HMX FJ400 vs. Haimu Neo White
An in-depth look at the HMX FJ400 and the Haimu Neo White switches—which one is the best fit for you?
Overview
When it comes to choosing mechanical keyboard switches, the HMX FJ400 and Haimu Neo White both offer unique advantages that cater to different typing preferences, despite being linear switches. The FJ400 is regarded as the middle ground in the HMX Film switch lineup, boasting a balanced sound profile that appeals to users seeking a harmonious typing experience without excessive noise. Conversely, the Haimu Neo White switches are distinguished by their medium weight and slightly reduced total travel, which contribute to a distinctive typing feel. Additionally, the rare use of a Ly stem in the Neo White ensures a remarkably smooth actuation, making every keystroke feel satisfying yet responsive. Both switches have their merits: the FJ400 for those who appreciate versatility and balance, and the Neo White for those who prioritize smoothness and a unique tactile sensation. However, let's dive in a bit deeper beyond generalities so you can best decide on the best switch for you.
By the numbers
Technical specifications
Actuation force
50g
Actuation force
N/A
Bottom-out force
58g
Bottom-out force
58g
Pre-travel
2.00 mm
Pre-travel
2.00 mm
Total travel
3.80 mm
Total travel
3.60 mm
Factory lubed
Yes
Factory lubed
Yes
Stem construction
Standard
Stem construction
Standard
Stem material
T2
Stem material
Ly
Top housing material
POM
Top housing material
Polycarbonate
Bottom housing material
Nylon
Bottom housing material
Nylon
Mount type
PCB (5-pin)
Mount type
PCB (5-pin)
Spring
22mm single-stage spring
Spring
Double-staged spring
Housing materials
The housing materials of the HMX FJ400 and the Haimu Neo White switches offer a distinct contrast in their sound profiles, largely influenced by the different materials used for their top housings. The FJ400's top housing is made of POM (polyoxymethylene), which is known for producing a unique, deeper, and relatively muted sound profile. This characteristic allows for a more subdued auditory experience, which some users may find appealing for a softer typing sensation. In contrast, the Neo White's top housing is constructed from polycarbonate, a stiffer plastic that creates a sharper, higher-pitched, and crisper sound profile. The inherent qualities of polycarbonate lead to a clearer and more resonant output, making it particularly attractive for those who prefer a more pronounced auditory feedback while typing. When it comes to aesthetic considerations, the transparent nature of polycarbonate enhances RGB lighting effects, something that users of the Neo White may particularly enjoy.
While the top housings of the two switches differ distinctly in material and resulting sound profile, the bottom housings are similar in that both utilize nylon. This commonality results in a shared deeper and fuller sound profile when typing. Nylon is a well-regarded housing material in the mechanical keyboard community, known for its softer properties that absorb sound, thus creating a rounder tactile experience. Consequently, the bottom-out sound and feel when pressing the keys on both switches will exhibit similar attributes due to the use of nylon, emphasizing a bass undertone to the overall acoustic signature of each switch.
The divergent characteristics of the top and bottom housings illustrate how the combination of materials can lead to varied user experiences. Users of the FJ400 will appreciate the deeper auditory experience from its POM top housing, which contrasts with the sharper sound signature of the Neo White provided by its polycarbonate top. However, both switches can deliver satisfactory results when it comes to the sound and feel associated with the nylon bottom housing, leading to a full-bodied typing experience. Ultimately, while they share some similarities, the preferences for sound profile, aesthetics, and tactile feedback will likely sway users toward one switch or the other based on individual tastes.
Weight
When comparing the HMX FJ400 and the Haimu Neo White linear switches, we see notable differences in their actuation forces. The FJ400 features an actuation force of 50 grams, which provides a balanced typing experience, while the Neo White has an unspecified actuation force. Both switches share the same bottom out force of 58 grams, indicating that they will feel similar when fully pressed down. As for weight considerations, the FJ400, with its known actuation force, offers a more definitive lightweight typing experience suited for prolonged use, while the Neo White's lack of specified actuation force leaves it open-ended but potentially lighter or comparable in usage. Overall, if one prefers a lighter actuation for longer typing sessions, the FJ400 is the safer choice, while the Neo White may appeal to those seeking more uncertainty in their switch experience.
Travel distance
When comparing the travel distance of the HMX FJ400 linear switch and the Haimu Neo White linear switch, there is a notable difference that may influence user preference. The FJ400 features a travel distance of 3.8 mm, while the Neo White has a slightly shorter travel distance of 3.6 mm. This means that the Neo White allows for a quicker actuation, which can be advantageous for gamers seeking faster response times. On the other hand, the FJ400's longer travel distance may provide a more substantial feel when typing or gaming, catering to those who appreciate a bit more depth in their keystrokes. Ultimately, if you prioritize responsiveness, the Neo White would be the better choice, while the FJ400 caters to users who prefer a deeper keypress experience.
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 Haimu Neo White comes in at $2.70 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 characteristics of the HMX FJ400 linear switch are noted for their balanced profile, making it a versatile option for both casual and professional settings. While the exact sound specifics are not detailed, its classification as a middle-ground switch suggests that it strikes a harmony between loud and quiet, ensuring that it won't be overly distracting in shared environments. In contrast, the Haimu Neo White linear switch is identified as neutral, featuring a moderate actuation force that results in a sound that is unobtrusive and suitable for a variety of situations, whether one is a beginner or an experienced typist. This neutral sound profile complements its design, allowing for an enjoyable typing experience without unnecessary distraction.
When it comes to feel, the FJ400 offers a balanced typing experience, though specifics about its tactile feedback are notably absent. This could imply a consistent performance without extremes in response. On the other hand, the Neo White's mild feel is characterized by a gentle actuation that provides a smooth and satisfying typing experience. The unique Ly stem contributes to this smoothness, making every keystroke feel deliberate and less abrupt. For users who favor a soft and approachable tactile experience, the Neo White presents a clear advantage with its carefully crafted feel.
In summary, while both the HMX FJ400 and Haimu Neo White linear switches serve their purpose effectively, they each cater to slightly different preferences. The FJ400's balanced sound and unspecified, yet presumably even feel create a solid choice for users who seek moderation in their typing experience. The Neo White, with its neutral sound and distinctly mild feel, is ideal for those who prefer a smooth actuation that remains accessible to a wide range of typists. Ultimately, whichever switch you choose, you can expect a satisfying typing experience as they both aim to provide comfort without veering too far in character or sound.
Conclusion
To conclude, when deciding between the HMX FJ400 linear switch and the Haimu Neo White linear switch, consider your typing preferences and environment. If you gravitate towards a balanced sound profile and are looking for a versatile switch suitable for both work and play, the FJ400 is an excellent choice. This switch offers a comfortable typing experience with a medium bottom-out force, making it an ideal option for those who type extensively or engage in casual gaming without overwhelming sound or feel. On the other hand, if you prefer a smoother actuation with slightly less total travel and appreciate a typing experience that feels mildly refined, the Neo White is tailored for you. This switch's neutral sound profile and gentle characteristics will offer a pleasant experience whether you're typing or gaming, making it suitable for any setting. Ultimately, your decision should be guided by whether you prioritize a more balanced, all-around switch or one that emphasizes smoothness and subtlety in its keystrokes.
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