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Fitbit Charge 4 vs Inspire HR: Which Is the Better Tracker?

Another day, another comparison article between the newly-released Fitbit Charge 4 and one of the market’s most capable activity trackers. Today, the aforementioned beast of a fitness tracker is looking to square off against a member of the home team, the popular Fitbit Inspire HR. 

The Fitbit Inspire HR is known for its low-profile design, reliable fitness tracking capabilities, and highly-affordable price tag. Are these attributes enough for Fitbit’s Inspire HR to take on the new member of the Fitbit family? This Fitbit Charge 4 vs. Inspire HR article will provide the answer. 

Fitbit Charge 4 vs Inspire HR – Short Answer:

While it features sleeker aesthetics, the Fitbit Inspire HR just doesn’t stand a chance against the newly-released Fitbit Charge 4. From its accurate activity tracking and integrated functions to its excellent battery life, the Fitbit Charge 4 simply lays waste to the Fitbit Inspire HR. 

Fitbit Charge 4 vs Inspire HR – Specs Comparison:

ProductWeightDisplay SizeDisplay TypeResolutionBattery Life
Charge 430g43x29mmOLED100 x 1607 Days
Inspire HR20g37x13mmOLED128 x 725 Days

Fitbit Charge 4 vs Inspire HR – Full Comparison:

In this section of the article, we’re going to dissect the offerings of both units by comparing them in the light of their design, display, tracking capabilities, battery life, and more. Let’s jump into it. 

1. Style and Design

From afar, the Fitbit Charge 4 doesn’t look very different from its predecessor, but up close, you can begin to see that it’s quite longer than Charge 3, as it measures in at 29 x 43 x 13mm. Thanks to its tapered design, the Fitbit Charge 4 doesn’t look bulky or overbearing in any way.

The Fitbit Inspire HR, on the other hand, was set to replace the timeworn Fitbit Zip and Alta/Alta HR. The Inspire HR is pretty much a slimmer-down version of the Fitbit Charge 3, also making it an even more slimmed-down, lightweight version of the Fitbit Charge 4 in terms of aesthetics. 

Both trackers offer immense visual appeal, but we feel like the Charge 4 is more masculine in its design, whereas the Inspire HR’s trimmed-down design makes it an ideal pick for women. We’re also quite fond of its curved construction, as it provides a great deal of comfort. 

We don’t want to make the Fitbit Charge 4 seem like a bulky fitness tracker because it’s not. It’s just that it’s equipped with a larger screen than the Fitbit Inspire HR, which may not make it very appealing to minimalists. Nevertheless, the two units are excellently compact and lightweight. 

The Fitbit Inspire HR features a plastic casing that helps grant it its lightweight, however, when it stands face to face against the Charge’s rugged aluminium casing, it seems to lack in sturdiness and longevity. Both units aren’t that far apart from each other in terms of weight, anyway. 

The two units come with two silicone straps that accommodate a broad range of wrist sizes, but with Charge 4, you get many more color options than you would with the Inspire HR. The straps are interchangeable for both, so you can always try a different look if you’re sick of the old one. 

Lastly, but devices are water-resistant up to 50 meters, which allows you to utilize them for swim tracking. However, it’s highly advised not to utilize any of these two units, or any Fitbit device for that matter, in a hot tub or a sauna. In our opinion, the Fitbit Charge 4 wins for ruggedness. 

Winner: Fitbit Charge 4

2. Display Screen

Both the Fitbit Charge 4 and Inspire HR boast a backlit grayscale OLED touchscreen panel, but at 43 x 29mm, the Charge’s display is significantly larger than the Inspire HR’s 37 x 13mm display, which makes it easier for users to tap and swap their way around the interface with ease. 

As we were looking through customer reviews, we’ve noticed a lot of complaints about the Fitbit Inspire HR’s small display and how it limits the number of metrics that can be displayed. In order for you to see your stats, you’ll have to constantly tap the panel, which can be a total throw-off. 

The Fitbit Charge 4, on the other hand, is capable of displaying multiple metrics at once, so you won’t need to tap or constantly swipe in order to keep tabs on your performance. Both units are quite bright and detailed, so you won’t have a problem reading them even in broad daylight. 

If you’re looking for a slim-fitting fitness tracker, you’ll have to settle for the Inspire HR’s minimal display. If you have eyesight problems and you’re in need of a larger display and fonts, the Fitbit Charge 4 is the way to go. In our opinion, the newly-released Fitbit wins for convenience. 

Winner: Fitbit Charge 4

3. Device Navigation

There are some differences between Charge 4 and Inspire HR when it comes to navigation, but not the types of differences that would set one device apart from the other. For instance, swiping down would direct to notifications on the Charge and to the apps list on the Inspire HR. 

Both trackers have a single side button that you can employ to navigate more fluidly. The button on Inspire HR allows you to wake the device, move out of menus, pause or stop exercises, and more. The Charge’s side button allows you to jump to settings, enable Fitbit pay, and more. 

