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Fitbit - Charge 5 Advanced Fitness & Health Tracker - Graphite

Model: FB421BKBK
SKU: 6476116
This item is no longer available in new condition. See similar items below
  • Key Specs
    • Screen Size: 26 millimeters (Size of the screen, measured diagonally from corner to corner.)
    • Touch Screen: true (Touch-screen devices make navigating more intuitive. Using a touch-screen display, you can do things such as tap to select, hold and drag to move items, swipe to scroll, and pinch to zoom.)
    • Operating System Compatibility: Android, Apple iOS
    • Global Positioning: GPS, GLONASS (A system of satellites which enables a mobile receiver to determine its precise location based on signals received from satellites such as the US Global Positioning System (GPS), the Russian Global Navigation Satellite System (GLONASS), the European Global Navigation Satellite System (Galileo), or the Japanese Quasi-Zenith Satellite System (QZSS).)
    • Metrics Measured: Activity vs. inactivity, Blood oxygen, Calories burned, Distance traveled, Duration of exercise, Electrocardiography (ECG), Hours slept, Pace, Route, Duration of sleep stages, Running/Walking speed, Steps taken
    • Protective Qualities: Water resistant, Dust resistant
    • Maximum Depth of Water Resistance: 164 feet (Measurement of the maximum depth of water in which the product is able to resist some degree of water penetration.)
    • Band Material: Silicone
  • General
    • Product Name: Charge 5 Advanced Fitness & Health Tracker
    • Brand: Fitbit
    • Product Type: Activity tracker
    • Form Factor: Wristband (The size, arrangement, and physical configuration of the product.)
    • Model Family: Fitbit Charge 5
    • Model Number: FB421BKBK
    • Year of Release: 2021
    • Color: Graphite
  • Design
    • Case Shape: Rectangular
    • Band Color: Black
  • Display
    • Display Screen: true
    • Screen Size: 26 millimeters (Size of the screen, measured diagonally from corner to corner.)
    • Touch Screen: true (Touch-screen devices make navigating more intuitive. Using a touch-screen display, you can do things such as tap to select, hold and drag to move items, swipe to scroll, and pinch to zoom.)
    • Display Type: AMOLED
    • Color Display: true
    • Clock Display: true
    • Backlit Display: true (Integrated lights allow for visibility of the display in low-light conditions.)
    • Adjustable Brightness: true
    • Customizable Watch Faces: true
    • Screen Material: Corning® Gorilla® Glass 3
  • Compatibility
    • Operating System Compatibility: Android, Apple iOS
  • Connectivity
    • Wireless Connectivity: Bluetooth (The manner in which a device sends data to another device over a short distance without the use of wires or cables.)
  • Features
    • GPS Enabled: true
    • Global Positioning: GPS, GLONASS (A system of satellites which enables a mobile receiver to determine its precise location based on signals received from satellites such as the US Global Positioning System (GPS), the Russian Global Navigation Satellite System (GLONASS), the European Global Navigation Satellite System (Galileo), or the Japanese Quasi-Zenith Satellite System (QZSS).)
    • Mobile Notifications: true
    • Alert Type: Vibration, Visual
    • Mobile Payment Service Supported: Fitbit Pay
    • Silent Alarm: true
  • Activity
    • Metrics Measured: Activity vs. inactivity, Blood oxygen, Calories burned, Distance traveled, Duration of exercise, Electrocardiography (ECG), Hours slept, Pace, Route, Duration of sleep stages, Running/Walking speed, Steps taken
    • Multi-Sport Tracking: true
    • Sensors: Accelerometer, Ambient light sensor, Electrical heart rate (ECG) sensor, Optical heart rate (PPG) sensor, Pulse oximeter (Sp02) sensor, Temperature sensor (Detects stimuli such as heat, light, sound, motion, or pressure and responds accordingly by operating a control or initiating a function of the device.)
  • Performance
    • Protective Qualities: Water resistant, Dust resistant
    • Maximum Depth of Water Resistance: 164 feet (Measurement of the maximum depth of water in which the product is able to resist some degree of water penetration.)
    • Minimum Operating Temperature: 14 degrees fahrenheit (The lowest recommended ambient (surrounding) temperature in which the product can ideally operate stated by the manufacturer. Generally long-term exposure of the product to temperatures less than the minimum can result in ineffective operation.)
    • Maximum Operating Temperature: 113 degrees fahrenheit (The highest recommended ambient (surrounding) temperature in which the product can ideally operate stated by the manufacturer. Generally long-term exposure of the product to temperatures more than the maximum can result in ineffective operation.)
  • Dimensions
    • Minimum Wrist Size: 139.7 millimeters
    • Maximum Wrist Size: 220.98 millimeters
    • Band Size: Adjustable
  • Power
    • Rechargeable: true
    • Charging Time: 120 minutes
    • Charging Interface(s): Other (The connection for transmitting power to charge the device.)
  • Material
    • Band Material: Silicone
    • Case Material: Stainless steel
  • Other
    • UPC: 810038855868

Do what's best for your body. Fitbit Charge 5 + Premium connects the dots between your activity, sleep and stress so you can make the best decisions for your body, mind and health. It all starts with your 6-month Premium membership1 and Daily Readiness2, a score based on activity, sleep and heart rate variability (HRV) that helps you optimize your workout routine. Your score comes with personalized activity recommendations: low means go easy and recover--light yoga, deep breathing--while a high score gives you the green light to go all out. Enhance your recovery routine with advanced stress-management tools like the on-wrist EDA sensor. Stay ahead of heart health with atrial fibrillation (AFib) heart rhythm assessments using the on-wrist ECG app.3 And you'll always have motivation to reach new goals with hundreds of guided workouts, a gallery of refreshing mindfulness sessions plus the fitness features you know and love like Active Zone Minutes and built-in GPS. Fitbit is part of the Google family.

