HMX FJ400 vs. HMX Poro

Overview

When it comes to mechanical keyboard switches, the choice between the HMX FJ400 and the HMX Poro can significantly influence your typing and gaming experience. The HMX FJ400 stands out as a balanced option within the HMX Film switch lineup, delivering a harmonious sound profile that many users appreciate for its versatility. On the other hand, the HMX Poro is designed for those who seek a uniquely pleasurable tactile experience; its meticulously lubricated construction allows for silky smooth keystrokes, while its poppy and clacky sound profile, enhanced by an ultra-light actuation force, appeals to enthusiasts who enjoy a bit of auditory feedback. While both switches are linear and provide smooth key presses, the FJ400 focuses on a balanced performance perfect for a variety of tasks, whereas the Poro leans toward a more playful and satisfying typing 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

HMX FJ400 Linear

HMX Poro Linear

$3.50

$3.29 per 10

$3.50

$2.99 per 10

Learn moreLearn more

Housing materials

The HMX FJ400 and HMX Poro exhibit distinct differences in their top housing materials, showcasing the impact of material selection on sound production and user experience. The FJ400 utilizes POM for its top housing, a material known for its ability to create a unique sound profile that is deeper and relatively more muted. In contrast, the Poro opts for nylon, a classic choice that also delivers a deeper and fuller sound but does so by absorbing more sound, resulting in a duller and rounder auditory experience. Therefore, while both keyboards aim for a rich sound, they employ different methodologies—POM enhances a unique subtlety, while nylon ensures a more enveloping acoustic quality.

When we turn our attention to the bottom housings of the two models, we see a point of similarity. Both the FJ400 and Poro utilize nylon for their bottom housing. This shared material contributes to creating a deeper sound profile, as nylon's softness allows it to absorb sound more effectively than harder plastics. In terms of user experience, the bottom housing significantly influences the feel and sound when the key bottoms out, meaning that both switches will provide a similar tactile feedback and auditory response during this action. This foundational similarity gives users a consistent experience in how the switches respond upon full actuation.

In summary, the primary contrast between the HMX FJ400 and HMX Poro lies in their top housing materials, which affects the nuances of sound produced during key release. The FJ400's POM top housing lends a unique character to the sound, while the Poro's nylon top allows for a more classic and round auditory experience. However, the use of nylon in both bottom housings ensures that the fundamental tactile and acoustic qualities remain aligned, providing a consistent performance during key presses for both models. Consequently, while users can expect different sound experiences from the two switches, the similarity in their bottom housings guarantees that they will still deliver satisfying results in terms of feel and depth of sound.

Weight

When comparing the actuation and bottom out forces of the HMX FJ400 and HMX Poro linear switches, distinct differences emerge that cater to varying user preferences. The FJ400 features an actuation force of 50 grams and a bottom out force of 58 grams, making it a medium-weight switch that provides a more substantial typing experience. In contrast, the Poro switch is lighter, boasting an actuation force of 45 grams and a bottom out force of 50 grams, thus making it ideal for users who favor a lighter touch for extended typing sessions or gaming marathons. While both switches provide a satisfying tactile feedback, the heavier FJ400 may appeal to those who appreciate a more pronounced push feel, whereas the lighter Poro is suited for those seeking effortless keystrokes. Overall, the difference in their forces suggests that the FJ400 will provide a firmer typing experience compared to the more delicate and responsive feel of the Poro.

Travel distance

When comparing the travel distances of the HMX FJ400 linear switch and the HMX Poro linear switch, it becomes clear that the FJ400 offers a slightly longer travel distance of 3.8 mm, whereas the Poro measures at 3.7 mm. This marginal difference suggests that if responsiveness is a priority, the Poro could be preferable for gamers seeking quicker actuation times, given its shorter distance. However, for those who prefer a more pronounced and deliberate keystroke, the FJ400, with its greater depth, may provide a more satisfying experience. Overall, while both switches offer relatively short travel distances compared to traditional options, the FJ400 stands out as the option for users who favor a deeper feel, while the Poro caters to those who prioritize speed.

Price comparison

Typing experience

When it comes to sound, the HMX FJ400 offers a balanced profile that aims to please without overwhelming the user. This makes it a versatile option suitable for a variety of environments, whether you're in a quiet office or a more boisterous gaming setup. In contrast, the HMX Poro is distinguished by its distinctly clacky character. Users can expect a sharp and snappy sound reminiscent of brighter and more percussive notes when typing, contributing to a more engaging auditory experience. The sound produced by each switch will, of course, vary depending on the keyboard design, materials used, and keycap selection.

The feel of the FJ400 is characterized by its general linear action, which, while not explicitly defined, suggests a smooth and consistent keypress experience. Meanwhile, the HMX Poro switches excel in providing a dynamic sensory experience. They are bouncy, delivering delightful elastic feedback that enhances each keystroke. The creamy texture of the Poro adds a buttery smoothness, allowing for a luxurious typing experience that glides effortlessly across the board. Furthermore, the feathery characteristic of the Poro contributes to a light touch with minimal exertion required, which is particularly advantageous during extended typing sessions.

In conclusion, while both the HMX FJ400 and HMX Poro linear switches are designed to offer a satisfying typing experience, they cater to different preferences. The FJ400 provides a solid and balanced sound along with a smooth linear feel, ideal for users seeking reliability and versatility. On the other hand, the Poro captivates with its clacky sound profile and a more tactile sensation, delivering bouncy and buttery keystrokes that make typing engaging and enjoyable. Depending on your priorities between sound and tactile feedback, either switch could serve you well, though your choice may ultimately come down to the specific typing experience you seek.

Conclusion

To conclude, the choice between the HMX FJ400 and the HMX Poro linear switches largely depends on your personal preferences and use cases. If you prefer a balanced typing experience with a medium bottom-out force of 58 grams, the FJ400 might be your go-to switch. It’s an excellent choice if you're looking for a versatile option that can handle both typing and gaming with a sound profile that strikes a middle ground, providing a satisfying auditory feedback without overpowering the experience. In contrast, if you’re drawn to lighter, more effortless keystrokes, the HMX Poro is the ideal switch for you. With its 50-gram actuation force, these switches offer a uniquely silky, bouncy feel that can reduce finger fatigue during long hours of typing or gaming. Their clacky sound adds an additional layer of enjoyment, making each keystroke a pleasant experience. Overall, consider what aspects matter most to you—balance and feedback with the FJ400 or the smooth, lightweight efficiency offered by the Poro—when making your decision.

Mentioned in this article

HMX FJ400 Linear

$3.50

$3.29 per 10

Learn more

HMX Poro Linear

$3.50

$2.99 per 10

Learn more