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Aflion Iceberg vs. Gazzew U4

An in-depth look at the Aflion Iceberg and the Gazzew U4 switches—which one is the best fit for you?

Overview

Aflion Iceberg and Gazzew U4 are two mechanical keyboard switches that offer distinct qualities for different typing preferences. The Iceberg, representing Aflion's commitment to producing high-quality switches, is a linear switch that provides a smooth and satisfying typing experience. With its two-stage spring, the Iceberg switch offers a unique feel that combines snappiness with a subtle touch. On the other hand, the Gazzew U4 is a tactile switch that brings a sharp and exhilarating tactile bump when typing, accompanied by a plush, felt-like sensation upon bottoming out. Notably, the U4 excels at maintaining a whisper-quiet sound profile, adding a touch of subtlety to its impressive style. However, let's dive in a bit deeper beyond these generalities so you can make an informed decision about which switch will best suit your individual needs.

By the numbers

Technical specifications

Actuation force

37g

Actuation force

45g

Bottom-out force

45g

Bottom-out force

62g

Pre-travel

2.00 mm

Pre-travel

N/A

Total travel

4.00 mm

Total travel

3.60 mm

Factory lubed

No

Factory lubed

Yes

Stem construction

Partial box

Stem construction

Standard

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

20mm two-stage spring

Spring

Stainless steel 14mm Korean spring

Housing materials

The Aflion Iceberg and the Gazzew U4 have contrasting housing materials that result in distinct sound profiles. The Iceberg utilizes a polycarbonate top housing, which creates a sharper, higher-pitched, and crisper sound. Due to its translucency, polycarbonate is also ideal for showcasing RGB lighting. In contrast, the U4 employs a proprietary Gazzew blend top housing, often referred to as "boba plastic," that produces a rich and deep sound profile. This is achieved through the softness of the blend, which enhances the overall tonality and depth of the sound.

In terms of their bottom housings, the Iceberg features a nylon material known for eliciting a deeper and fuller sound profile. The softer nature of nylon absorbs more sound and creates a duller and rounder sound experience. On the other hand, the Gazzew U4's proprietary bottom housing utilizes the same "boba plastic" blend as its top housing. As a result, it delivers a similar rich and deep sound profile due to the material's softness.

When it comes to the overall typing experience, the bottom and top housings play different roles in influencing the sound and feel of the keys. The impact and sound produced when bottoming out the keys are mainly determined by the bottom housing material. In this regard, the Iceberg's nylon bottom housing would provide a deeper and fuller sound upon keystrokes. Conversely, the top housing has a greater influence on the sound when releasing a key. Therefore, the polycarbonate top housing of the Iceberg would contribute to a sharper and crisper sound when letting go of a key, while the Gazzew U4's "boba plastic" blend would deliver a rich and deep sound in the same scenario.

Overall, while the Iceberg and Gazzew U4 differ in their housing materials, both switches offer unique sound profiles. The Iceberg's polycarbonate top housing enhances the clarity and resonance of the sound, while its nylon bottom housing creates a deeper and fuller sound. In contrast, the Gazzew U4's proprietary "boba plastic" blend provides a rich and deep sound experience for both its top and bottom housings. Ultimately, the choice between the two switches would depend on individual preferences for sound characteristics.

Weight

When comparing the actuation force and bottom out force of the Aflion Iceberg linear switch and the Gazzew U4 tactile switch, there are clear distinctions to be made. The Iceberg switch has a relatively lighter actuation force of 37 grams, while the U4 switch requires a slightly heavier force of 43 grams to trigger a keystroke. In terms of bottom out force, the Iceberg switch stands at 45 grams, whereas the U4 switch requires a significantly heavier force of 62 grams.

This difference in force between the two switches presents users with distinct options catering to their individual preferences. For those who value a lightweight typing experience, the Iceberg switch's lighter actuation and bottom out forces would be ideal. This allows for longer typing sessions without causing excessive fatigue. This lighter force also suits gamers who require quick and effortless keystrokes during extended gaming sessions.

Conversely, users who prefer a more substantial typing feel and enjoy a stronger push when pressing keys would lean towards the U4 switch. The slightly heavier actuation force of 43 grams provides a more pronounced tactile feedback, giving users a satisfying and solid keystroke. The higher bottom out force of 62 grams further enhances this substantial typing experience.

