with known atrial fibrillation. See here for additional details. - Menstural Health Tracking
Log periods, record symptoms, find patterns in your cycle & estimate your ovulation window. 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.
Stress & Sleep
- Stress Management Score
See how well your body's handling stress each day. Detailed score breakdown available with Premium. - Mindfulness Sessions
Access tracks for meditation, yoga, relaxation, sleep & more. Most sessions require a Premium membership. - Reflections
Log your mood and get in tune with your emotional stress. - 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 Score
Learn about the quality of your previous night's sleep with a personalized Sleep Score. - Sleep Profile
Get matched with a sleep animal and see a personalized analysis of your sleep every month. Requires Fitbit Premium membership. Not intended for medical purposes. Consult your healthcare professional for questions about your health. - Smart Wake Alarm
Vibrating alarm wakes you during the optimal sleep stage so you feel refreshed.
Smarts & More
- Color Touchscreen
A bright color display for sharp stats all day. - Up To 10 Day Battery
Long battery life means less charging, more living. Battery life varies with use & other factors. - Call, Text & App Notifications
See calls, texts & smartphone app notifications on your wrist when your phone is nearby. - 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. - Clock Faces & Accessories
Give your Fitbit a stylish new look with dozens of clock faces and accessory bands to choose from. - Fitbit Premium Membership
Your Fitbit includes a Premium membership for advanced insights, hundreds of workouts & mindfulness sessions, Daily Readiness Score, Sleep Profile & more. New and returning Premium members only. Must activate membership within 60 days of device activation (requires valid payment method). Membership cannot be gifted. Cancel before end of membership to avoid recurring fees. Content and features may change. T&C apply.
Footnotes:
- † New and returning Premium members only. Must activate membership within 60 days of device activation (requires valid payment method). This membership cannot be gifted. Cancel before membership ends to avoid recurring fees. Content and features may change.
- 2 Health Metrics only available in select countries. Not intended for medical purposes or to diagnose or treat any medical condition. This feature is only intended to provide information to assist you with managing your well-being.
- 3 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.
- 4 Offer ends January 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. T&C apply.
- 5 Irregular heart rhythm notifications are only available in select countries and with select Fitbit products; not intended for use by people under 22 years old or with other known arrhythmias.
General
Approximate Dimensions
Warranty Information
Approximate Weight
Frequently Asked Questions
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The device offers an estimated battery life of up to 10 days on a full charge, allowing you to spend more time tracking and less time charging. It requires approximately 2 hours to fully recharge, so you can quickly get back to using it.
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It tracks a comprehensive range of health metrics including continuous 24/7 heart rate monitoring, calorie burn, steps taken, distance traveled, sleep stages and quality, SpO2 blood oxygen levels, skin temperature variation, heart rate variability, breathing rate, and menstrual health. It also measures cardio fitness level through a Cardio Fitness Score.
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Yes, the device is swimproof and water resistant up to 50 meters, making it suitable for pool swimming, showering, and exposure to water during daily activities without worry.
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The device features Bluetooth connectivity and is app compatible, allowing seamless syncing with your smartphone for tracking, notifications like calls and texts, and integration with various fitness and health apps for detailed analysis and sharing of your data.
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Yes, it offers a Stress Management Score to help you understand how your body handles stress daily, guided breathing sessions, mood reflections, and access to mindfulness sessions through the companion app, enhancing your overall well-being.