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The Charge 4 is the latest fitness tracker from Fitbit, it succeeds the Charge 3 which is very popular among fitness enthusiasts. There’s isn’t much additions with the release of the Charge 4, but it comes with a peck of new features that include inbuilt GPS, NFC, and the ability to control music on Spotify.

Fitbit Charge 4: What’s New?

The new features that come with the Charge 4 are;

  1. Inbuilt GPS: Unlike Charge 3, Charge 4 comes with an inbuilt GPS that allows you to track real-time pace and location without carrying your phone along.
  2. NFC: The Charge 4 now has NFC in all models, unlike the Charge 3 where it was only available in the Special Edition. This will allow you to make payments directly from the watch.
  3. Sleep Mode: The Charge 4 features sleep mode that allows you to mute notifications on your smartphone.
  4. Control and Play Music on Spotify: You can use the Charge 4 to control and play music from streaming services like Spotify.
  5. Do Not Disturb Mode: The Charge allows you to activate the do not disturb mode that mutes notifications for calls, SMS, and otherwise.
  6. Active Zone Minutes: Active zone minutes is the new feature that comes with the Charge 4 and might come to other models via updates. This feature allows you to set the target heart rate, which the Charge 4 will alert you when the target is reached. A great way to manage your training intensity.

fitbit charge 4 review

  • Lightweight Design
  • Just like Charge 3, Charge 4 is also very lightweight. It has a case made of resin and the straps made of elastomer. The display is still the same monochrome LCD display, not so bright, but easy to read even under sunlight. The Charge 4 comes in two models; the Regular edition and Special Edition. The difference between the two models is that the Special Edition comes with additional woven polyester straps.

    The straps can be changed, just in case you don’t like the one that comes with it.

  • 5ATM Waterproof Rating
  • The Charge 4 is rated 5ATM which means it waterproof up to 50 meters, this makes it swim-proof and can be worn to the pool or otherwise.

  • A Comprehensive Fitness Tracker
  • The Charge 4 ships with a handful of inbuilt sensors that include GPS, heart rate monitor, and accelerometer that enables it to track your active life comprehensively. It’ll track your sleep, steps, floors climbed, locations, real-time pace, and many other related stats. It also features preloaded sport modes that allow you choose your preferred workout mode.

  • Keeps You Connected To All That Matters to You
  • The Charge 4 is designed to notify you when you receive a notification on your phone. This will allow you to stay connected to all that matters to you. And with Fitbit Pay available on all models, you can make payment directly from the device.

  • About 7 Days Long Battery Life

With mixed usage, the Charge 4 can last up to 7 days. This can be lower or higher but depends on actual usage.

Features of Charge 4

The list below list the features of the Charge 4.

  1. Inbuilt GPS
  2. Inbuilt GPS lets you see your real-time pace and distance without a phone, then get a map of your route in the Fitbit app.

  3. Active Zone Minutes
  4. Feel a buzz when you reach your target heart rate zones during exercise and celebrate when you earn extra minutes outside of workouts.

  5. Personalised Reminders
  6. Stay on track toward your goals with personalized reminders that remind you to stay active, get hydrated, stick to a sleep schedule, and more.

  7. Automatic Exercise Recognition
  8. Automatically record select exercises like running, biking, and more & see detailed workout information in the Fitbit app.

  9. 20+ Preloaded Sport Modes
  10. Choose from 20+ exercise modes like run, bike, swim, yoga, and more, set a goal, and get real-time stats during your workouts.

  11. Personalised Insights
  12. Get insights based on your personal stats and specific guidance on how to improve.

  13. Swimproof
  14. Water-resistant up to 50M, so you can wear your tracker or smartwatch in the shower, pool, and beyond.

  15. Sedentary Reminders
  16. See how long you’ve been active throughout the day and get reminders to fit in a few extra steps when you’ve been sitting a bit too long.

  17. Workout Intensity Map
  18. After outdoor exercise, check your workout intensity map in the Fitbit app to see your heart rate zones throughout your route.

  19. Heart Rate Zones
  20. Use your personalized fat burn, cardio, and peak heart rate zones to optimize your effort during workouts.

  21. Advanced Sleep Tools
  22. Unlock a Sleep Score breakdown and personalized tools to help you sleep better.

  23. Guided Programs
  24. Follow customized, step-by-step programs that help you build healthier habits in key areas.

  25. Health and Fitness Tracking
  26. Track activity, weight, sleep, and nutrition and see your progress in the app.

  27. Cardio Fitness Score
  28. Get a better understanding of your fitness level and see how you can improve over time with a personalized Cardio Fitness Score.

  29. Comprehensive Sleep Tracking for Light, Deep and REM Stages
  30. See your time spent in light, deep, and REM sleep stages and get sleep insights to help you improve.

  31. Female Health Tracking
  32. Know your body on a deeper level using your tracker or smartwatch with the Fitbit app to follow your cycle, record symptoms, and more.

  33. Guilded Breathing Sessions Help You Manage Stress
  34. Find moments of calm throughout your day with personalized breathing sessions based on your heart rate.

  35. All Day Heart Rate Tracking
  36. Use 24/7 heart rate to better track calorie burn, see your resting heart rate trends, and get real-time guidance to optimize your workouts.

  37. All Day Activity Tracking
  38. Track steps, distance, calories burned, active minutes, hourly activity, and stationary time.

  39. Sleep Score
  40. Based on your heart rate, time asleep, and restlessness, this personalized score helps you better understand your sleep quality each night.

  41. Sleep Tracking
  42. Understand your rest with automatic sleep tracking and silent alarms on your wrist & bedtime reminders and helpful tips in the app.

