United States: Free shipping on orders over $49

SP-Star RedBlue vs. Gazzew U4Tx RGB

An in-depth look at the SP-Star RedBlue and the Gazzew U4Tx RGB switches—which one is the best fit for you?

Overview

When it comes to mechanical keyboard switches, the SP-Star RedBlue and the Gazzew U4Tx RGB represent two distinct experiences that cater to different user preferences. The RedBlue is celebrated for its medium-light linear feel, making it an ideal choice for typists who enjoy a smooth, uninterrupted keypress without the distraction of tactile feedback; it features a low-pitched sound profile that contributes to a quiet yet satisfying typing experience. In contrast, the Gazzew U4Tx RGB stands out with its tactile switch characteristics, providing users with a pronounced bump that enhances typing precision, all while delivering a luxurious "thock" sound when bottoming out, making it appealing for those who appreciate both auditory feedback and a tactile sensation. Each switch has its merits: the RedBlue caters to users seeking minimal resistance and a softer sound, while the U4Tx RGB excels for those who relish the richness of tactile feedback. 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

N/A

Actuation force

N/A

Bottom-out force

57g

Bottom-out force

65g

Pre-travel

2.00 mm

Pre-travel

N/A

Total travel

4.00 mm

Total travel

3.60 mm

Factory lubed

Yes

Factory lubed

Yes

Stem construction

Standard

Stem construction

Standard

Stem material

POM

Stem material

POM

Top housing material

Polycarbonate

Top housing material

Proprietary Gazzew blend

Bottom housing material

Polycarbonate

Bottom housing material

Proprietary Gazzew blend

Mount type

PCB (5-pin)

Mount type

PCB (5-pin)

Spring

Gold plated

Spring

Stainless steel Korean spring

Housing materials

The housing materials of the SP-Star RedBlue and the Gazzew U4Tx RGB switches present an interesting contrast that contributes significantly to their respective sound profiles. The RedBlue features a polycarbonate top housing that is known for its stiffness, resulting in a sharper and crisper sound when the switch is engaged. This material's translucency also serves a practical function, enhancing RGB lighting effects and ensuring better visibility of illumination through the keycap. In contrast, the U4Tx RGB employs a proprietary Gazzew blend for its top housing, often referred to as "boba plastic." This blend is softer, which leads to a richer and deeper sound profile, providing a different auditory experience that could appeal to users preferring a warmer tone.

When it comes to the bottom housings, the SP-Star RedBlue again opts for polycarbonate, which aligns with its emphasis on producing a higher-pitched sound that resonates clearly upon actuation. This decision reinforces the overall sound profile aimed at delivering a more pronounced auditory feedback. Meanwhile, the Gazzew U4Tx RGB uses its proprietary Gazzew blend for the bottom housing as well, which similarly contributes to a deep and rich sound but contrasts with the polycarbonate's sharper characteristics. The combination of these materials in both switches highlights fundamental differences in their acoustic profiles, with the RedBlue favoring a more pronounced, clear sound while the U4Tx RGB leans toward a fuller, warmer tone.

Ultimately, the differences in the housing materials lead to distinct sonic experiences, but there is a notable interplay between the two designs. Since the overall switch sound is shaped by both the top and bottom housings, users can experience varying auditory feedback depending on the switch pressed. For instance, the RedBlue will emphasize a crisp sound upon release given its polycarbonate top, while the U4Tx RGB will deliver a softer sound profile throughout the entire engagement due to its proprietary blend. Users looking to achieve a specific acoustic experience can choose switches that align with their preferences, and if they value RGB lighting effects, both switches can accommodate this requirement, albeit with differing audio outputs.

