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HMX Blue Topaz vs. Bsun Guyu

An in-depth look at the HMX Blue Topaz and the Bsun Guyu switches—which one is the best fit for you?

Overview

When considering mechanical keyboard switches, the HMX Blue Topaz and the BSUN Guyu linear switches offer unique features that cater to different preferences. The Blue Topaz stands out for its super smooth actuation and lightweight feel, making typing a breeze with a clacky sound signature that adds to the overall experience. On the other hand, the Guyu switches provide a distinctive auditory experience with deep acoustics and a bright, crisp bottom-out sound, thanks to their all-POM housings and UPE stem. While the Blue Topaz is known for being easy to press and clacky, the Guyu switches offer a range of characteristics including being creamy, frictionless, polished, silky, and snappy. 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

40g

Actuation force

45g

Bottom-out force

48g

Bottom-out force

50g

Pre-travel

2.00 mm

Pre-travel

N/A

Total travel

3.90 mm

Total travel

3.60 mm

Factory lubed

Yes

Factory lubed

Yes

Stem construction

Standard

Stem construction

Standard

Stem material

Ly

Stem material

UPE

Top housing material

Polycarbonate

Top housing material

POM

Bottom housing material

Nylon

Bottom housing material

POM

Mount type

PCB (5-pin)

Mount type

PCB (5-pin)

Spring

22mm single-stage spring

Spring

21mm spring

Housing materials

The housing materials of the HMX Blue Topaz and the Bsun Guyu switches offer unique characteristics that affect the sound profile and user experience. The Blue Topaz features a polycarbonate top housing, which produces a sharper and crisper sound due to its stiffness. In contrast, the Guyu utilizes a POM top housing, creating a deeper and more muted sound. While both materials offer distinct sound profiles, the polycarbonate is ideal for a clear housing and RGB lighting effects, while the POM offers a pleasing and unique sound experience.

In terms of the bottom housing, the Blue Topaz uses nylon which results in a deeper and fuller sound profile due to its softer nature that absorbs more sound. Similarly, the Guyu employs a POM bottom housing, contributing to a deeper and more muted sound profile. Despite the different materials, both switches offer a unique sound experience that is influenced by the characteristics of their respective bottom housings. The nylon in the Blue Topaz and the POM in the Guyu both play a vital role in shaping the overall sound and feel of the switch.

Overall, the choice between the HMX Blue Topaz and the Bsun Guyu ultimately comes down to personal preference in terms of sound profile and user experience. While the Blue Topaz offers a sharper and crisper sound with its polycarbonate top housing and nylon bottom housing, the Guyu provides a deeper and more muted sound with its POM top and bottom housing. Both switches have their own unique qualities that cater to different preferences, but ultimately deliver a satisfying typing experience. Whether you prefer a sharper sound with clearer resonance or a deeper, more muted tone, both switches offer a high-quality housing material to suit your needs.

Weight

The HMX Blue Topaz linear switch has a lighter actuation force of 40 grams compared to the Bsun Guyu linear switch, which has an actuation force of 45 grams. Both switches have a relatively light bottom out force, with the Blue Topaz at 48 grams and the Guyu at 50 grams. For those who prefer a lighter typing experience, the Blue Topaz may be the better option due to its slightly lower actuation force. On the other hand, the Guyu provides a slightly firmer typing feel with its higher actuation force. Ultimately, the choice between the two switches will depend on personal preference and whether a lighter or slightly heavier typing experience is preferred.

Travel distance

The HMX Blue Topaz linear switch has a travel distance of 3.9 mm, while the Bsun Guyu linear switch has a travel distance of 3.6 mm. In this case, the Blue Topaz has a slightly longer travel distance compared to the Guyu. The Blue Topaz offers a bit more depth when pressing down on the keys, which can be preferred by those who enjoy a more substantial feel. On the other hand, the Guyu provides a slightly shorter travel distance, making it a favorable choice for individuals looking for quicker response times, such as gamers. Both switches fall within the range of shorter travel distances, which are becoming more popular in the market today. Ultimately, the decision between the two switches will depend on individual preferences for key feel and responsiveness.

Price comparison

Which switch is more bang for your buck?

The HMX Blue Topaz has an MSRP of $4.00 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the Blue Topaz for $3.49.

The Bsun Guyu has an MSRP of $4.50 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the Guyu for $3.70.

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 HMX Blue Topaz linear switch offers a clacky sound signature, providing a sharp and snappy sound that adds a percussive element to each keystroke. On the other hand, the Bsun Guyu linear switch also features a clacky sound profile but with a deeper acoustics and a brighter, crisper bottom-out sound. When it comes to feel, the Blue Topaz offers an easy-to-press experience with gentle resistance, making typing effortless and comfortable. In contrast, the Guyu switch is described as creamy, frictionless, polished, silky, and snappy, providing a smooth and buttery typing experience with minimal resistance and enhanced responsiveness.

In conclusion, while both the HMX Blue Topaz and Bsun Guyu linear switches offer unique and enjoyable typing experiences, they differ in their sound and feel qualities. The Blue Topaz excels in providing a clacky and lightweight feel, ideal for users who prefer a snappy sound and easy key presses. On the other hand, the Guyu switch stands out with its deep acoustics and smooth, buttery feel, catering to those seeking a creamy typing experience with minimal friction. Ultimately, choosing between these switches will depend on personal preference, as both switches offer high-quality performance and distinct characteristics that can enhance your typing rhythm.

Conclusion

In summary, when considering whether to choose the HMX Blue Topaz linear switch or the Bsun Guyu linear switch, you should weigh your preferences for sound and feel. If you prioritize a super smooth actuation and a lightweight feel with a clacky sound signature, the Blue Topaz may be the ideal choice for you. On the other hand, if you are looking for a unique auditory experience with deep acoustics and a medium weight switch that offers a creamy, frictionless, polished, silky, and snappy typing sensation, the Bsun Guyu switch could be the perfect fit for your typing needs. Ultimately, the decision between the two switches boils down to your personal preferences in sound and feel, so choose the one that aligns best with your typing style and preferences.

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