HMX Deep Navy vs. HMX FJ400

Overview

When it comes to choosing the perfect mechanical keyboard switch, the HMX Deep Navy and HMX FJ400 are two worthy contenders that cater to different preferences while maintaining the appealing characteristics of linear switches. The Deep Navy switches are celebrated for their rich, sharp sound profile, thanks to their full nylon construction and the silky smoothness provided by the Ly stem, making them ideal for users who appreciate an engaging auditory experience with each keystroke. In contrast, the FJ400 stands out as a balanced option in the HMX Film switch lineup, offering a more neutral sound profile that allows for versatile use across various applications, from gaming to typing. While the Deep Navy may attract those seeking a tactile and resonant feedback, the FJ400 serves as a middle ground for users desiring a more subdued and consistent experience. However, let's dive in a bit deeper beyond generalities so you can best decide on the best switch for you.

By the numbers

HMX Deep Navy Linear

HMX FJ400 Linear

$3.50

$2.79 per 10

$3.50

$3.29 per 10

Learn moreLearn more

Housing materials

The housing materials of the HMX Deep Navy and the HMX FJ400 exhibit both similarities and differences that influence the overall typing experience. The Deep Navy's top housing is crafted from nylon, which is recognized for its ability to create a fuller and deeper sound profile. This characteristic arises from nylon's softer texture, allowing it to absorb sound vibrations more effectively than harder plastics. In contrast, the FJ400 utilizes a POM (polyoxymethylene) top housing, renowned for its unique sound profile that leans toward the deeper and muted side. While both materials contribute to a satisfying auditory experience, the primary distinction lies in how these materials shape the sound when keys are released, with nylon providing a rounder echo and POM offering a distinct yet muted tone.

When examining the bottom housings of both switches, an interesting overlap emerges. Both the HMX Deep Navy and the HMX FJ400 feature nylon for their bottom housing, a material well-known for its ability to produce a deeper and fuller sound profile. This shared characteristic means that users can expect a consistent sound experience where the bottom-out sound, influenced heavily by the softer nylon, remains impactful and resonant in both switches. Therefore, while the top materials diverge in their sonic qualities—the nylon of the Deep Navy offering a distinct sound versus the muted quality of the FJ400's POM—both bottom housings maintain a level of consistency that assures users a satisfying auditory result.

Ultimately, the differences in the housing materials of the HMX Deep Navy and HMX FJ400 result in nuanced experiences rather than stark contrasts. The nylon bottom housing present in both switches guarantees a harmonious base to their sound profiles, reinforcing a deeper auditory experience regardless of the differing top materials. The variability between the POM and nylon top housings plays a critical role in the timbre of sounds throughout the keystroke process, providing distinguishing features to each. However, as both utilize nylon on the bottom, they share a core similarity that ensures users will encounter a robust and enriched sound experience across both models.

Weight

When comparing the HMX Deep Navy linear switch and the HMX FJ400 linear switch, there are notable differences in both actuation force and bottom out force. The Deep Navy switch features a lighter actuation force of 40 grams and a bottom out force of 45 grams, making it ideal for users who prefer a gentler typing experience, particularly during long typing sessions or gaming marathons. In contrast, the FJ400 switch has a heavier actuation force of 50 grams and a bottom out force of 58 grams, appealing to those who enjoy a more substantial push feel while typing. This difference in forces suggests that users of the Deep Navy will likely find it easier on their fingers, whereas the FJ400 caters to individuals seeking stronger feedback with each keystroke. As a result, if comfort and prolonged use are a priority, the lighter Deep Navy switch would be the better choice, while the heavier FJ400 would suit users who appreciate a firmer typing experience.

Travel distance

When comparing the travel distance of the HMX Deep Navy linear switch and the HMX FJ400 linear switch, the differences are clear. The Deep Navy has a travel distance of 3.6 mm, while the FJ400 extends slightly longer at 3.8 mm. This makes the Deep Navy the shorter option, designed potentially for those who appreciate quicker response times, making it particularly appealing for gamers. In contrast, the FJ400, with its longer travel distance, may provide a more pronounced and hearty typing experience, which some users might find more comfortable. Ultimately, your choice between these two switches will depend on whether you prioritize responsiveness or depth in key presses, as the variations in travel distance can significantly influence tactile feedback and overall enjoyment.

Price comparison

Typing experience

In terms of sound, the HMX Deep Navy switch delivers a rich and sharp audio profile, primarily due to its full nylon construction which contributes to a more pronounced acoustic signature. Users can expect a crisp sound with each keystroke, enhancing the overall typing experience. On the other hand, the HMX FJ400 switch presents a more balanced sound profile, positioned as a middle ground among the HMX Film switch lineup. This means that while it may lack the pronounced richness of the Deep Navy, it offers a more neutral auditory experience suitable for a variety of environments. Ultimately, both switches provide distinct sound characteristics, with the Deep Navy emphasizing a sharper note, while the FJ400 maintains a steadier tone.

When it comes to feel, the HMX Deep Navy switch is renowned for its silky smoothness with every keystroke, a quality attributed to its Ly stem design which allows for seamless actuation without any noticeable texture interruptions. This smooth feeling can enhance typing speed and accuracy, making it particularly appealing to those who prioritize fluidity in their keystrokes. The HMX FJ400 switch, meanwhile, aims to strike a balance in its tactile experience, likely offering a more moderate feedback compared to the Deep Navy that makes it versatile for both typing and gaming. However, specific descriptions of its feel are not provided, which leaves some uncertainty in direct comparison to the Deep Navy switch's smoothness.

In conclusion, both the HMX Deep Navy and HMX FJ400 linear switches present unique sound and feel qualities catering to different preferences. The Deep Navy is celebrated for its rich, sharp sound and silky smooth keystroke experience, making it ideal for enthusiasts seeking auditory and tactile engagement. Conversely, the FJ400 offers a balanced sound and a versatile feel, appealing to users who desire a more neutral experience. Ultimately, both switches can provide satisfying results depending on individual preference, but they do cater to slightly different audiences within the mechanical keyboard community.

Conclusion

To conclude, both the HMX Deep Navy linear switch and the HMX FJ400 linear switch offer distinct advantages depending on your preferences and keyboard usage scenarios. If you value a lighter keystroke and enjoy a rich, sharp sound profile, the Deep Navy switch is an excellent choice. Its 45-gram bottom-out force makes it suitable for rapid typing and gaming sessions, where you want to minimize finger fatigue while enjoying a silky smoothness that enhances overall comfort. On the other hand, if you prefer a more medium resistance with a balanced sound profile, the FJ400 is the way to go. With a 58-gram bottom-out force, it offers a satisfying tactile feedback that can be beneficial for prolonged typing or work environments where a slight resistance may aid in precision. Ultimately, your choice will depend on the balance between sound, feel, and the actuation force that you find most comfortable for your specific needs.

Mentioned in this article

HMX Deep Navy Linear

$3.50

$2.79 per 10

Learn more

HMX FJ400 Linear

$3.50

$3.29 per 10

Learn more