HMX FJ400 vs. Gateron Oil King (V2)
An in-depth look at the HMX FJ400 and the Gateron Oil King (V2) switches—which one is the best fit for you?
Overview
When considering mechanical keyboard switches, the HMX FJ400 and Gateron Oil King (V2) stand out as two compelling options, both categorized as linear switches but offering distinct experiences. The FJ400 serves as a middle ground within the HMX Film switch lineup, presenting a balanced sound profile that appeals to users seeking a moderate auditory feedback alongside smooth keypresses. In contrast, the Gateron Oil King (V2) is lauded for its extraordinary buttery smoothness and a sound profile evocative of a dark chocolate bar snapping, making it a favorite among enthusiasts who crave a more luxurious typing experience. While the FJ400’s balance may cater to those who enjoy a well-rounded sound and feel, the Oil King's enticing creamy and silky characteristics could attract users looking for a touch of indulgence in their typing sessions. However, let's dive in a bit deeper beyond generalities so you can best decide on the switch that will suit your preferences and typing style.
By the numbers
Technical specifications
Actuation force
50g
Actuation force
55g
Bottom-out force
58g
Bottom-out force
65g
Pre-travel
2.00 mm
Pre-travel
2.00 mm
Total travel
3.80 mm
Total travel
4.00 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
Proprietary INK blend
Mount type
PCB (5-pin)
Mount type
PCB (5-pin)
Spring
22mm single-stage spring
Spring
Color coated
Housing materials
The HMX FJ400 and the Gateron Oil King (V2) are both interesting offerings in the keyboard switch market, particularly when it comes to their housing materials. The FJ400 features a POM top housing while utilizing a nylon bottom housing, whereas the Oil King (V2) employs a nylon top housing and a proprietary INK blend bottom housing. The POM material of the FJ400 is celebrated for creating a unique, deeper, and muted sound profile, which results in an overall typing experience that emphasizes a pleasant auditory output. In contrast, the Oil King (V2)'s nylon top housing—being a more traditional choice—also provides a deeper sound profile, but contributes to a rounder auditory experience due to its softness, effectively absorbing sound.
When analyzing the bottom housings, a significant differentiation emerges. The FJ400 uses nylon, which shares properties with the top housing that enhance its sound profile, leading to a cohesive and muted acoustics experience. Conversely, the Oil King (V2) incorporates Gateron's proprietary INK blend for its bottom housing that aims to produce a high-pitched and clacky sound profile. This differentiation in bottom housing materials impacts the tactile feel and sound experienced when bottoming out on each switch, with the INK blend offering a sharper auditory signature compared to the more robust and softer sound produced by the nylon in the FJ400.
Despite their differences, the two switches ultimately cater to users who may enjoy similar auditory feedback in certain aspects. Both the nylon top housing of the Oil King (V2) and the POM top housing of the FJ400 will provide a deeper, more muted sound upon release, while the softer nylon found in the bottom housing for both switches results in an overall fuller sound signature. For users seeking a satisfying typing experience, this means they can experience comparable sound dynamics, albeit with distinctly unique characteristics based on the differing materials. The different combinations may yield different auditory experiences, but both switches hold the potential of appealing to enthusiasts looking for rich, enjoyable sound profiles.
Weight
When comparing the HMX FJ400 linear switch to the Gateron Oil King (V2) linear switch, notable differences in actuation and bottom out forces emerge. The FJ400 features a lighter actuation force of 50 grams and a bottom out force of 58 grams, making it more suitable for users who prefer a softer touch for extended typing or gaming sessions. In contrast, the Oil King (V2) has a slightly heavier actuation force of 55 grams and a bottom out force of 65 grams, catering to those who enjoy a more substantial feel when pressing keys. As a result, the Oil King (V2) offers a firmer typing experience, which could be preferable for individuals seeking more tactile feedback. In summary, while both switches are categorized as medium and medium-heavy respectively, the FJ400's lighter forces may lend themselves to longer use without fatigue, whereas the Oil King (V2) provides a weightier push that some users might find more satisfying.
Travel distance
When comparing the travel distances of the HMX FJ400 linear switch and the Gateron Oil King (V2) linear switch, a distinct difference is evident. The FJ400 features a travel distance of 3.8 mm, while the Oil King (V2) has a travel distance of 4 mm. This makes the FJ400 the shorter option and the Oil King (V2) the longer one. Users who favor more responsive keystrokes might prefer the FJ400 due to its shorter travel distance, allowing for quicker actuation, which is especially beneficial in gaming scenarios. Conversely, those who appreciate a deeper feel with more feedback under their fingers might gravitate towards the Oil King (V2) due to its longer travel distance. Thus, while both switches can cater to different preferences in typing experience, the choice between them ultimately hinges on whether one desires a more rapid response or a more substantial feel when typing.
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 Oil King (V2) comes in at $6.50 per 10 switches.
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 sound profile of the HMX FJ400 linear switch provides a balanced auditory experience, effectively blending clarity and depth, making it suitable for various environments without being overly intrusive. In contrast, the Gateron Oil King (V2) showcases a low-pitched and bassy sound, reminiscent of the satisfying snap of dark chocolate, providing a richer, deeper auditory feedback during typing. This combination of sound characteristics lends each switch a unique personality; while the FJ400 maintains an even tone, the Oil King (V2) captivates with its indulgent, deeper tones that might appeal more to those who favor a mellow acoustic atmosphere.
When it comes to feel, the FJ400 strikes a middle ground with its typing experience, which is often enjoyable but lacks specific descriptors in the available information, making it a somewhat neutral option. The Oil King (V2), however, excels with a creamy, silky, and buttery touch, delivering an exceptionally smooth typing experience that feels almost effortless. This engaging tactile feedback, paired with its polished finish, allows for smooth transitions between keystrokes, ensuring each press glides seamlessly into the next. The luxurious sensation will likely leave a more lasting impression compared to the FJ400's more standard performance.
In summary, both the HMX FJ400 and the Gateron Oil King (V2) have distinct sonic and tactile profiles, catering to diverse preferences among typists. While the FJ400 offers a balanced sound and a neutral feel, the Gateron Oil King (V2) stands out with its rich, low-pitched acoustics and exceptionally smooth typing experience. If you prefer a deeper and more textured auditory feel paired with a luxurious tactile sensation, the Oil King (V2) would likely be the better choice. However, if you seek a more versatile and balanced profile, the FJ400 could provide a satisfying alternative.
Conclusion
To sum up, your choice between the HMX FJ400 linear switch and the Gateron Oil King (V2) linear switch ultimately depends on your personal preferences in terms of feel, sound, and application. If you prefer a balanced typing experience with a medium actuation force of 58 grams, then the FJ400 would be the ideal choice for you. This switch provides a respectable sound profile that doesn’t overpower your environment, making it suitable for both office use and gaming. On the other hand, if you lean towards a heavier typing feel and enjoy deep, rich sounds, the Oil King (V2) could be your perfect match. With its bottom-out force of 65 grams, you'll experience that buttery smoothness and creamy feel in every keystroke, complemented by a low-pitched, bassy tone reminiscent of snapping dark chocolate. Therefore, if you want a switch that feels polished and delivers unparalleled smoothness, opt for the Oil King (V2). Overall, consider what’s more important to you—an all-around balanced switch or a luxurious typing experience with a more pronounced sound profile—as this decision will guide you to the perfect switch for your mechanical keyboard.
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