HMX FJ400 vs. Gateron Mini i
An in-depth look at the HMX FJ400 and the Gateron Mini i switches—which one is the best fit for you?
Overview
When it comes to choosing mechanical keyboard switches, the HMX FJ400 and Gateron Mini i offer distinct yet appealing options that cater to different typing preferences and environments. The FJ400, a linear switch, is recognized for its balanced sound profile, making it an excellent choice for those seeking a smoother, uninterrupted keystroke experience that allows for rapid typing without the distraction of tactile feedback. In contrast, the Gateron Mini i, categorized as a tactile switch, provides gentle tactile feedback with each keystroke while maintaining a fairly muted sound profile. This makes the Mini i especially suitable for office settings, where a comfortable typing experience is essential over long hours, and the subtle feedback prevents distractions in a professional environment. While the FJ400 is ideal for users who prioritize speed and smoothness, the Mini i appeals to those who appreciate a bit of tactile engagement without being overly noisy. 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
40g
Bottom-out force
58g
Bottom-out force
50g
Pre-travel
2.00 mm
Pre-travel
1.40 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-stage spring
Housing materials
When comparing the HMX FJ400 and the Gateron Mini i, one of the most standout differences lies in their top housing materials. The FJ400 employs POM (Polyoxymethylene) for its top housing, which is known for producing a pleasing and unique sound profile that is deeper and more muted. This characteristic is attributed to POM's density and hardness, which contribute to a sound that is less resonant compared to softer plastics. On the contrary, the Gateron Mini i utilizes nylon for its top housing. This classic material is softer and absorbs more sound, resulting in a deeper, fuller auditory experience. Consequently, while the FJ400 prioritizes a specific muted tonal quality, the Mini i offers a rounded and warmer sound, showcasing how different materials can manipulate the keypress acoustic feedback in distinct ways.
Both the FJ400 and Mini i utilize nylon for their bottom housings, which highlights some similarities in terms of sound profile. The nylon bottom housing in both switches contributes to a deeper and fuller sound, as the material's softer nature helps to absorb sound waves, mitigating higher frequencies. This shared design element implies that both switches will produce a comparable auditory experience during key presses, particularly when hitting the bottom-out point. Thus, despite the top housings differing in material—one being POM and the other nylon—both switches can achieve a similar resonant quality at the bottom of the switch, where the effects of the nylon material resonate strongly.
In conclusion, while the HMX FJ400 and Gateron Mini i differ in their top housing materials—POM versus nylon—the consistent use of nylon in the bottom housing creates a shared sound experience when bottoming out. Each switch will exhibit unique characteristics due to their top housing materials, with the FJ400 leaning towards a muted tone and the Mini i displaying a fuller roundness. Nevertheless, at the moment of bottoming out, users can expect a similar auditory response from both switches, showcasing how the interplay of materials can lead to a nuanced typing experience while still allowing for certain commonalities.
Weight
When comparing the HMX FJ400 linear switch and the Gateron Mini i tactile switch, there are notable differences in their actuation and bottom out forces. The FJ400 features an actuation force of 50 grams and a bottom out force of 58 grams, categorizing it as a medium-weight switch. In contrast, the Mini i has a lighter actuation force of 40 grams and a bottom out force of 50 grams. This means that while the FJ400 provides a stronger tactile feedback and a more substantial typing experience, the Mini i is more suitable for users who prefer a lighter touch, allowing for extended typing sessions without fatigue. Overall, if one is seeking a balance between responsiveness and comfort, the Mini i would be advantageous for lighter use, whereas the FJ400 might appeal to those who favor a heavier push feel.
Travel distance
When comparing the travel distance of the HMX FJ400 linear switch and the Gateron Mini i tactile switch, there is a discernible difference that may affect user preference. The FJ400 features a travel distance of 3.8 mm, while the Mini i has a slightly shorter travel distance of 3.4 mm. This means that the FJ400 offers a deeper key press, which some users may find more satisfying and traditional, particularly those who prefer a hearty feel while typing. On the other hand, the Mini i's shorter travel distance caters to gamers and users who favor quicker response times and a more immediate actuation. Ultimately, if you gravitate towards a deeper and potentially more robust key press, the FJ400 is the preferred choice; however, if you appreciate faster key engagement, the Gateron Mini i would be more suitable.
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 Mini i comes in at $6.00 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
When it comes to sound, the HMX FJ400 is known for its balanced sound profile, which strikes a harmonious medium that isn't overly intrusive while still providing satisfying auditory feedback. This makes it versatile for various environments, from personal use to shared spaces. In contrast, the Gateron Mini i offers a fairly muted sound profile that prioritizes a quiet typing experience, perfect for office settings where silence is often essential. Both switches, being designed with different intentions, contribute to distinctive sound environments, making the FJ400 a more versatile choice for those who may require more audible feedback, while the Mini i caters to those seeking a subdued typing experience.
Regarding feel, the FJ400 is characterized as a middle-ground switch, offering a more moderate tactile feedback that appeals to a wide range of users. Its responsiveness is harmonized to provide a comfortable typing experience, which can accommodate various typing styles. On the other hand, the Gateron Mini i switches boast several tactile characteristics, including a bouncy sensation and easy actuation, making them feel lively and responsive. They provide a gentle resistance and a generally mild experience, encouraging prolonged typing without fatigue. The Mini i also features a subtle tactile feedback that doesn’t overwhelm, making it suitable for any setting where a quieter interaction is desirable.
In summary, both the HMX FJ400 and Gateron Mini i switches present unique offerings catered to different typing environments. While the FJ400 excels in providing a balanced auditory experience with moderate tactile feedback, the Mini i caters specifically to those looking for a quieter, yet responsive switch with gentle tactility. Ultimately, whether you prioritize sound or feel, both switches can deliver satisfactory typing experiences tailored to your specific needs, making them excellent choices for newcomers to the mechanical keyboard community.
Conclusion
To sum up, choosing between the HMX FJ400 linear switch and the Gateron Mini i tactile switch ultimately depends on your typing preferences and the environment in which you'll be using your keyboard. If you value a balanced sound profile and require a medium actuation force, the FJ400 might be your ideal choice. Its slightly firmer resistance can enhance your typing experience, providing a satisfying yet unobtrusive feedback that encourages longer typing sessions without fatigue. On the other hand, if your priority lies in a lighter, more comfortable typing experience—especially during extensive office work—the Gateron Mini i is an excellent option. With its easy-to-press and bouncy feel, it is designed to minimize finger strain, while its subtle tactility allows for enjoyable feedback without overwhelming auditory distractions. Ultimately, if you prefer a more tactile response with a focus on efficiency and quietness in a professional setting, the Mini i shines brightly, whereas the FJ400 serves best for those who appreciate an even keel when typing, with a balanced performance that caters to a variety of use cases.
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