HMX FJ400 vs. Gateron Jupiter Red

Overview

When exploring the world of mechanical keyboards, the choice of switches can significantly impact your typing experience. The HMX FJ400 stands out as a balanced option in the HMX Film switch lineup, known for its well-rounded sound profile that caters to those who appreciate a harmonious blend of auditory feedback and tactile satisfaction. On the other hand, the Gateron Jupiter Red switches are celebrated for their smooth and uninterrupted keystroke, driven by a single-stage spring that provides a medium-heavy actuation force. These switches feature the high-precision molds of the Jupiter series, resulting in softer backlight effects that enhance the aesthetic appeal of any keyboard setup. While both choices are linear switches aimed at delivering a satisfying typing experience, the FJ400 leans towards a balanced auditory profile, whereas the Jupiter Red focuses on a silky-smooth keystroke. However, let's dive in a bit deeper beyond generalities so you can best decide on the ideal switch for your needs.

By the numbers

HMX FJ400 Linear

Gateron Jupiter Red Linear

$3.50

$3.29 per 10

$2.80 per 10

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Housing materials

The HMX FJ400 and Gateron Jupiter Red switches utilize different materials for their top housings, leading to distinct sound profiles during typing. The FJ400 features a POM top housing, which is known for producing a deeper and more muted sound profile. This characteristic is attributed to the acoustic properties of POM, which create a pleasingly unique sound that is softer on the ears. In contrast, the Jupiter Red employs a polycarbonate top housing that results in a sharper, higher-pitched, and crisper auditory experience. The stiffer nature of polycarbonate contributes to a more resonant sound profile, especially when the switch is engaged with RGB lighting due to its translucency. Thus, while both materials affect sound output, the FJ400 leans towards a more subdued tone, whereas the Jupiter Red generates a brighter and more pronounced sound.

Interestingly, both the HMX FJ400 and Gateron Jupiter Red switches feature nylon as their bottom housing material. Nylon is recognized as a classic switch housing material and contributes similarly to the sound profile of both switches. This shared material results in a deeper and fuller sound when typing, as nylon absorbs sound more effectively due to its softer nature. As such, the impact of the nylon bottom housing allows users to experience a conforming sound quality that is rounder and less sharp, providing a uniform depth to both switches when bottoming out. The use of nylon in the bottom housing establishes a common auditory foundation between the two switches.

When considering the interaction between the top and bottom housings, it is evident that the distinct characteristics of POM and polycarbonate in the top housing create different sound experiences. The sound when pressing and releasing the keys will vary; the nylon bottom housing ensures that both switches share a fuller auditory experience upon bottoming out, while the top housings govern the release sound. Consequently, even though the FJ400 and Jupiter Red switches may appear to share some auditory qualities due to their nylon base, the differing top materials lead to a pronounced divergence in the sound profile that one would notice during typing. Overall, understanding these design choices allows users to appreciate how they impact both the acoustics and aesthetics of their keyboard experience.

Weight

When comparing the actuation force and bottom out force of the HMX FJ400 linear switch and the Gateron Jupiter Red linear switch, we can see some interesting distinctions. The FJ400 has an actuation force of 50 grams, making it slightly heavier than the Jupiter Red, which has an actuation force of 45 grams. This difference means that the FJ400 may provide a more substantial feel for typists who prefer a stronger push. Both switches have medium bottom out forces, with the FJ400 at 58 grams and the Jupiter Red at 60 grams. While the bottom out forces are close, the Jupiter Red is marginally heavier in this regard. Therefore, for prolonged typing or gaming sessions, those who favor lighter actuation might find the Gateron Jupiter Red more suitable, whereas those who enjoy a stronger tactile experience might gravitate towards the HMX FJ400. Overall, while both switches offer a medium range feel, the Jupiter Red's lower actuation force makes it the lighter option, appealing to users who seek less fatigue during extended use.

Travel distance

When comparing the travel distances of the HMX FJ400 linear switch and the Gateron Jupiter Red linear switch, there's a notable difference: the FJ400 has a travel distance of 3.8 mm, while the Jupiter Red has a travel distance of 4.0 mm. This makes the FJ400 the shorter option, which may appeal to gamers seeking faster response times and a more responsive feel during gaming sessions. On the other hand, the Jupiter Red's longer travel distance could be preferred by those who enjoy a more pronounced tactile experience and find the deeper push to be less abrupt. Ultimately, the choice between these two switches will depend on personal preference regarding depth and responsiveness.

Price comparison

Typing experience

The sound profile of the HMX FJ400 linear switch is more balanced compared to the Gateron Jupiter Red, which is characterized as having a neutral sound. The FJ400's design leads to a moderate sound level that is appealing for both work and home environments, making it versatile for various users. On the other hand, the Jupiter Red maintains a moderate sound profile that complements its smooth action, ensuring that it is suitable for a wide range of contexts without being distracting. The sound experience of both switches can be affected by the keyboard they are placed in and the type of keycaps used, but overall, both allow for a quiet and unobtrusive typing experience.

When it comes to feel, the FJ400 does not have a specific description, making it more challenging to analyze directly against the Gateron Jupiter Red. However, the Jupiter Red is known for its polished, creamy, silky, and mild attributes, offering a notably smooth and refined typing experience. Users can expect reduced friction and easy key travel with the Jupiter Red, creating an almost gliding sensation with each keystroke. The smoothness provided by the Jupiter Red's construction and possible factory lubrication contributes significantly to its typing feel, making it exceptionally inviting for users looking for comfort and performance in their key presses.

In conclusion, while the HMX FJ400 linear switch offers a balanced sound profile and unknown feel characteristics, the Gateron Jupiter Red stands out with its smooth, polished sensation and neutral sound. If a user is seeking a versatile and quiet option, both switches are likely to meet similar auditory demands, with the Jupiter Red providing a more refined typing experience. Therefore, whether one opts for the HMX FJ400 or the Gateron Jupiter Red, they can expect a competent and pleasing performance tailored to varying preferences and environments.

Conclusion

To conclude, choosing between the HMX FJ400 and the Gateron Jupiter Red linear switches largely depends on your personal preferences and typing style. If you are seeking a balanced sound profile and a switch that is versatile for both work and gaming, the HMX FJ400 could be your ideal choice, as it offers a medium bottom-out force of 58 grams that strikes a nice equilibrium for most users. Its sound profile is well-regarded for being well-rounded and suitable for various environments. On the other hand, if you prioritize a silky and polished typing experience, the Gateron Jupiter Red might be better suited for you. With its slightly heavier bottom-out force of 60 grams and a refined, uninterrupted keystroke, this switch is perfect for those who enjoy smooth and buttery key presses. The Jupiter Red also excels at providing a more luxurious typing feel, which is appealing for extended typing sessions. In essence, if you value a consistent, creamy experience with reduced friction, the Jupiter Red will elevate your typing game. Ultimately, your choice boils down to whether you want a balanced yet versatile option with the FJ400 or a more polished and silky experience with the Jupiter Red.

Mentioned in this article

HMX FJ400 Linear

$3.50

$3.29 per 10

Learn more

Gateron Jupiter Red Linear

$2.80 per 10

Learn more