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Fitbit Charge 2 vs Charge 3 (2021): Is The Upgrade Worth It?

One of the newer Fitbit models is the Charge 3, the predecessor to the very well-received Charge 2. The Charge 2 has held its ground as one of the best fitness trackers on the market, but the Charge 3 comes fully decked out with new features that just might knock the Charge 2 out of the top spot. Find out if the upgrade is worth it in our detailed comparison below!

Fitbit Charge 2 vs Charge 3 Comparison Chart

ModelFitbit Charge 2Fitbit Charge 3
Fitbit Charge 2 Heart Rate + Fitness Wristband, Black, Large (US Version), 1 Count Fitbit Charge 3 Fitness Activity Tracker, Rose Gold/Blue Grey, One Size (S and L Bands Included) 
PriceCheck Price Check Price 

Connected GPSYesYes
Swim TrackingNoYes
Female Health TrackerNoYes
Sleep TrackerYesYes
Heart Rate MonitorYesYes
Battery Life5 days7 days


At a glance, the Charge 2 and Charge 3 seem very similar, but there are some key differences to take into consideration.

Fitbit Charge 2 vs Charge 3 Design
The Charge 2 and Charge 3 are aesthetically similar, but there are some new changes to the Charge 3.

The Charge 3 maintains pretty much the same aesthetic as the Charge 2, save for a few differences. For example, the Charge 3 is noticeably slimmer and thinner than the Charge 2. This automatically translates to a lighter and more comfortable fit.

On top of that, the Charge 3 uses a scratch-proof Gorilla Glass 3 screen and boasts a sleek, aluminum body. The Charge 3 also has a larger touchscreen display which allows more room to navigate the Fitbit user interface. It also has a higher resolution screen, albeit still in black and white.

User Interface

The Charge 3 boasts a bigger and better screen with an inductive home button.

Fitbit Charge 2 vs Charge 3 User Interface
The Charge 3 boasts a bigger screen with a higher resolution.

The screen is one of the best upgrades on the Charge 3. While it is still black and white like the Charge 2, the Charge 3’s larger, redefined touchscreen ensures a better user experience overall. It also features an inductive button, but it is essentially a home button.

The Charge 3 also allows you to set goals which is a feature only available via the app on the previous Fitbit models. You can also interact with the notifications, as well as incoming calls and texts. With a simple swipe, you’re able to see key stats such as steps, distance, and more.


The Charge 3 has a number of new and more attractive features that may be deal breakers for the Charge 2.

Fitbit Charge 2 vs Charge 3 Features
The Charge 3 offers up some new features that makes the Charge 2 pale in comparison.

The Charge 2 is undeniably a well-rounded device: it has sleep tracking, workout modes for automatic exercise detection, step tracking, and distance tracking. It’s also able to track calories burned.

The Charge 3 builds on all these features, but with a significantly more accurate heart rate sensor and an equally accurate SpO2 sensor which measures the amount of oxygen in the blood. The sleep tracking feature on the Charge 3 has also been enhanced to provide more insightful data.

While this is all well and good, our favorite new feature on the Charge 3 is undoubtedly its heightened water resistance. Unlike the Charge 2 which is only sweat- and splash-proof, the Charge 3 takes it a step further by being swimproof up to 50 meters underwater with a swim tracking feature to boot.  Additionally, the Charge 3 also has a Female Health Tracking feature which allows users to track parts of their menstrual cycle like ovulation.

Both models, however, lack a dedicated GPS feature and still bank on your phone’s GPS via the Connected GPS feature.

Battery Life

The Charge 3 has a more prolonged battery life compared to the Charge 2.

On paper, the Charge 2 is estimated to last 5 days, but our testing revealed it was capable of lasting up to 6 days. The Charge 3, on the other hand, is estimated to last 7 days on each full charge. Of course, these estimates fluctuate depending on your usage.


For only a slightly higher price, the Charge 3 gives users more bang for their buck.

Sure, you get the Charge 2 for a discounted price now that the Charge 3 is out, but if you’re in the market for a fitness tracker, then the Charge 3 definitely gives you more bang for your buck. The new features, improved water resistance, and better activity tracking overall are definitely worth the small difference in price.

Last update on 2020-12-23 / Affiliate links / Images from Amazon Product Advertising API

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Andy Mathews

Lead Editor at Compare Before Buying. Product researcher and tech enthusiast passionate about consumer products, comparison charts and surfing.