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HMX Gravel vs. Gazzew U4Tx

An in-depth look at the HMX Gravel and the Gazzew U4Tx switches—which one is the best fit for you?

Overview

When it comes to choosing the right mechanical keyboard switch, the HMX Gravel and Gazzew U4Tx offer two distinct yet compelling experiences for enthusiasts. The Gravel is a linear switch celebrated for its exceptional smoothness and a medium-light actuation force, making it an ideal choice for those who prefer a responsive and effortless typing experience without tactile interruptions. In contrast, the Gazzew U4Tx, a tactile switch, beautifully combines a satisfying tactile bump with a unique sound profile—a deep, resonant "thock" when bottoming out and a whisper-quiet finish at the top, catering to users who desire both auditory feedback and a luxurious feel. Each switch excels in its own right: the Gravel is perfect for fast-paced typists seeking a fluid experience, while the U4Tx appeals to those who appreciate tactile feedback and pleasing sound with every keystroke. 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

45g

Actuation force

N/A

Bottom-out force

50g

Bottom-out force

62.5g

Pre-travel

2.00 mm

Pre-travel

N/A

Total travel

3.50 mm

Total travel

3.60 mm

Factory lubed

Yes

Factory lubed

Yes

Stem construction

Standard

Stem construction

Partial box

Stem material

POM

Stem material

POM

Top housing material

Polycarbonate

Top housing material

Proprietary Gazzew blend

Bottom housing material

Nylon

Bottom housing material

Proprietary Gazzew blend

Mount type

PCB (5-pin)

Mount type

PCB (5-pin)

Spring

22mm single-stage spring

Spring

Stainless steel Korean spring

Housing materials

When comparing the housing materials of the HMX Gravel and the Gazzew U4Tx switches, one of the most pronounced differences lies in the top housing. The Gravel features a polycarbonate top housing, known for its rigidity and translucence, which enhances auditory clarity and resonance. This material contributes to a sharper and crisper sound profile, particularly advantageous for those utilizing RGB lighting, as its transparency allows the lighting to shine through beautifully. In contrast, the Gazzew U4Tx employs a proprietary blend of plastic, often referred to as "boba plastic," which is designed to be softer and impact the overall sound experience differently. This difference in rigidity means that while the Gravel creates a brighter sound, the U4Tx aims for a richer and more nuanced auditory experience that evokes a depth often favored by enthusiasts.

The bottom housing is another area where the two switches contrast yet harmonize in their goals for sound profile. The HMX Gravel is constructed with nylon for its bottom housing, which is a classic choice for keyboard switches. Nylon's characteristics allow it to absorb sound, resulting in a deeper and fuller sound profile. On the other hand, the Gazzew U4Tx's bottom housing also utilizes a similar soft plastic blend, contributing to its rich and deep sound. The softness of both materials leads to a muted bottom-out sound, enhancing the tactile experience when pressing the keys. In essence, while the specific materials differ, their design intentions converge on creating an appealing auditory experience through a softer, rounding sound.

In practice, the interaction between top and bottom housings in each switch reveals how the differences can yield similar results in sound profiles. As pressing down on a switch primarily engages the characteristics of the bottom housing, both the Gravel and U4Tx transition towards a deeper sound signature, regardless of the different materials used. The impact of the top housing is most felt when the key is released, and in the Gravel, the polycarbonate promotes a more pronounced escape sound, while the U4Tx’s softer plastic maintains a richness that compliments the bottom housing's fullness. Thus, whether one prefers the sharper clarity of the Gravel or the deeper richness of the U4Tx, both switches effectively deliver an enjoyable typing experience through their carefully crafted housing materials.

Weight

When comparing the HMX Gravel linear switch and the Gazzew U4Tx tactile switch, notable differences can be observed in their force specifications. The HMX Gravel features an actuation force of 45 grams and a bottom out force of 50 grams, categorizing it as a light switch conducive to longer typing sessions without strain. In contrast, the Gazzew U4Tx lacks a specified actuation force but has a higher bottom out force of 62.5 grams, indicating a medium level of resistance when fully pressed down. This makes the U4Tx a heavier option, suitable for users who prefer a more substantial typing experience. While the actuation force for the U4Tx remains unknown, the difference in bottom out forces suggests that typists will feel a noticeable contrast between the two switches, favoring the Gravel for extended use and the U4Tx for a firmer keystroke feel. Thus, if you seek a lighter switch for comfort during long sessions, the HMX Gravel is the better choice; conversely, if you desire a stronger push feel, the Gazzew U4Tx would be more aligned with your preferences.

Travel distance

The HMX Gravel linear switch features a travel distance of 3.5 mm, while the Gazzew U4Tx tactile switch has a slightly longer travel distance of 3.6 mm. This makes the Gravel switch the shorter of the two options, offering a more responsive feel ideal for gamers who prefer quicker actuation. In contrast, the U4Tx, with its longer travel distance, might appeal to those who enjoy a more substantial depth and tactile feedback during typing. If you opt for the Gravel switch, you'll likely experience a more abrupt response, whereas the U4Tx will provide a gradual press that can feel more deliberate. Overall, while the difference in travel distance is minimal, it can significantly influence your typing experience based on personal preference.

Price comparison

Which switch is more bang for your buck?

The HMX Gravel has an MSRP of $3.50 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the Gravel for $2.99.

The Gazzew U4Tx comes in at $6.50 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

When it comes to sound, the HMX Gravel switch has not been explicitly characterized; however, its smooth operation likely promotes a more subdued auditory experience compared to switches with louder acoustics. In contrast, the Gazzew U4Tx is noted for its deep, resonant "thock" when bottoming out, complemented by a quieter topping-out sound. This combination provides a rich, bassy sound profile that strikes a balance between satisfaction and subtlety, making the U4Tx both acoustically pleasing and suitable for shared environments.

In terms of feel, the Gravel switch is recognized for its exceptional smoothness and refined typing experience, which contributes to a light, responsive touch ideal for uninterrupted typing. The U4Tx, however, stands out for its pronounced tactile bump, characterized as sharp and crisp, ensuring that users receive tactile feedback with every press. This sharpness provides a clear distinction between key presses, enhancing typing accuracy and pleasure. While the Gravel focuses more on smoothness, the U4Tx emphasizes tactile engagement, catering to different preferences among typists.

In conclusion, both the HMX Gravel and Gazzew U4Tx switches present distinct qualities that will appeal to different types of keyboard enthusiasts. The Gravel offers a smooth, lightweight typing experience with a likely muted sound, ideal for those who prefer a subtle feedback mechanism without much noise. Conversely, the U4Tx provides a deeper sound experience with pronounced tactile feedback, perfect for users who enjoy both auditory and tactile satisfaction while typing. Ultimately, your choice between these switches will depend on whether you prioritize a refined, smooth feel or a sharp, tactile response with rich acoustics.

Conclusion

To conclude, your choice between the HMX Gravel linear switch and the Gazzew U4Tx tactile switch ultimately depends on your personal preferences and typing needs. If you find yourself favoring a smooth and effortless typing experience, perhaps for long typing sessions or gaming, the Gravel's light actuation force and refined feel will serve you well, allowing for rapid key presses with minimal fatigue. On the other hand, if you appreciate tactile feedback and a rich acoustic profile, the U4Tx's medium actuation force and crisp tactile bump are perfect for a satisfying typing experience. The deep "thock" sound during bottoming out adds a luxurious auditory element, making it ideal for those who enjoy auditory satisfaction alongside physical feedback. In short, if you prioritize smoothness and lightness, go with the Gravel; if you prefer tactile feedback and a more pronounced sound, choose the U4Tx.

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