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Akko Fairy vs. HMX FJ400

An in-depth look at the Akko Fairy and the HMX FJ400 switches—which one is the best fit for you?

Overview

When it comes to mechanical keyboard switches, the Akko Fairy and the HMX FJ400 both offer linear experiences, yet they cater to different user needs and preferences. The Akko Fairy stands out with its refined factory-applied lubrication, delivering a smooth and whisper-quiet typing experience that is perfect for office environments. With a medium weight that strikes an ideal balance between resistance and ease of actuation, the Fairy switch is designed for comfortable, prolonged use without causing finger fatigue. Its subtle and muted characteristics contribute to maintaining a focused and productive workspace. On the other hand, the HMX FJ400, positioned as a middle ground in the HMX Film switch lineup, brings a balanced sound profile to the table, appealing to users who appreciate auditory feedback without being overwhelming. While both switches are excellent choices for linear switch enthusiasts, the Fairy is tailored more for a serene work atmosphere, whereas the FJ400 offers a more versatile sound experience. 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

50g

Bottom-out force

60g

Bottom-out force

58g

Pre-travel

2.00 mm

Pre-travel

2.00 mm

Total travel

3.30 mm

Total travel

3.80 mm

Factory lubed

Yes

Factory lubed

Yes

Stem construction

Standard

Stem construction

Standard

Stem material

POM

Stem material

T2

Top housing material

Nylon

Top housing material

POM

Bottom housing material

Nylon

Bottom housing material

Nylon

Mount type

PCB (5-pin)

Mount type

PCB (5-pin)

Spring

17mm stainless steel spring

Spring

22mm single-stage spring

Housing materials

When comparing the housing materials of the Akko Fairy and the HMX FJ400, notable similarities and differences emerge that significantly affect user experience. The top housing of the Akko Fairy is constructed from nylon, known for producing a deeper and fuller sound profile due to its softer composition. This quality allows the nylon top to absorb sound effectively, which results in a duller and rounder auditory experience when typing. Conversely, the FJ400 features a POM top housing, which is also designed to emit a unique sound profile but leans towards a deeper and more muted tone. This indicates that while both housing types aim for a satisfying audio experience, the choice of materials contributes to differing sound characteristics, with POM potentially offering a smoother typing experience.

On the other hand, the bottom housings of both models share a commonality, as both utilize nylon material. This presents an advantageous situation, as the nylon bottom in both cases promotes a fuller sound profile, retaining the characteristics associated with softer plastics. The replication of housing materials in the bottom section means that users will encounter similar auditory feedback in terms of bottom-out sound and feel when typing. In this regard, the Akko Fairy and the FJ400 can deliver comparable sensations and tones due to both implementing nylon in the bottom housing, maintaining continuity in the sound profile despite their differing top housings.

Overall, the contrast in top housing materials provides each switch with distinct sound profiles. Users who prefer the deeper and fuller sound of nylon may gravitate towards the Akko Fairy, while those seeking a more muted tone might favor the HMX FJ400. Regardless of the top housing differences, both switches benefit from their nylon bottoms, resulting in a consistent bottoming-out experience that emphasizes the qualities that nylon brings to the tactile sensation. Thus, while the sound profiles may diverge at the top, the shared bottom housing material ensures a level of familiarity in the overall typing experience.

Weight

When comparing the Akko Fairy linear switch and the HMX FJ400 linear switch, both feature the same actuation force of 50 grams, making them equally responsive when it comes to initiating a keystroke. However, their bottom out forces differ slightly: the Fairy has a bottom out force of 60 grams, while the FJ400 is marginally lighter at 58 grams. This difference means that while both switches provide a similar feel during actuation, the Fairy will require a bit more force to fully engage, which some users may prefer for a more substantial typing experience. For those looking for a lighter switch overall, the FJ400 is the better option, offering a slightly less forceful bottom out. Ultimately, both switches cater to medium force preferences, but the choice between them will hinge on whether a user prioritizes a heavier feel with the Fairy or a slightly lighter experience with the FJ400.

Travel distance

When comparing the travel distances of the Akko Fairy linear switch and the HMX FJ400 linear switch, there is a clear distinction between the two. The Akko Fairy features a travel distance of 3.3 mm, while the HMX FJ400 offers a longer travel distance of 3.8 mm. Consequently, if you're looking for a switch that provides quicker response times, the shorter 3.3 mm travel of the Fairy may be more appealing, especially for gamers who thrive on sensitivity and speed. Conversely, the FJ400's 3.8 mm travel distance caters to those who prefer a more pronounced key press, offering a sense of depth that some users find more satisfying. Therefore, the Akko Fairy linear switch is the shorter option, promoting responsiveness, while the HMX FJ400 linear switch is the longer choice, ideal for those who appreciate a more substantial key feel.

Price comparison

Which switch is more bang for your buck?

The Akko Fairy has an MSRP of $4.22 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the Fairy for $3.10.

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.

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

In terms of sound, the Akko Fairy switches are characterized by a muted and neutral profile that ensures a softer and quieter typing experience. This makes them particularly well-suited for office environments where minimizing noise is essential. Conversely, while the sound profile of the HMX FJ400 is described as a balanced sound, further specifics about its acoustic qualities are not available. However, as sound is influenced by the keyboard's design and keycap materials, users may find that the FJ400 also provides a pleasant auditory experience.

When it comes to feel, the Fairy switches shine with their polished, mild, and subtle characteristics. The factory-applied lubrication enhances the smoothness, allowing for effortless key travel that reduces friction and creates a sleek typing sensation. The mild and subtle resistance offers a gentle touch without any harshness, making extended typing sessions comfortable. On the other hand, specific descriptions of the FJ400 feel are not provided, leaving room for uncertainty regarding its tactile qualities compared to the Fairy.

Overall, both the Akko Fairy and HMX FJ400 linear switches cater to users seeking a refined and comfortable typing experience, specifically targeted at daily tasks like those in an office setting. The Fairy provides clarity on sound and feel, while the FJ400's balanced sound profile suggests it could also accommodate a range of preferences, though its tactile attributes remain unidentified. For newcomers, if you seek both quiet operation and a smooth feel, the Fairy appears to be a more reliable choice, while the FJ400 has the potential to perform similarly, but with less clarity on its exact qualities.

Conclusion

To conclude, when considering your choice between the Akko Fairy linear switch and the HMX FJ400 linear switch, it ultimately comes down to your specific needs and preferences. If you are seeking a switch that enhances your typing experience in an office setting or shared workspace, the Akko Fairy is likely the better option for you. Its factory-applied lubrication guarantees a smooth and polished feel while maintaining a muted sound profile, making it perfect for extended use without fatigue. The Fairy's 60-gram actuation force provides just the right amount of resistance, ensuring comfortable typing during long hours. On the other hand, if you are looking for a switch that strikes a balance in sound and feel without any overwhelming characteristics, the HMX FJ400 serves as a versatile choice. Although the actuation force is slightly lighter at 58 grams, it offers a more neutral experience that caters to both beginners and advanced users alike. In summary, if your environment requires minimal noise and a smoother tactile experience, go for the Akko Fairy, but if you're after a well-rounded option that allows for a more balanced sound profile, the FJ400 is your go-to.

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