  • Daily Readiness Score: Optimize your workout routine with a score that reveals if you're ready to exercise or should focus on recovery. You'll get a personalized activity goal for the day, plus recommended workouts or recovery sessions based on your score.²
  • Stress Management Score: Get a daily score showing your body's physical response to stress. You can see how your exercise routine, mindfulness practice and sleep help to manage your stress levels.
  • EDA Sensor: Take steps to improve your stress levels with an on-wrist EDA sensor mindfulness session. The app detects electrodermal activity--tiny changes in your skin's sweat level which may indicate your body's response to stress.
  • Fitbit ECG App & Irregular Heart Rhythm Notifications: There are two ways to uncover AFib, right at your fingertips. With the ECG app, you can take an assessment on demand. Plus, use irregular heart rhythm notifications to look for signs of AFib while you're still or sleeping.³
  • High & Low Heart Rate Notifications: Your heart rate is a key factor of health, so stay informed when Charge 5 detects that your heart rate is above or below your threshold.
  • 6=Month Premium Membership: Charge 5 unlocksa 6-month membership complete with personalized insights, advanced analytics, guided programs, mindfulness & sleep tools, workouts and more.¹
  • Built-in GPS: See your real-time pace & distance without your phone using built-in GPS during outdoor activity, then see a map of your workout route in the Fitbit app.⁴
  • Vibrant Color Display: Your stats come to life on a new color touchscreen that's two times brighter than Charge 4 in daylight and protected by Corning® Gorilla® Glass 3.
  • Up to 7-Day Battery Life: With a long battery life, Charge 5 tracks all your moves for up to 7 days without having to stop for a charge.⁵
  • 24/7 Heart Rate Tracking with PurePulse®: Track calorie burn and optimize workouts with PurePulse continuous heart rate tracking, then see you resting heart rate trends and cardio fitness level (VO2 Max) in the Fitbit app.
  • 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.
  • Sleep Score & Sleep Stages: Get a better understanding of your sleep quality with a daily Sleep Score and graphs of the your time in light, deep, and REM sleep--then see how you can improve your sleep and wake up feeling energized.
  • Oxygen Saturation (SpO2) Monitoring: Track SpO2--the level of oxygen in your blood--to help you learn when there may be an indication of important changes in your overall wellness.⁶
  • Skin Temperature Tracking: Charge 5 tracks your skin temperature variation each night to spot changes from your baseline. Changes could be related to environmental or wellness factors.⁷
  • 20 Exercise Modes: Set personal goals for runs, rides, strength training and more, then get real-time stats to help you keep the pace or maintain your target heart rate zone.
  • Sleek Design: Charge 5 is packed with new technology, yet 10% slimmer than Charge 4. It features a stainless steel build and a polished finish while sitting flat on the wrist for a modern, minimalist look.
Whats Included
  • Fitbit Charge 5
  • Infinity band (small & large)
  • Charging cable

Q: Do you have to pay for a membership for this fitbit to work? I saw the comment in the one person's review about a $80 membership fee.

A: Yes, for some of the features like ECG, you need the premium service. You can still use all the basic functions (step counting, sleep, etc.) without, but even then it might be less user friendly. Once I realized about the ECG locking, I returned before seeing what else premium unlocks.

Q: Is it a requirement to have the paid subscription? That is something I do not want. The fitbit app I used for the Charge 3 is all I want.

A: No you do NOT have to have a paid subscription for the normal functions. I’ve had Fitbit for 10 years and have never upgraded to more gadgets .

Q: Can you swim with this Fitbit ?

A: Water resistant to 50 meters.

Q: Does it have a stopwatch capability?

A: Yes it does but beware of this new Fitbit Charge because the battery life is terrible. I have to charge it daily and I’ve gone through all the trouble shooting with no luck at fixing it.

Q: How visible is the display in sunshine and daylight? I had a couple Charge 3 devices (4 to be exact). They were terrible in bright light ... I'm worried that this problem still exists. They also died early

A: This has a totally different display than the previous Charge models. It’s bright, colorful and I have absolutely no problems seeing it in the sunlight.

Q: I would love one of these! Do I have to have the membership or can I buy one without it? Thanks

A: You can buy without membership and get access to basic health tracking data, such as steps, heart rate, active minutes. The membership provides access to additional health data and statistics.

Q: Does this band charge wirelessly?

A: No, the Charge 5 does not have wireless charging. It comes with a charging cable. Note that the charging cable is different than previous models.

Q: Does this Fitbit show the actual ecg tracing that can be saved & sent to a physician?

A: No not yet. This feature is not available right now. It is supposed to be avaliable in a later update.