HMX FJ400 vs. Gateron Weightlessness
An in-depth look at the HMX FJ400 and the Gateron Weightlessness switches—which one is the best fit for you?
Overview
When it comes to mechanical keyboards, the choice of switches can significantly impact your typing experience. For those who prefer a smooth and uninterrupted keystroke, the HMX FJ400 linear switches provide a balanced sound profile, making them an excellent option for both gaming and typing. In contrast, the Gateron Weightlessness switches cater to users who appreciate a tactile feedback with a subtle to moderate bump, allowing for a more pronounced connection with each keystroke while maintaining a balanced auditory experience. While the FJ400 is ideal for users seeking a fluid typing experience free of distractions, the Weightlessness shines for those who enjoy the responsive feel of tactile feedback. However, let’s dive in a bit deeper beyond generalities so you can best decide on the right switch for your needs.
By the numbers
Technical specifications
Actuation force
50g
Actuation force
50g
Bottom-out force
58g
Bottom-out force
N/A
Pre-travel
2.00 mm
Pre-travel
2.00 mm
Total travel
3.80 mm
Total travel
3.40 mm
Factory lubed
Yes
Factory lubed
Yes
Stem construction
Standard
Stem construction
Standard
Stem material
T2
Stem material
POM
Top housing material
POM
Top housing material
Nylon
Bottom housing material
Nylon
Bottom housing material
Nylon
Mount type
PCB (5-pin)
Mount type
PCB (5-pin)
Spring
22mm single-stage spring
Spring
22mm double-staged spring
Housing materials
The housing materials of the HMX FJ400 and Gateron Weightlessness switches exhibit notable similarities and differences, influencing the tactile and auditory experiences they provide. The FJ400 features a POM top housing while the Weightlessness employs a nylon top housing. POM, known for its durability and stiffness, contributes to a unique sound profile that is deeper and more muted compared to traditional materials. In contrast, the nylon top housing of the Weightlessness is softer, allowing for a fuller and rounder sound. This distinction in materials means that while both switches deliver a pleasant auditory experience, the HMX FJ400 may produce a more pronounced and controlled sound due to the Dumber nature of POM, whereas the Gateron Weightlessness creates a deeper and potentially warmer tone attributed to the sound-absorbing qualities of nylon.
On the bottom side, both the FJ400 and Weightlessness employ nylon housings, resulting in a shared sound profile in this regard. The nylon bottom housings of both switches contribute to a deeper and fuller auditory experience, as they absorb sound more effectively than harder plastics. This shared characteristic helps create a consistent bottom-out sound and feel for both switches. The similarity in material choice for the bottom housing means that users can expect a comparable tactile feedback upon key presses, as both switches exhibit the same softer qualities that nylon brings to the table. Thus, regardless of the differences in the top housing materials, the bottom housing designs provide a cohesive experience for typists.
With the variations in the top housing between the two switches, users will notice how the distinct materials influence their overall typing experience. The FJ400’s POM top housing contributes a sharper and more defined sound when releasing the key, while the Weightlessness’s nylon top dampens this release for a less pronounced sound. This means that while both switches can deliver a similar auditory experience from the bottom housing, the overall results will differ slightly based on the top housing's characteristics. Consequently, users may prefer the FJ400 for a more precise sound during actuation and release, while they may gravitate towards the Weightlessness for a warmer, more subdued overall auditory profile.
Weight
When comparing the HMX FJ400 linear switch and the Gateron Weightlessness tactile switch, both switches share the same actuation force of 50 grams, indicating that they require an equal amount of force to trigger a keystroke. This similarity provides a consistent typing experience for users who prefer a moderate tactile feel. However, while the FJ400 has a bottom out force of 58 grams, the bottom out force for the Weightlessness switch remains unknown. This means that while the FJ400 provides a definitive resistance when pressed down completely, the Weightlessness may either bottom out at a different force or not have a specified resistance level at all. In terms of weight, the FJ400's noticeable bottom out force might cater more to those who enjoy a firmer typing experience, whereas the Weightlessness, with its mystery surrounding bottom out, could potentially appeal to users seeking a lighter touch—although this remains uncertain. Ultimately, if a lighter actuation feels more comfortable for extended use, both switches could provide similar results in that regard, but the tactile feedback and overall experience will hinge on the unknown characteristics of the Weightlessness switch.