  43. Resting Heart Rate
  44. Wear your tracker or smartwatch all day and night to record your resting heart rate and track heart rate over time.

  45. All Day Calorie Burn
  46. Better understand the total number of calories you burn—all day and during workouts—to manage your weight and stay on track toward your goals.

  47. Syncs Wirelessly With Compatible Devices
  48. Automatically sync to most popular iOS and Android devices to show your stats, trends, and progress on your Fitbit dashboard.

  49. Make Payments Directly From Charge 4
  50. Use your credit and debit cards to make secure purchases anywhere that accepts tap-and-pay. See participating banks.

  51. Smartphone Notifications
  52. See call, text, or calendar notifications on screen & get push notifications from smartphone apps. Available when your phone is nearby.

  53. Connect and Control Music on Spotify
  54. Control your music, “like” songs, and browse recent playlists and podcasts all from your wrist. Works with phones nearby; Spotify Premium subscription required. Not available in all countries.

  55. App Dashboard
  56. Set goals, track progress, and get a more complete picture of your health and fitness—all on your dashboard in the Fitbit app.

  57. Sleep Mode
  58. Use the sleep mode to mute smartphone notifications and stop your screen from turning on at night.

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

  61. Up To 7 Days Battery Life
  62. The battery lasts up to 7 days on a full charge. Up to 5 hours with GPS; varies with use and other factors.

  63. On-Wrist Stats

Check your stats on your Fitbit tracker or smartwatch—and get the nudge you need to reach your goals.

Fitbit Charge 4 Pros

  • Lightweight design.
  • Inbuilt GPS.
  • Music control.
  • NFC for Fitbit Pay.
  • Over 5 days long battery life.

Fitbit Charge 4 Cons

  • No ambient light sensor.
  • No always-on display.

Fitbit Charge 4 Specifications

  Fitbit Charge 4 Fitbit Charge 4 Special Edition


Device name Fitbit Charge 4 Fitbit Charge 4 Special Edition
Device type Sport/Fitness smartwatch Sport/Fitness smartwatch
Predecessor Fitbit Charge 3 Fitbit Charge 3
Successor N/A N/A
Date Released March, 2020 March, 2020
Gender Unisex Unisex



Display size 1.57 inch 1.57 inch
Display type OLED (monochrome) OLED (monochrome)
Display resolution __ __
Pixel density -- --
Display always-on No No
Input type Touchscreen Touchscreen


Shape Rectangular/curved Rectangular/curved
Casing material Resin Resin
Strap material Elastomer Elastomer
Woven Polyester
Bezel Material Resin Resin
Weight 27 g 27 g
Color(s) Rosewood
Storm blue/black
Black/ granite
Dimension 35.8 x 22.7 x 12.5 mm 35.8 x 22.7 x 12.5 mm
Strap size 140 - 180 mm (small)
180 - 220 mm (large)
140 - 180 mm (small)
180 - 220 mm (large)
Screen protection Hardened glass Hardened glass
Durability test
Waterproof rating Yes, 5ATM Yes, 5ATM


Time/Date Yes Yes
Alarm Yes Yes
Stopwatch Yes Yes


RAM -- --
Internal storage __ __
Memory card slot __ __


Audio No No
Microphone No No
Loudspeaker No No
Camera No No
Music streaming No No


Bluetooth Bluetooth v4.0 LE Bluetooth v4.0 LE
NFC Yes Yes
Wi-Fi No No
Bluetooth calling No No


Calls alert Yes Yes
SMS alert Yes Yes
Email alert Yes Yes
Reminder Yes Yes


Network Technology No No


Steps Yes Yes
Distance Yes Yes
Calories Yes Yes
Floors climbed Yes Yes
Sleep tracking Yes Yes
Heart rate monitoring Yes Yes
VO2 Max. Yes Yes
Stress Yes Yes
Swim tracking Yes Yes
Menstrual cycle tracking Yes Yes
Blood pressure No No
ECG Tracking No No
Blood oxygen Yes Yes
Preloaded sport modes Yes, 20+ Yes, 20+


Operating system Fitbit OS Fitbit OS
CPU -- --
GPU -- --
Chipset -- --


GPS Yes Yes
Accelerometer Yes Yes
Gyroscope __ __
Heart rate sensor Yes Yes
Barometer Yes Yes
Compass No No
Pulse Ox. Yes Yes
Altimeter __ __
Thermometer No No
Ambient light No No


Interchangeable straps Yes Yes
Custom watch face Yes Yes
Voice Assistant No No
Compatibility Android 7.0+
iOS 12.2+
Check your device compatibility
Android 7.0+
iOS 12.2+
Check your device compatibility
Payment system Fitbit Pay Fitbit Pay
Companion app Fitbit App Fitbit App


Battery type Non-removable lithium polymer Non-removable lithium polymer
Battery capacity _ _
Est. battery life Standby: 10 day+
Mixed usage: 7 days
Continuous GPS Tracking: 5 Hrs
Standby: 10 day+
Mixed usage: 7 days
Continuous GPS Tracking: 5 Hrs
Charging mode Charging Dock Charging Dock
Charging duration About 1-2 hours About 1-2 hours


Fitbit Charge 4 Fitbit Charge 4 Special Edition
Strap (small and large) Strap (small and large)
Woven Strap (small and large)
Charger Charger
Quick start guide Quick start guide


Fitbit Charge 4 is no doubt a fantastic watch, although looks more like a smartband. The design is decent with added fitness tracking features that makes it a more comprehensive fitness tracker than Charge 3. If you already own Charge 3, I don’t think an upgrade is really necessary. Otherwise, if you have to choose between these two, Charge 4 is a better bargain.

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