Today, I’m comparing my two popular fitness trackers: the Fitbit Charge 6 and the Fitbit Versa 4. I'll be going over things like, display, statistics, GPS, step tracking, build quality, heart rate monitoring, and unique features to help you make an informed decision in 2025.
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Here, you can see my Fitbit Versa 4 on the left and the Fitbit Charge 6 on the right, demonstrating the contrast in their display sizes and how they present data.
Initially, the displays on my devices were out of sync. To standardize them, I adjusted the settings.
On the Fitbit Charge 6, I navigated to Settings > Display Settings. While brightness was left on "Normal" and screen wake on "Auto," I changed the Screen Timeout from "Default" to "Long." I also activated the Always On Display for this comparison.
For the Fitbit Versa 4, the process was similar: Settings > Display. I kept brightness on "Normal" and button/motion settings on "Button and Motion." The Screen Timeout was adjusted from 6 seconds to 10 seconds, and the Always On Display was also turned on.
With both devices now set to always-on, we can take a look at the next comparison point.
Looking at stats, a clear difference jumps out. The Fitbit Charge 6 displays smaller font sizes when scrolling through stats. In contrast, my Fitbit Versa 4, equipped with a custom "Big Time Display" clock face (a free download from the clock face app), shows significantly larger and more readable fonts. While this specific display isn't default on the Versa 4 out of the box, it highlights the potential for better readability with customization.
On the main stats page, the Versa 4's display is noticeably larger, making all statistics easier to view compared to the Charge 6.
I attempted to activate the magnification feature on the Charge 6. This requires a triple tap, which was not doing much at first. I had to enable it first via Settings > Magnify Settings. Once activated, the triple-tap feature allows for a larger font size. However, I found it somewhat finicky and not as natural to use as a larger default display.
From my world here, the Versa 4's larger display, especially with the customized clock face, offers a superior viewing experience for daily statistics.
This shot shows both my Fitbit Versa 4 and Charge 6 attempting to connect to GPS for a walk. The Versa 4 is still connecting, while the Charge 6 is starting its connection process.
Next, I tested the GPS connection speed. I performed this test in my basement, a challenging environment for GPS signals. I initiated a "Walk" exercise on both devices.
On the Charge 6, I scrolled to "Exercise," selected "Walk," and then activated GPS, as it was off by default.
The same steps were followed on the Versa 4: scroll to "Exercise," select "Walk," and activate GPS.
Both devices displayed "GPS connecting." The Fitbit Charge 6 connected significantly faster, indicating "GPS connected" while the Versa 4 continued to search for a signal for a much longer period under these conditions.
Here, I’m showing the activity statistics on both my Fitbit Versa 4 and Fitbit Charge 6 screens. You can really see the difference in how much information is clearly visible at a glance.
I conducted a 5-minute walk on a treadmill to compare step counts. Take this with a grain of salt, five minutes is definitely not enough time for an in-depth comparison.
Pre-walk step counts:
Fitbit Charge 6: 2,773 steps
Fitbit Versa 4: 3,700 steps
After a 5-minute walk at 1.7 mph:
Post-walk step counts:
Fitbit Charge 6: 3,156 steps
Fitbit Versa 4: 4,097 steps
Calculated steps during the 5-minute walk:
Fitbit Charge 6: 383 steps
Fitbit Versa 4: 397 steps
There was a slight difference in the recorded step counts, with the Versa 4 registering 14 more steps in this single, quick test.
After a quick first test, I decided to take both watches on a second, much longer walk. On the surface, the step and heart rate counters seemed to keep up, and the displays were readable in the sun. But let's look closer at the actual numbers.
Once I got back, the final numbers told a more complete story. The Fitbit Charge 6 logged 4,775 steps, while the Fitbit Versa 4 came in with 4,846 steps. A difference of 71 steps might seem small at first glance, but over a single walk, it’s worth noting. It raises the question of which device, if either, is truly accurate. This second test gave me more data to work with, but it didn't completely settle the debate on which tracker is more reliable.
This is a closer look at the bands of my Fitbit Versa 4 and Charge 6, showing the interlocking design that keeps the excess band tucked in.
