KTT Purple Star vs. HMX Xinhai (Heavy)
An in-depth look at the KTT Purple Star and the HMX Xinhai (Heavy) switches—which one is the best fit for you?
Overview
When it comes to selecting the ideal mechanical keyboard switch, the choice often boils down to personal preference, especially between two popular linear options: the KTT Purple Star and the HMX Xinhai (Heavy). The Purple Star switches, crafted from all-POM materials, are celebrated for their buttery smooth typing experience and neutral sound signature, making them an excellent option for lighter typists with their low 45g bottom-out force that promotes ease and comfort during extended use. This switch is characterized by its mild feel, low-pitched acoustics, and easy-to-press action, appealing to those who appreciate a light touch. In contrast, the Xinhai (Heavy) switches offer a more robust feel, featuring a unique PA12 top housing that contributes to softer acoustics and a POM stem that produces a distinctively crisp, higher-pitched resonance. Tailored for users seeking a bit more resistance and precision, the Xinhai (Heavy) embodies a sophisticated typing experience that caters to heavier typists. Both switches have their merits depending on typing style and preference; 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
43g
Actuation force
55g
Bottom-out force
50g
Bottom-out force
62.5g
Pre-travel
1.80 mm
Pre-travel
2.00 mm
Total travel
3.50 mm
Total travel
3.40 mm
Factory lubed
Yes
Factory lubed
Yes
Stem construction
Partial box
Stem construction
Standard
Stem material
POM
Stem material
POM
Top housing material
POM
Top housing material
Nylon
Bottom housing material
POM
Bottom housing material
Nylon
Mount type
PCB (5-pin)
Mount type
PCB (5-pin)
Spring
Stainless steel
Spring
22mm single-stage spring
Housing materials
The KTT Purple Star and the HMX Xinhai (Heavy) each utilize distinct housing materials that contribute to their sound profiles and overall performance characteristics. The KTT Purple Star features POM for both its top and bottom housings. POM is known for its ability to produce a unique sound, which is described as deeper and more muted, creating a refined auditory experience. On the other hand, the HMX Xinhai (Heavy) employs nylon for its housing, which is a classic choice in switch design. Nylon consistently elicits a deeper and fuller sound due to its softer texture, which allows it to absorb sound more effectively than harder plastics. This results in a sound profile that is similarly deeper and rounder, albeit with different textural qualities attributed to each material.
While the KTT Purple Star and HMX Xinhai (Heavy) both achieve a deeper sound profile, the difference in their housing materials—POM versus nylon—promotes distinct auditory and tactile experiences. With the Purple Star utilizing POM, the unique sonic character of POM may create a slightly more intricate sound than that of the nylon found in the Xinhai (Heavy). The softness of the nylon in the Xinhai (Heavy), although effective in producing a muted sound, may not provide the same level of sonic clarity that POM can deliver. Additionally, the tactile feedback might feel different; POM can offer a more pronounced sensation, especially noticeable when bottoming out the key.
Ultimately, while both switches may provide similar deeper sound profiles due to their characteristics, the specifics of how that sound is generated stem from the differing properties of their materials. When typing on the Purple Star, the qualities of the POM housing largely inform the sound when releasing the keys, while the nylon in the Xinhai (Heavy) fosters a muted resonance that influences both the bottom-out feeling and sound. Therefore, enthusiasts looking for a rich, deep typing experience will find satisfaction in both models, yet with nuanced differences arising from the materials used in their construction.
Weight
The KTT Purple Star linear switch and the HMX Xinhai (Heavy) linear switch exhibit notable differences in both actuation force and bottom out force, highlighting their suitability for diverse typing preferences. The Purple Star features a lighter actuation force of 43 grams and a bottom out force of 50 grams, making it ideal for users who prioritize comfort and extended typing sessions. In contrast, the Xinhai (Heavy) offers a medium actuation force of 55 grams and a bottom out force of 62.5 grams, catering to those who prefer a more substantial feel with every keystroke. This contrast means that, while the Purple Star is better for longer use without fatigue, the Xinhai (Heavy) provides a firmer push that some typists find more satisfying. Overall, these differences help potential users determine which switch aligns best with their typing style and comfort preferences.
Travel distance
When comparing the travel distances of the KTT Purple Star linear switch and the HMX Xinhai (Heavy) linear switch, we find that they differ slightly. The Purple Star features a travel distance of 3.5 mm, while the Xinhai (Heavy) offers a shorter travel distance of 3.4 mm. This means that the Xinhai (Heavy) switch allows for a slightly faster key response, making it more suitable for gamers who favor quicker actuation times. In contrast, the Purple Star, with its longer travel distance, provides a deeper, more tactile feel that some users may prefer for a more satisfying typing experience. Ultimately, if you value responsiveness, the Xinhai (Heavy) is the better choice, while the Purple Star may be more appealing if you enjoy a subtle depth in your key presses.
Price comparison
Which switch is more bang for your buck?
The HMX Xinhai (Heavy) has an MSRP of $3.50 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the Xinhai (Heavy) for $2.99.
The KTT Purple Star comes in at $4.88 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 KTT Purple Star switch presents a low-pitched signature that contributes to a mellow auditory experience, making it suitable for environments where a softer sound is preferable. This bass-heavy tone aligns well with users looking for a less intrusive auditory feedback while typing, lending an inviting atmosphere to any workspace. On the other hand, the HMX Xinhai (Heavy) switch utilizes a unique PA12 top housing that is intended to create a softer acoustic profile. However, the specific sound characteristics of the Xinhai (Heavy) have not been clearly defined in the available information, leaving an unknown aspect regarding its auditory performance when compared to the Purple Star.
In terms of feel, the KTT Purple Star switch is characterized by its mild typing experience, which is more approachable for users of all skill levels. The easy-to-press design requires minimal force to activate, making it particularly comfortable for long typing sessions and reducing finger fatigue. This gentle resistance allows for a truly effortless and smooth action, enhancing the overall typing experience. In contrast, the feel of the Xinhai (Heavy) switch has not been detailed, leaving it ambiguous how its tactile feedback and resistance compare to the Purple Star's user-friendly characteristics.
In conclusion, while the KTT Purple Star linear switch is clearly defined with its light actuation force, mild feel, and low-pitched sound, the HMX Xinhai (Heavy) switch presents some unidentified qualities, particularly concerning its feel and sound. Thus, if you're seeking a known, comfortable typing experience, the Purple Star is an excellent choice, providing a smooth and light action with a mellow auditory profile. However, if you are inclined towards exploring the Xinhai (Heavy), its potential for a unique acoustic quality could appeal to those seeking a slightly different typing experience, although its exact nature remains to be fully discovered.
Conclusion
To conclude, your choice between the KTT Purple Star linear switch and the HMX Xinhai (Heavy) linear switch ultimately hinges on your typing preferences and the type of experience you're seeking. If you lean towards a lighter typing experience that requires minimal force with a smooth, low-pitched sound, the Purple Star is your go-to option. This switch is particularly advantageous for users who prefer effortless keystrokes, making it ideal if you spend long hours typing or gaming without strain. On the other hand, if you desire a more tactile experience that provides a bit of a workout for your fingers and a crisp, sophisticated resonance, the Xinhai (Heavy) would be the better choice. Its medium bottom-out force offers a balance of resistance and comfort, making it suitable for typists who appreciate a solid feedback and a slightly more pronounced acoustic profile. In essence, your selection should align with whether you prioritize ease and softness or a more robust and responsive feel in your typing experience.
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