HMX FJ400 vs. Outemu Lime
An in-depth look at the HMX FJ400 and the Outemu Lime switches—which one is the best fit for you?
Overview
When it comes to mechanical keyboards, the choice of switches can significantly influence your typing experience, and two popular options to consider are the HMX FJ400 and the Outemu Lime. The FJ400 is a linear switch that stands out in the HMX Film lineup for its balanced sound profile, making it an excellent choice for users who prefer smooth key presses without the interruption of tactile feedback. Its linear nature allows for rapid key presses, which is especially beneficial for gamers looking for speed and precision. On the other hand, the Outemu Lime is a tactile switch that offers a unique typing experience characterized by its lightweight feel and subtle tactility. This combination makes it ideal for those who appreciate tactile feedback but want a smoother, quieter response. Each switch has its strengths: choose the FJ400 for a straightforward, uninterrupted typing experience or the Lime for a gentle tactile sensation with a feathery touch. However, let's dive in a bit deeper beyond generalities so you can best decide on the right switch for you.
By the numbers
Technical specifications
Actuation force
50g
Actuation force
35g
Bottom-out force
58g
Bottom-out force
45g
Pre-travel
2.00 mm
Pre-travel
1.80 mm
Total travel
3.80 mm
Total travel
3.30 mm
Factory lubed
Yes
Factory lubed
Yes
Stem construction
Standard
Stem construction
Partial box
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
Stainless steel
Housing materials
The housing materials of the HMX FJ400 and Outemu Lime switches present an interesting comparison in terms of their sound characteristics and overall performance. The FJ400 features a POM top housing, which contributes to a unique sound profile described as deeper and more muted. In contrast, the Outemu Lime utilizes nylon for its top housing, a material recognized for its classic sound profile that is similarly deep and fuller. While both switches produce a desirable sound quality, the FJ400's POM top offers a different tonal texture, likely resulting in slight variations in acoustic responsiveness compared to the nylon housing of the Lime. This indicates that while both switches may aim for a rich auditory experience, their differing materials could yield unique auditory nuances.
Delving deeper into the bottom housings, both the FJ400 and Outemu Lime utilize nylon, which consistently provides a deeper sound profile. With nylon recognized as a softer plastic, both switches share the characteristic of sound absorption that leads to a duller and rounder sound. Given that the bottom housing significantly impacts the bottom-out sound and feel when pressing the key, it is evident that both switches will have a very similar auditory experience at this point of actuation. Regardless of the top housing material differences, the shared nylon bottom housing ensures that when one bottoms out while typing or gaming, the experience remains consistently satisfying across both switches.
In summary, while the HMX FJ400 and Outemu Lime share similarities in their bottom housing materials, leading to comparable auditory experiences, their distinct top housing materials create nuances in their overall sound profiles. The contrast between the POM top of the FJ400 and the nylon top of the Lime offers users different tactile and auditory sensations. Ultimately, users can expect a rich sound experience from both switches, but those who prioritize the subtleties of sound may find it worthwhile to experiment with each switch to determine their preferred auditory characteristics.
Weight
When comparing the HMX FJ400 linear switch and the Outemu Lime tactile switch, there are notable differences in both actuation and bottom out forces. The FJ400 has a medium actuation force of 50 grams and a bottom out force of 58 grams, making it suitable for those who prefer a more substantial typing experience. In contrast, the Outemu Lime switch is much lighter, with an actuation force of just 35 grams and a bottom out force of 45 grams. For typists and gamers who favor lighter switches, the Lime offers an easier keystroke, which can help reduce fatigue during long sessions. Ultimately, those who enjoy a heavier feel should gravitate toward the FJ400, while those preferring a softer touch would find the Lime more appealing. Thus, the HMX FJ400 is the heavier option, whereas the Outemu Lime is the lighter choice in this comparison.
Travel distance
When comparing the travel distances of the HMX FJ400 linear switch and the Outemu Lime tactile switch, it is evident that the FJ400 has a longer travel distance of 3.8 mm, while the Lime comes in at a shorter 3.3 mm. This difference indicates that the FJ400 may provide a more substantial and hearty feel when pressed, catering to those who appreciate deeper key travel. On the other hand, the Outemu Lime's shorter travel distance allows for quicker actuation, which can be particularly advantageous for gamers seeking rapid response times. Ultimately, your preference for switch type will determine which travel distance suits your needs; opt for the FJ400 if you prefer a more pronounced keypress, or choose the Lime for a more responsive experience.
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 Outemu Lime comes in at $3.40 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
In the realm of sound, the HMX FJ400 switch is recognized for its balanced sound profile, making it versatile for various typing environments. Whether at home or in the office, its sound won't be overly harsh or distracting, resulting in a pleasant auditory experience. In contrast, the Outemu Lime switch presents a more muted and neutral sound signature, characterized by its soft, quieter output. This muted quality significantly reduces the typical clacking noise associated with mechanical keyboards, making it suitable for shared spaces. Both switches provide an unobtrusive sound characteristic, ideal for users who might be sensitive to noise or work in quieter settings.
When it comes to feel, the FJ400 offers a smooth typing experience, though the specifics of its tactile feedback are less defined. The Lime switch, however, is notable for its lightweight and feathery nature, establishing a typing experience that is gentle and requires minimal physical effort. With descriptors such as mild and subtle, the Lime excels in providing comfort during extended typing sessions, as its gentle actuation force mitigates finger fatigue. Furthermore, the polished feel of the Lime makes each keystroke fluid, enhancing overall typing satisfaction. Together, these factors contribute to a more relaxed typing environment.
In conclusion, while the HMX FJ400 switch offers a balanced sound profile ideal for various environments, the Outemu Lime switch stands out with its muted sound and lightweight, comfortable feel. Both switches emphasize user-friendly characteristics, making them accessible options for newcomers to mechanical keyboards. Those seeking a quiet and pleasant typing experience, whether through the versatility of the FJ400 or the gentle touch of the Lime, can rest assured that either choice will provide a satisfying outcome.
Conclusion
To conclude, the choice between the HMX FJ400 linear switch and the Outemu Lime tactile switch ultimately depends on your typing preferences and the environment in which you plan to use your keyboard. If you lean towards a medium resistance switch that offers a balanced sound profile and a more linear experience, the FJ400 is an excellent choice. It's particularly suitable for those who appreciate a steady and smooth keypress with a sound that isn't overly loud, making it versatile for both gaming and office environments. On the other hand, if you prefer a lighter switch that allows for a quick and effortless typing experience, the Outemu Lime is ideal. Its lower actuation force, combined with its gentle tactile bump and muted sound, caters well to tactile switch enthusiasts who want a quieter operation—perfect for shared spaces or long typing sessions. Ultimately, consider what feels most comfortable for you and the setting in which you'll be using your keyboard to make the best choice.