Weight

When comparing the SP-Star RedBlue linear switch and the Gazzew U4Tx RGB tactile switch, we observe notable differences in their bottom out forces, although both switches have unspecified actuation forces. The SP-Star RedBlue has a bottom out force of 57 grams, categorized as medium-light, making it a more suitable option for users who prefer a lighter touch for extended typing or gaming sessions. In contrast, the Gazzew U4Tx RGB features a bottom out force of 65 grams, which is classified as medium-heavy. This heavier force provides a more substantial push feel, appealing to those who seek a more tactile typing experience. Therefore, while both switches lack explicit actuation values, the RedBlue is the lighter option, offering ease during prolonged use, whereas the U4Tx is heavier, catering to users who enjoy a firmer keypress.

Travel distance

When comparing the travel distances of the SP-Star RedBlue linear switch and the Gazzew U4Tx RGB tactile switch, a noticeable difference arises. The RedBlue switch has a travel distance of 4 mm, making it the longer option, while the U4Tx RGB has a slightly shorter travel distance of 3.6 mm. The traditional 4 mm distance offers a more substantial feel for those who enjoy a deeper response when typing, whereas the 3.6 mm distance of the U4Tx RGB provides a quicker actuation for those who favor speed, particularly gamers. Ultimately, the choice between these two switches will depend on individual preferences regarding depth and response time.

Price comparison

Which switch is more bang for your buck?

The SP-Star RedBlue has an MSRP of $5.80 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the RedBlue for $5.40.

The Gazzew U4Tx RGB 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

The sound profile of the SP-Star RedBlue linear switch is characterized by its low-pitched, thocky quality, offering a deep and satisfying tone when the keys are pressed. This allows for an enjoyable acoustic experience that feels substantial yet not overpowering, making it suitable for both home and office environments. The sound produced is bass-heavy and mellow, with a neutral aspect that balances well for users of all experience levels. Meanwhile, while the Gazzew U4Tx RGB tactile switch features a refined sound profile that blends deep "thock" noises when bottoming out with a quiet topping out, specific descriptors of its sound are not provided. Users can expect a softer, more controlled audio experience with the U4Tx, contributing to a luxurious typing ambiance.

In terms of feel, the RedBlue switch offers a mild and polished typing experience. The mildness results in a gentle feedback that is manageable for typists of any background, ensuring comfort during extended typing sessions. The polished nature promises smooth key travel, reducing friction and allowing for a seamless interaction with the keyboard. Conversely, the U4Tx RGB has not been ascribed specific tactile qualities or descriptions regarding its feel, leaving its tactile feedback unknown. However, the sharp tactile bump mentioned indicates a potentially more pronounced feel compared to the more subdued characteristics of the RedBlue, catering to users who enjoy tactile switches.

In conclusion, both the SP-Star RedBlue linear switch and the Gazzew U4Tx RGB tactile switch provide unique auditory and tactile experiences. The RedBlue is celebrated for its deep, low-pitched sounds and polished, mild feel, making it a versatile switch suitable for many situations. The U4Tx, on the other hand, aims to enhance the tactile experience with its luxurious sound and tactile bump yet lacks specific details in feel. Selecting between the two ultimately depends on whether you prioritize a smooth linear experience or a more tactile interaction with your keyboard.

Conclusion

To conclude, your choice between the SP-Star RedBlue linear switch and the Gazzew U4Tx RGB tactile switch ultimately hinges on your typing preferences and usage scenarios. If you favor a lighter touch for extended typing sessions or gaming, the RedBlue's medium-light bottom out force of 57 grams will provide a gentle and polished experience. Its low-pitched, thocky sound profile can enhance your typing ambience without being disruptive, making it an ideal option for quiet environments. On the other hand, if you enjoy a more tactile response with a bit more resistance, the U4Tx RGB, with its medium-heavy bottom out force of 65 grams, is designed to deliver that satisfying sharp bump combined with a deep thocky sound that speaks to those who appreciate a refined acoustic experience. This makes it preferable for users who want that tactile feedback while typing or gaming for longer periods, adding a sense of luxury to each keystroke. Ultimately, your decision should align with whether you prioritize a smooth, light experience with the RedBlue or a richer, more tactile and acoustically pleasurable experience with the U4Tx RGB.

Mentioned in this article