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In the sports watch market, it’s common to spend over 300, 400, or even 600 euros for a watch equipped with good GPS tracking, advanced sports features, and accurate heart rate monitoring.
One could opt for an inexpensive smartwatch, but it might not necessarily be compatible with all the expected sports features.
In this context, Decathlon launched its Decathlon Fit 100 this year, a sports watch with an Amoled screen, available in two sizes and priced at 70 euros. Here is the complete review.
Decathlon Fit 100Technical Specifications
| Model | Decathlon Fit 100 |
|---|---|
| Screen Size | 1.97 inches |
| Screen Resolution | 390 x 450 pixels |
| Panel | AMOLED |
| Weight | 90 g |
| Heart Rate Sensor | Yes |
| Sleep Analysis | Yes |
| Accelerometer | Yes |
| Ambient Light Sensor | Unknown |
| Protection Index | 5ATM |
| Product Sheet |
The watch for this review was provided by the manufacturer.
Decathlon Fit 100A Classic, Unadorned Design
The Decathlon Fit 100 is not the first sports watch from Decathlon. In the past, the retailer had already associated its running-specific brand, Kiprun, with watchmaker Coros for higher-end models, the Kiprun GPS 500 and the Kiprun GPS 900.
However, with its Fit 100, the brand targets beginner athletes with an even less expensive watch and a more lifestyle-oriented design. Gone is the metal bezel around the screen or the reinforced look. Here, we’re dealing with a watch whose square design is very classic, reminiscent of an Apple Watch.
There are two watch sizes available with the Decathlon Fit 100 S and the Decathlon Fit 100 M. In my case, I had the opportunity to test the watch in its S size, the smaller one, with a weight of 34 g and a case dimension of 42.86 x 36.27 x 10.8 mm. It’s somewhat thick, but the lightweight nature of the watch makes it easy to forget on your wrist. For the larger size, Decathlon offers dimensions of 46.66 x 40.05 x 10.8 mm and a weight of 41 grams.
The Decathlon Fit 100 also incorporates a single button on the side, which also acts as a rotating crown for navigating through menus—more on that later. On the opposite edge, there is also a speaker that allows for answering calls, among other functions.
The Decathlon watch also adopts a standard strap system with attachment using lugs and comes with a silicone strap equipped with a quick-release pump. Thus, the Fit 100 will be compatible with any standard 20 mm wide strap—22 mm for the Fit 100 M module.
Overall, while the design of the Decathlon Fit 100 is not the most refined, it still offers a sober and classic appearance. It does the job.
The watch also has the advantage of being certified 5 ATM, meaning it can be worn without worry in the shower, in the rain, or even in the pool for surface swimming.
Decathlon Fit 100An Effective Screen, but Lacking a Light Sensor
For its watch screen, Decathlon opted for an Amoled panel rather than the MIP type found on previous Kiprun watches designed in partnership with Coros.
Thus, we have a screen with infinite contrast and vivid colors that remains readable in most circumstances. Logically, the screen diagonal will vary depending on the watch size—1.75 inches for the Fit 100 S and 1.97 inches for the Fit 100 M. In both cases, however, Decathlon reports the same resolution of 390 x 450 pixels.
In use, this resolution proves sufficient for comfortably viewing the displayed data without being bothered by any potential pixelation: on the Decathlon Fit 100 S that I tested, the pixels remain indistinguishable from each other, and you wouldn’t be able to make them out individually.
The watch also integrates an always-on display mode with two dial options: digital or analog. This mode will allow you to keep the time displayed at any moment and can also be programmed only for certain hours (to deactivate it at night). The same goes for the function that turns on the screen when you raise your wrist, which automatically shuts off when the watch goes into “do not disturb” mode, which is also programmable.
However, the Decathlon Fit 100 lacks a light sensor. This is a real drawback as this feature has become a standard in the industry to prevent you from burning your retinas in the middle of the night or to keep the screen readable during a workout in bright sunlight. Here, we’ll have to adjust the brightness level on the five levels offered, without the watch being able to fine-tune it later based on ambient light. That’s a pity.
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Lastly, in terms of watch faces, the Decathlon Fit 100 comes with five pre-installed. Unfortunately, they are not customizable in terms of shades or complications. Instead, you can download more from the Decathlon Hub app on your smartphone, but these are just variants of those provided directly on the watch, albeit with more varied colors.
Decathlon Fit 100An Interface Very Easy to Use
For its new Fit 100 watch, Decathlon has launched a new mobile app, called Decathlon Hub, available on both iPhone and Android smartphones. The watch is thus compatible with both ecosystems.
Decathlon Hub
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For navigation on the watch, you can use either touch controls or navigation using the rotating crown:
- swipe up: access notifications;
- swipe down: quick settings;
- swipe left/right: widgets (music, sport, weather, sleep, stress, heart rate, etc.);
- swipe right in menus: go back;
- short press on the crown: open the list of apps / return to the home screen;
- long press on the crown: power off menu.
Here we have an interface that is quite simple to understand and straightforward, in line with what we find on entry-level watches from Huawei or Xiaomi.
However, given its focus on sports and fitness, the Decathlon Fit 100 primarily integrates apps related to health tracking or physical activity. There are only a few apps outside these uses, such as alarms, stopwatch and countdown timer, weather, or music control.
The watch will, however, allow you to view received notifications—with the ability to choose which phone apps send you notifications—as well as to answer calls. Logically, the watch does not allow for contactless payments or the installation of third-party apps.
On the smartphone side, as we’ve seen, it’s the Decathlon Hub app that links to the watch. This app consists of four tabs: home (with your step count, calories burned, or recent workouts), activities (the list of your recorded workouts), products (to manage the Fit 100), and profile (to manage personal settings and app settings). Here we have an interface that is rather sober and easy to use.
Decathlon Fit 100Adequate Tracking for Sporting Activity and Well-being
For health and sports activity tracking, the Decathlon Fit 100 includes everything we expect from a connected watch. It is equipped with an optical heart rate monitor, a pulse oximeter, a pedometer for counting steps, and a multi-GNSS GPS chip. However, it does not include a temperature sensor, electrocardiogram, or compass.
GPS Accuracy of the Decathlon Fit 100
For its watch’s GPS tracking, Decathlon has integrated a multi-GNSS chip, but it is compatible with only one frequency band (L1) and not multiband as is the case with higher-end sports watches.
To compare the GPS accuracy of the Fit 100, I wore it during several running outings with a Garmin Fenix 8, used here as a reference.
| Runs | Garmin Fenix 8 | Decathlon Fit 100 | Difference |
|---|---|---|---|
| Run 1 (track) | 10.618 km | 10.740 km | +1.15 % |
| Run 2 (park) | 13.011 km | 13.120 km | +0.84 % |
| Run 3 (city) | 7.009 km | 7.240 km | +3.30 % |
| Total | 30.638 km | 31.100 km | +1.51 % |
Overall, after more than 30 km covered, the Decathlon watch performs well in estimating the distance covered, merely overestimating it by 1.51% for our test.
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Maya Singh is a senior editor covering tablets and hybrid devices. Her work explores how these tools reshape digital productivity and learning. She also contributes to feature editorials on emerging tech.
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