It is worth noting that despite their differences, both switches can still provide satisfying results. If a user desires a tactile typing experience with lighter forces, selecting the Iceberg switch can achieve similar results to the U4 switch's heavier actuation and bottom out forces. On the other hand, if someone prefers a lighter feel but still wants a deeper keystroke experience, the U4 switch's actuation force can be compensated by applying less force during typing.

In conclusion, the Aflion Iceberg linear switch offers a lighter actuation and bottom out force, suitable for those seeking extended typing periods. Conversely, the Gazzew U4 tactile switch provides a stronger push feel and a more substantial typing experience with its heavier forces. Both switches offer unique advantages, and users can tailor their choice based on their personal preferences and typing style.

Travel distance

The Aflion Iceberg linear switch and the Gazzew U4 tactile switch have different travel distances. The Iceberg has a travel distance of 4 mm, while the U4 has a travel distance of 3.6 mm. Both switches fall within the range of traditional travel distances, with 4 mm being the more traditional option and 3.6 mm being slightly shallower. However, it is worth noting that shorter travel distances have become more popular, particularly among gamers who prioritize faster response times. In this case, the U4 with its 3.6 mm travel distance would be the preferred choice. On the other hand, some individuals may find shorter travel distances to be too abrupt and prefer a switch with a longer travel distance for a more satisfying keystroke. For those who prefer a deeper feel, the Iceberg with its 4 mm travel distance would be the better option. Ultimately, the choice between these switches depends on personal preference and the desired typing experience.

Price comparison

Which switch is more bang for your buck?

The Aflion Iceberg has an MSRP of $3.50 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the Iceberg for $3.07.

The Gazzew U4 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 Aflion Iceberg linear switch is described as clacky and high-pitched. This means that the switch produces a sharp, snappy sound that is crisp, bright, and percussive. On the other hand, the Gazzew U4 tactile switch has a muted sound profile that is softer and quieter compared to a regular switch. It has a low-pitched, bass-heavy, and mellow tone. Keep in mind that the sound of a switch can also be influenced by factors such as the keyboard board and keycaps used.

In terms of feel, the Aflion Iceberg linear switch offers a satisfying smoothness and a fulfilling feel due to its two-stage spring. It can be described as snappy, feathery, and subtle. This means that the switch is super responsive, light to press, and has a gentle resistance, making it comfortable for extended typing sessions. It also has a non-resonant sound signature, making it suitable for shared spaces. On the other hand, the Gazzew U4 tactile switch is known for its sharp tactile bump that provides a high feedback intensity. With each keypress, users will feel a strong and crisp tactile bump.

In conclusion, the Aflion Iceberg linear switch and the Gazzew U4 tactile switch offer different subjective qualities in sound and feel. The Iceberg switch has a clacky and high-pitched sound profile, while the U4 switch has a muted and low-pitched sound profile. In terms of feel, the Iceberg switch is smooth, snappy, feathery, and subtle, while the U4 switch is sharp and provides a strong tactile bump. Based on the available information, if you prefer a sharper sound and a stronger tactile feedback, the U4 switch would be a suitable choice. However, if you prefer a smoother and lighter typing experience with a satisfying bottom-out feel, the Iceberg switch would be a good option. Remember that your choice may also be affected by other factors such as personal preferences, the keyboard board, and keycaps used.

Conclusion

To sum up, if you are looking for a light and smooth linear switch, the Aflion Iceberg would be a great choice for you. With a bottom out force of 45 grams, it provides a satisfying feel and smooth typing experience. Additionally, the Iceberg has a clacky and high-pitched sound profile, adding to its unique character.

On the other hand, if you prefer a medium bottom out force and a sharp tactile bump, the Gazzew U4 tactile switch would be an excellent option. With a bottom out force of 62 grams, it offers a sharp and exhilarating tactile feedback. Moreover, the U4 has a muted and low-pitched sound profile, making it whisper quiet and suitable for environments where noise is a concern.

Ultimately, the choice between the Iceberg and the U4 depends on your preferences for force, sound, and feel. If you prioritize a lighter linear switch with a smooth typing experience, go for the Iceberg. If you prefer a medium force switch with a sharp tactile bump and a quiet sound profile, the U4 is the way to go. Consider your typing style, environment, and personal preferences to make the best decision for your mechanical keyboard setup.

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