Both the Fitbit Charge 6 and Versa 4 exhibit pretty good build quality for their main bodies. The clock face and housing, including the sensor area, feel solid and well-constructed.
However, my opinion on the bands differs. The snap-in mechanism for both devices feels less secure than ideal. While the bands clip in, I'm not sure about their long-term durability and how firmly they will remain attached over time. Despite this, I have worn the Versa 4 without issues so far.
The bands themselves are comfortable on the skin. They feature an "interlock" design where the excess band tucks underneath, preventing it from flapping. This design is effective and comfortable.
Here, I'm displaying the real-time heart rate readings from my Fitbit Versa 4 and Fitbit Charge 6. You can see how closely their bpm measurements align.
Standing still, I observed the heart rate readings. The Charge 6 displayed around 84 bpm, while the Versa 4 showed approximately 82 bpm. These numbers fluctuated slightly but remained consistent and close to each other, indicating no outrageous discrepancies in this subjective, one-off test.
The Fitbit Charge 6 includes an Electrocardiogram (ECG) feature. To use it, I scrolled to "ECG" on the device, placed my index finger and thumb on the metal sides, and held still for 30 seconds. After data collection and analysis, the device provided a conclusion and additional information. This is a notable extra feature present on the Charge 6.
For my personal walking routine, things have changed. These days, I need my reading glasses to look at tiny words and numbers. That said, the Fitbit Charge 6 display has taken a back seat in my walking life because the stats are just a bit too small for my liking. Don't get me wrong, the Fitbit Charge 6 is still a great fitness tracker; it's just not my cup of tea anymore.
As for the Fitbit Versa 4, its large display works great out and about. The only reason I don't really wear it is because of its uncertain future. So, I had to explore other fitness trackers and smartwatches outside the Fitbit world. But the Fitbit Versa 4 is still a pretty solid smartwatch for my walks; the battery is decent, and, again, the display is large enough to read.
A: I went into the display settings on my Fitbit Charge 6. I set the screen timeout to "Long" and turned on the "Always On Display."
A: I went into the display settings on my Fitbit Versa 4. I set the screen timeout to 10 seconds and also enabled the "Always On Display."
A: No, the ECG feature is exclusive to the Fitbit Charge 6. To use it, I placed my index finger and thumb on the metal sides of the device and waited for the assessment to complete.
A: I had to enable it first by going to Settings > Magnify Settings. Once it was on, a triple-tap on the screen would magnify it.
A: Not really, it was a bit finicky. I found it wasn't as natural to use as the larger default display on the Versa 4.
A: The Fitbit Charge 6 recorded 383 steps, and the Fitbit Versa 4 recorded 397 steps.
A: Yes, I have some issues with the long-term durability of the snap-in mechanism for the bands, as it feels a bit less secure than I would like.
A: The readings were very close to each other, with the Charge 6 showing around 84 bpm and the Versa 4 showing around 82 bpm while I was standing still.
A: It's a design where the excess part of the band tucks underneath the main band, which prevents it from flapping around and makes it more comfortable.
A: I prefer the Versa 4's larger display because it makes it much easier for me to read all of my daily statistics, especially since I need reading glasses now.
A: Yes, on both devices, the GPS was off by default. I had to scroll to the "Exercise" setting, select "Walk," and then turn on the GPS manually.
A: The GPS will switch between using the GPS on the device itself (Fitbit Charge 6) and the GPS on my phone to save battery life.
A: I don't wear it as much because I am uncertain about its future, so I've been exploring other brands.
A: Till June 2026 - Official Google security updates for the Fitbit page.
A: Till June 2026 - Official Google security updates for the Fitbit page.
A: The Versa 4 has a physical side button, while the Charge 6 has a haptic side button.
A: The Fitbit Charge 6 logged 4,775 steps, and the Fitbit Versa 4 came in with 4,846 steps.
A: The difference was 71 steps, with the Versa 4 logging more steps than the Charge 6.
A: Both devices seemed to keep up with the step and heart rate counting in real-time. The displays were also readable in the sun.