Travel distance
When comparing the travel distances of the HMX FJ400 linear switch and the Gateron Weightlessness tactile switch, we find a notable difference: the FJ400 has a travel distance of 3.8 mm, while the Weightlessness measures at 3.4 mm. This means that the FJ400 provides a longer travel distance, which some users may prefer for a more substantial feel during key presses. In contrast, the shorter travel distance of the Weightlessness switch caters to those who favor quick responsiveness, particularly appealing to gamers who seek faster key activation. Ultimately, if you prioritize a tactile experience with more depth, the FJ400 would be your better choice, whereas the Weightlessness would suit those who appreciate a snappier response with a shorter actuation.
Price comparison
Which switch is more bang for your buck?
The HMX FJ400 has an MSRP of $3.50 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the FJ400 for $3.29.
The Gateron Weightlessness has an MSRP of $6.10 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the Weightlessness for $5.50.
Here at Milktooth, we offer the best prices on switches (on average, 27% lower the competition). In addition, we offer free shipping on orders over $49.00. We also offer free returns and exchanges, so you can shop with guaranteed satisfaction.
That said, while price is an important piece of the puzzle, our opinion is that you should ultimately pick the option that most suits your unique preferences since you’ll be using these switches for years to come. In other words, finding something perfect for you is, in our view, the most important criteria.
Typing experience
The HMX FJ400 linear switch is widely regarded for its balanced sound profile, which strikes a harmonious middle ground in the HMX Film switch lineup. On the other hand, the Gateron Weightlessness tactile switch also boasts a balanced sound profile that complements its tactile characteristics. While the specific sound qualities of the FJ400 are not detailed, the Weightlessness switches are noted for providing a sound that resonates well with their tactile feel, suggesting an overall pleasing auditory experience for both switches. It's important to remember that the sound produced can also be influenced by various external factors, including the keyboard housing and keycap material used, which means both switches have the potential to deliver a similar auditory experience depending on setup.
Regarding the feel of the two switches, the FJ400 offers a smooth and linear action, enabling fluid keystrokes without tactile bumps. In contrast, the Gateron Weightlessness tactile switch provides a subtle to moderate tactile feel, which can create a distinctive feedback during use. This difference in tactile feedback is noteworthy—if you prefer a seamless experience without tactile interruptions, the FJ400 would be the go-to choice, while the Weightlessness would appeal to those who enjoy the sensation of a tactile bump upon actuation.
In conclusion, both the HMX FJ400 and Gateron Weightlessness switches offer unique advantages that cater to different typing preferences. The FJ400 is ideal for users desiring a smooth, linear experience while the Weightlessness caters to those who appreciate tactile feedback. Both switches feature balanced sound profiles, suggesting that, with the right setup, either switch can produce a satisfying auditory experience. Your choice between these two will depend primarily on whether you prioritize a linear feel or a tactile feedback experience.
Conclusion
To sum up, when deciding between the HMX FJ400 linear switch and the Gateron Weightlessness tactile switch, your needs and typing preferences should guide your choice. If you prefer a firm and consistent feedback while typing, the FJ400, with its 58 grams of bottom-out force, provides a balanced tactile experience that can enhance your typing precision without feeling overly heavy. This switch is ideal for those who enjoy a linear feel with a satisfying sound profile, making it a great choice for both gaming and typing tasks where control and responsiveness are key. On the other hand, if you value a more tactile engagement with each keystroke, the Weightlessness switch might be more suitable for you. Its subtle to moderate tactile feedback can be particularly rewarding for typists who appreciate a little bump without the overwhelming resistance, making every key press feel intentional and engaging. The balanced sound profile of the Weightlessness complements its tactile characteristics, providing a serene and pleasant auditory experience while typing. Therefore, assess your preferences for key feel and sound, as well as your specific use cases, to choose the switch that best aligns with your typing style and needs.
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