Winner: Stalemate

4. Featured Sensors

Compared to the Fitbit Charge 4, the Fitbit Inspire HR seems to be suffering from a serious lack of sensors. It does have the sensors required to pull off basic activity tracking, but it’s just no on par with the Fitbit Charge 4. Below is a table that indicates the sensors present in both units. 

Sensor Fitbit Charge 4Fitbit Inspire HR
3-Axis AccelerometerYesYes
Optical Heart Rate MonitorYesYes
Vibration MotorYesYes
Relative SpO2 YesNo
Built-In NFCYesNo
Built-In GPSYesNo

If you’re serious about your fitness goals, we strongly recommend going with the Fitbit Charge 4 as it will offer you much more convenience than the Inspire HR. However, if you’re only a casual fitness enthusiast, the Fitbit Inspire HR will do a good job of tracking basic metrics for you. 

Winner: Fitbit Charge 4

5. Apps and Notifications

Both the Fitbit Charge 4 and Inspire HR aren’t as versed as the Fitbit’s Versa line when it comes to apps. The two trackers come with a bunch of pre-loaded apps that you can’t remove or add to like Exercise, Timers, Relax, Alarms, Weather, and settings. They pretty much cover the basics. 

However, the Fitbit Charge 4 features a couple of extra features that aren’t present in the Inspire HR, which are Agenda and Spotify. The former app is self-explanatory, the latter app allows you to control the music you play. But the caveat is that you must have a Spotify Premium account.

As far as notifications, both Fitbits will alarm you whenever your phone receives a notification or call. With the Fitbit Charge 4, you can swipe down from the top of the screen in order to view an archive of old notifications that span 7 days. This feature is lacking in the Inspire HR.

Another feature that the Fitbit Charge 4 offers Android users is the ability to create custom smart replies for text messages, allowing you to interact with your notifications. The Inspire HR doesn’t allow you to interact with notifications whatsoever, and you can’t retrieve them if they disappear. 

Winner: Fitbit Charge 4

6. Health and Fitness

Fitbit is a highly reputable brand when it comes to health and fitness tracking, so it doesn’t come as a surprise that all of its fitness trackers are highly capable. Both the Charge 4 and Inspire HR offer remarkable fitness tracking capabilities, with a few subtle differences between the two. 

Function Fitbit Charge 4Fitbit Inspire HR
Active Zone MinutesYesNo
Workout Intensity MapYesNo
24/7 Heart Rate MonitoringYesYes
Cardio Fitness LevelYesYes
Pace and DistanceYesYes
Stairs ClimbedYesNo
Sleep StagesYesYes
Guided BreathingYesYes
Goal-Based Exercise ModesYesYes
Auto Exercise RecognitionYesYes
Swim TrackingYesYes
All-Day Calorie BurnYesYes
Female Health TrackingYesNo

As you can see from the table above, both units are capable of tracking a variety of metrics. But it’s also pretty clear that the Fitbit Charge 4 is the superior device, thanks to its new Active Zone Minutes and Workout Intensity Map features, as well as female health-tracking capabilities. 

The Active Zone Minute function allows you to achieve personalized workout results by defining heart rate zones by using information gathered by metrics such as peak heart rate, fat burn, and cardio. The Fitbit Charge 4 will then alert you when you reach the desired heart rate zone. 

Winner: Fitbit Charge 4

7. Battery Life

The Fitbit Charge 4 has an impressive battery lifespan of up to 7 days, which is long enough for you to lose the charging cable. However, when you activate its GPS functionality, you’ll average about 5 hours of use, which isn’t that much compared to other units, but it’s quite satisfactory. 

The Inspire HR also offers a solid battery life of up to 5 days, depending on how intensively you use it. For instance, if you’re doing one-hour workouts every day with connected GPS and using the heart rate and sleep tracking functions, expect the battery life to be less than 5 days. 

Winner: Fitbit Charge 4

8. Pricing

The standard version of the Fitbit Charge 4 will start a value tag of $149.95, whereas the special edition version will start at $169.95. The two versions are similar as far as features, but the main difference is that the special edition version features a granite reflective/woven band. 

The Fitbit Inspire HR, on the other hand, is available for order at a price tag of $99, so it’s a very affordable fitness tracker. Both units are reasonably priced considering the amount of value they have to offer. Fitbit offers a 1-year warranty on both units and a 45-day money-back guarantee.

Winner: Stalemate

Fitbit Charge 4 vs Inspire HR – Pros and Cons:

1. Fitbit Charge 4 


  • Larger display screen
  • Female health tracking
  • Built-in GPS and NFC
  • Actives Zone Minutes
  • Offers swappable bands 


  • It lacks a color display
  • Not very original looking 

2. Fitbit Inspire HR


  • A highly affordable tracker
  • Various exercise modes
  • Excellent battery lifespan 
  • Offers swappable bands 
  • Lightweight construction


  • Lacks built-in GPS
  • Doesn’t feature NFC

Final Thoughts

The Fitbit Charge 4 is arguably the most accomplished fitness tracker on the market today, so it doesn’t come as a surprise that it would be the better pick over the Inspire HR. Nonetheless, the Fitbit Inspire HR is still a capable tracker that we’d recommend as a budget-friendly alternative.

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