HMX FJ400 vs. HMX Lucky
An in-depth look at the HMX FJ400 and the HMX Lucky switches—which one is the best fit for you?
Overview
When it comes to choosing the perfect linear switch for your mechanical keyboard, the HMX FJ400 and the HMX Lucky both offer unique attributes that cater to different preferences. The FJ400 is celebrated for its balanced sound profile, making it an excellent middle-ground option within the HMX Film switch lineup, ideal for users who appreciate a harmonious auditory experience without distractions. On the other hand, the HMX Lucky switches stand out with their softer and glittery nylon housings, providing a lightweight and neutral typing experience that many find deeply satisfying and comfortable for long typing sessions. While both switches are linear and excel in delivering smooth keystrokes, the FJ400 leans towards a more traditional sound and feel, whereas the Lucky offers a distinctly softer touch that enhances overall typing pleasure. 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
37g
Bottom-out force
58g
Bottom-out force
43g
Pre-travel
2.00 mm
Pre-travel
2.00 mm
Total travel
3.80 mm
Total travel
3.80 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 HMX FJ400 and the HMX Lucky both exhibit unique characteristics in their housing materials that influence their overall sound profiles. The FJ400 features a POM (Polyoxymethylene) top housing, known for producing a distinct and muffled sound profile with deeper tones. This unique quality is attributed to POM's denser structure compared to common plastics, allowing it to create a more muted auditory experience. In contrast, the Lucky incorporates a nylon top housing, a classic choice that similarly facilitates a deeper and fuller sound. However, nylon's relatively softer properties absorb sound more effectively than the harder POM material, resulting in a rounder sound profile. While both switches aim for a deeper audio experience, the difference in their top housing materials sets them apart in terms of sound texture and impact.
When examining the bottom housings, both the FJ400 and Lucky utilize nylon, which further consolidates their sound output. Both switches benefit from nylon's ability to create a fuller sound profile due to the material's absorbent qualities. This means that while the top housings differ, the nylon bottom housing in both designs will contribute to a similar auditory depth. The material choice here creates a level of consistency in the typing experience, segregating how each housing type influences the perceived sound. In essence, both housing sets deliver a cohesive audio experience, but with distinct variations arising from their differing top materials.
Ultimately, the interaction between the top and bottom housings plays a critical role in overall performance. For the FJ400, the POM top housing confers a particular auditory signature that complements the nylon bottom housing's acoustic properties, ultimately producing a well-rounded sound experience. Meanwhile, the Lucky manages to maintain a similar audio depth thanks to both housings being composed of nylon. As such, users can anticipate a relatively comparable typing experience in terms of sound and feel, though subtle differences may arise from the contrasting materials in their top housings. Overall, both designs highlight how housing materials can significantly shape the characteristics of mechanical switches while still allowing for a satisfying user experience.
Weight
When comparing the HMX FJ400 linear switch to the HMX Lucky linear switch, there are notable differences in both actuation force and bottom out force. The FJ400 features an actuation force of 50 grams and a bottom out force of 58 grams, making it suitable for those who prefer a more substantial typing experience due to its medium weight. In contrast, the Lucky switch offers a lighter touch, with an actuation force of just 37 grams and a bottom out force of 43 grams. This lighter weight makes the Lucky switch a better option for users who prioritize longer typing sessions or extended gaming due to reduced finger fatigue. Therefore, while the FJ400 provides a firmer response suited for users who enjoy tactile feedback from their keystrokes, the Lucky switch caters to those looking for a more effortless typing experience. Overall, the FJ400 is the heavier switch, while the Lucky switch is the lighter, facilitating different preferences among users.
Travel distance
Both the HMX FJ400 linear switch and the HMX Lucky linear switch feature an identical travel distance of 3.8 mm. This means that when pressing either switch, you will experience the same key travel length from top to bottom, resulting in similar tactile feedback and actuation feel. Because they share the same travel distance, users can expect a comparable response when engaging either switch, making both options equally suitable for those who prefer a consistent typing 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 HMX Lucky has an MSRP of $3.50 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the Lucky for $2.99.
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 boasts a balanced sound profile, making it a versatile choice for users seeking a pleasant auditory experience while typing or gaming. This characteristic positions it as a middle ground in the HMX Film switch lineup, appealing to those who prefer a less pronounced sound without sacrificing clarity. In contrast, the HMX Lucky switch, with its softer and glittery nylon housings, is likely to deliver a distinctive sound that complements its lightweight design, exuding a unique charm. Ultimately, while both switches produce satisfying sounds, the specific auditory experience can be influenced by additional components such as the keyboard board and keycap choice.
When it comes to feel, the FJ400 is celebrated for its well-rounded typing experience, striking a balance that suits a range of preferences from casual typists to gaming enthusiasts. Its consistent linear feedback lends an enjoyable smoothness as you press down, promoting an engaged yet comfortable typing action. The HMX Lucky switch, on the other hand, provides a deeply satisfying typing experience that leans towards a more neutral sensation. This can be especially appealing for users who prioritize a seamless and effortless depression of keys. Although both switches offer a tactile and smooth experience, the specific nuances of how they engage could differentiate their suitability based on individual user preferences.
In summary, if you're considering either the HMX FJ400 or the HMX Lucky linear switch, you'll find that they both have their unique strengths. The FJ400 presents a balanced sound profile and a well-rounded feel, making it adaptable for various uses, while the Lucky switch introduces a softer sound and a pleasantly neutral typing experience. Depending on your priorities—whether it be sound or feel—you can look forward to satisfying performance from either option, as both are designed to enhance your mechanical keyboard experience.
Conclusion
To sum up, when deciding between the HMX FJ400 and the HMX Lucky linear switches, your personal preferences and typing style should guide your choice. If you seek a balanced typing experience with a medium bottom out force of 58 grams, the FJ400 is an excellent fit. Its sound profile is well-rounded, making it suitable for a variety of environments whether you’re in an office or gaming at home. The FJ400 also provides a satisfying tactile feel without being overly heavy, ideal for both typists and gamers who appreciate a bit of feedback during fast-paced actions. Conversely, if you prefer a lighter touch, the HMX Lucky with its lower bottom out force of 43 grams may be the better option for you. Its lightweight design makes it perfect for long typing sessions or casual gaming without straining your fingers. The Lucky’s softer and glittery nylon housing enhances the overall typing experience, creating a smooth feel and a neutral sound that can be delightful for those who appreciate subtler auditory feedback. Ultimately, your choice hinges on whether you favor a medium, balanced experience or a light and smooth touch.
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