HMX FJ400 vs. Outemu Cold Plum

Overview

When it comes to the world of mechanical keyboards, the choice of switches can significantly impact both typing experience and overall satisfaction. The HMX FJ400, a linear switch from the HMX Film switch lineup, is renowned for its balanced sound profile, making it an excellent option for those who seek a versatile and consistent keystroke. Its moderate actuation force allows for comfortable typing without sacrificing responsiveness, catering well to gamers and typists alike. In contrast, the Outemu Cold Plum switches are celebrated for their thocky sound profile and fully nylon construction, which adds a layer of delight to each keystroke. Enthusiasts often gravitate towards these switches for their smooth keystrokes and satisfying auditory feedback, creating an engaging tactile experience. While both switches are linear and provide smooth operation, the FJ400 leans toward a more universal appeal, while the Cold Plum is tailored for those who prioritize a distinct sound and feel. 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

Outemu Cold Plum Linear

$3.50

$3.29 per 10

$3.10 per 10

Learn moreLearn more

Housing materials

When comparing the HMX FJ400 and the Outemu Cold Plum switches, one will notice that while both use nylon for their bottom housing, they differ in the material of the top housing. The FJ400 employs POM (Polyoxymethylene) for its top housing, while the Cold Plum utilizes nylon. The POM material in the FJ400 is known for generating a unique sound profile that leans toward the deeper and more muted side, offering a distinctive auditory experience. On the other hand, the nylon top housing of the Cold Plum is characterized by its ability to create a similarly rich sound profile but with a slightly different character that still aligns with the classic deep and full essence attributed to nylon switches.

The shared use of nylon for the bottom housing in both switches underlines their inclination towards producing a deeper and fuller sound. This is significant, as the bottom housing's material is crucial in shaping the bottom-out sound and feel when a key is pressed. With both switches using nylon in this capacity, users can expect a sound profile that is duller and rounder, which emphasizes the soft and accommodating nature of nylon. This similarity ensures that regardless of the top housing differences, the foundational sound qualities will resonate closely when typing, reinforcing the warmth and depth associated with nylon.

While the FJ400 and Cold Plum switches offer similar sound characteristics at the bottom due to both using nylon, the variances in their top housings will impart unique auditory experiences when releasing the key. The POM top on the FJ400 contributes to a distinctive sound signature that could be perceived as more refined or crisp compared to the slightly softer tone generated by the nylon in the Cold Plum. Ultimately, both switches allow users to achieve a pleasing typing experience, but the nuances in materials highlight the diverse possibilities in switch design that can cater to particular preferences in sound and feel.

Weight

When comparing the HMX FJ400 linear switch to the Outemu Cold Plum linear switch, there are notable differences in both 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 switch. In contrast, the Cold Plum requires a slightly heavier actuation force of 60 grams and a bottom out force of 70 grams, placing it in the medium-heavy range. Consequently, the FJ400 is the lighter option, making it more suitable for users who prefer extended typing sessions or lighter key presses, while the Cold Plum, with its heavier forces, may appeal more to those who enjoy a more substantial typing experience with a firmer push feel. Therefore, if someone prefers a keyboard for work or long gaming sessions, the FJ400 would be favorable, whereas those seeking a more resistant keystroke might lean towards the Outemu Cold Plum.

Travel distance

When comparing the travel distances of the HMX FJ400 linear switch and the Outemu Cold Plum linear switch, notable differences emerge. The HMX FJ400 features a travel distance of 3.8 mm, while the Outemu Cold Plum has a slightly shorter travel distance of 3.3 mm. This makes the Cold Plum the more responsive option, appealing to gamers who favor quicker reactions. Conversely, the FJ400, with its longer travel distance, may offer a more substantial feel, providing users who appreciate deeper keystrokes with a satisfying experience. Ultimately, your preference will depend on whether you value rapid response times or a more pronounced depth in keypresses.

Price comparison

Typing experience

When it comes to sound, the HMX FJ400 switch is known for its balanced sound profile, which strikes a nice equilibrium that appeals to a broad range of users. This means it is neither overly loud nor completely muffled, making it suitable for various environments, from quiet offices to bustling gaming setups. In contrast, the Outemu Cold Plum switch is celebrated for its unique thocky sound profile, which produces a distinct and satisfying auditory feedback during typing. The fully nylon construction contributes to this quality, making every keystroke feel more pronounced and enjoyable. Ultimately, while both switches have their auditory strengths, the FJ400 offers a more neutral sound experience, whereas the Cold Plum provides a more character-rich thock.

In terms of feel, the FJ400 offers a smooth keystroke that many users find comfortable for long typing sessions. It strikes a fine balance between responsiveness and ease of use, allowing for efficient typing without tiring the fingers too quickly. On the other hand, the Cold Plum's feel is enhanced by its smoothness as well but takes it a step further with a tactile feedback that adds an extra layer of satisfaction during use. The combination of smooth action and thocky sound creates a deeply engaging typing experience that keyboard enthusiasts often seek. Both switches offer smooth key presses, but the Cold Plum enhances that experience with additional tactile enjoyment.

In conclusion, while the HMX FJ400 and Outemu Cold Plum switches each present unique qualities, they cater to different preferences among keyboard enthusiasts. The FJ400’s balanced sound and smooth feel make it a versatile option, while the Cold Plum's thocky sound and satisfying tactile feedback create an exciting typing experience. Ultimately, the choice between the two depends on personal preference; users will find both switches capable of delivering a pleasurable typing experience, albeit in slightly different ways.

Conclusion

To conclude, both the HMX FJ400 and the Outemu Cold Plum linear switches have their unique characteristics that cater to different preferences and use cases. If you're looking for a switch that strikes a balance between medium resistance and a pleasant, balanced sound profile, the FJ400 is an excellent choice. Its 58-gram bottom-out force provides a comfortable experience for those who type or game for extended periods, making it suitable for a variety of tasks from office work to casual gaming. On the other hand, if you prefer a switch with a more pronounced tactile feedback and a heavier feel, the Outemu Cold Plum might pique your interest. With its 70-gram bottom-out force and thocky sound, it caters to enthusiasts who crave a satisfying auditory experience along with a robust keystroke. Ultimately, the choice boils down to whether you prioritize a smooth, balanced typing experience or a more substantial, engaging response with auditory satisfaction. Consider your personal preferences and primary use—this will guide you toward the switch that complements your typing style best.

Mentioned in this article

HMX FJ400 Linear

$3.50

$3.29 per 10

Learn more

Outemu Cold Plum Linear

$3.10 per 10

Learn more