HMX FJ400 vs. Outemu Lotus

Overview

When it comes to mechanical keyboard switches, the HMX FJ400 and the Outemu Lotus stand out as popular choices among enthusiasts, particularly for those who prefer linear options. The FJ400, known for its balanced sound profile, serves as a versatile middle ground in the HMX Film switch lineup, making it ideal for users who desire a smooth typing experience with less noise, perfect for both gaming and typing. On the other hand, while the Outemu Lotus lacks distinct characteristics widely recognized in the community, its appeal lies in its affordability and reliability, offering a dependable option for budget-conscious users who still want a satisfying linear feel. Both switches have their merits, with the FJ400 catering to those seeking a refined experience and the Lotus attracting users looking for practicality. 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 Lotus Linear

$3.50

$3.29 per 10

$3.10 per 10

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Housing materials

When comparing the housing materials of the HMX FJ400 and Outemu Lotus switches, we observe that both switches utilize different top housing materials but share the same material for their bottom housings. The FJ400 features a POM (Polyoxymethylene) top housing, known for creating a distinct sound profile that is deeper and more muted, providing a unique auditory experience. In contrast, the Lotus uses a nylon top housing which also delivers a deeper and fuller sound, but it tends to absorb more sound due to the inherent softness of nylon. This variance in the top housing materials indicates that while both switches might produce an enriched sound profile, the FJ400's use of POM will likely yield a slightly different tonal character compared to the Lotus's nylon casing.

Both the FJ400 and Lotus switches employ nylon for their bottom housings, lending them a similar sound signature grounded in depth and fullness. Since nylon is a classic material recognized for its sound-dampening properties, players can expect a comparable auditory experience in terms of muted and rounded sounds when bottoming out the keys. The softness of nylon absorbs sound more effectively than harder plastics, and as such, both switches will likely produce a consistent feel and sound response from the bottom housing, enhancing the overall typing experience for users.

The combined effects of having different top housings and identical bottom housings mean that there will be a clear distinction in the sound profiles when comparing the FJ400 and Lotus switches. While the FJ400's POM top housing emphasizes a more muted sound when releasing a key, the Lotus will produce a sound that is more rounded due to its nylon’s inherent qualities. However, since both utilize nylon on the bottom, the overall experience regarding bottoming out will be quite similar. This separation of top and bottom housing properties demonstrates how the materials can interact to influence the tactile sensations and auditory feedback, highlighting both the differences and similarities inherent in the FJ400 and Lotus switches.

Weight

When comparing the HMX FJ400 linear switch and the Outemu Lotus linear switch, notable differences emerge in both their actuation and bottom out forces. The FJ400 has an actuation force of 50 grams and a bottom out force of 58 grams, which puts it in the medium range, making it suitable for users who prefer a more substantial typing experience. In contrast, the Outemu Lotus boasts a lighter actuation force of 35 grams and a bottom out force of 50 grams, catering to those who favor a softer touch for extended typing or gaming sessions. Consequently, the FJ400 is the heavier of the two switches, offering a firmer response, while the Lotus’s lighter profile allows for increased comfort during prolonged use. These differences in actuation and bottom out forces contribute to the overall typing experience, allowing users to choose based on their personal preferences for switch weight and feel.

Travel distance

When comparing the travel distances of the HMX FJ400 linear switch and the Outemu Lotus linear switch, there is a notable difference. The FJ400 boasts a travel distance of 3.8 mm, while the Lotus features a slightly shorter travel distance of 3.3 mm. This means that if you favor a more responsive action, the Outemu Lotus would be the better choice due to its shorter travel distance, allowing for quicker key presses, which is often preferred by gamers. Conversely, the HMX FJ400 may appeal to those who appreciate a more substantial feel when typing, as its longer travel distance provides an added depth that some users find more satisfying. Overall, these differences cater to varying preferences, with the FJ400 offering a deeper experience and the Lotus enhancing speed and responsiveness.

Price comparison

Typing experience

The HMX FJ400 linear switch has a balanced sound profile that fits comfortably in the middle of the HMX Film switch lineup. This means that when typing, you can expect a sound that is neither too muted nor overly pronounced, making it an excellent choice for both office environments and home use where noise levels can be a concern. In contrast, the Outemu Lotus linear switch does not have a well-documented sound signature, leaving its acoustic characteristics somewhat ambiguous. It’s important to note that the overall sound of any switch can be influenced by factors like the keyboard plate material, case construction, and the type of keycaps used, making it essential to consider these in conjunction with the switches themselves.

When it comes to feel, the FJ400 is known for its smooth actuation, offering a consistent and enjoyable typing experience that’s often favored by typists who appreciate seamless keystrokes. On the other hand, the feel of the Outemu Lotus switch is not as well characterized, leaving potential users without clear guidance on its tactile feedback. Smoothness is typically appreciated in linear switches, and if the Lotus switch shares similarities with linear switch trends, it may provide a comparable typing comfort, though this remains uncertain without specific descriptions.

Overall, while the HMX FJ400 linear switch presents a well-defined sound and feel that makes it an appealing choice for newcomers, the Outemu Lotus linear switch lacks the same level of documentation, particularly in its auditory and tactile qualities. For those seeking consistent results, the FJ400 offers reliability in its balanced profile, while the Lotus switch might require more investigation or trial to determine its characteristics. If you prefer a known, balanced typing experience, the FJ400 serves as a solid option, whereas the Lotus may be a wildcard depending on individual preferences.

Conclusion

To conclude, your choice between the HMX FJ400 and the Outemu Lotus linear switch should ultimately hinge on your preferences for both feel and actuation force. If you appreciate a medium bottom-out force and are looking for a balanced sound profile, the HMX FJ400 would be a suitable option for you. This switch strikes a harmonious balance that can enhance your typing or gaming experience, making it ideal for those who prefer a tactile feel without being overly stiff. On the other hand, if you favor a lighter touch, the Outemu Lotus is your go-to switch with its 50-gram bottom-out force. This can be especially beneficial if you engage in fast-paced gaming or prolonged typing sessions where reduced fatigue is a priority. Additionally, while the Lotus doesn’t have a distinctive sound profile associated with it, its light actuation can cater to users who favor a more subtle acoustic experience. Overall, evaluate what matters most in your usage—whether it's the balance and stability of the FJ400 or the effortless keystrokes of the Lotus—to make the best decision for your mechanical keyboard setup.

Mentioned in this article

HMX FJ400 Linear

$3.50

$3.29 per 10

Learn more

Outemu Lotus Linear

$3.10 per 10

Learn more