HMX EVA vs. SP-Star Polaris Purple
An in-depth look at the HMX EVA and the SP-Star Polaris Purple switches—which one is the best fit for you?
Overview
When it comes to selecting the perfect mechanical keyboard switch, enthusiasts often find themselves torn between the HMX EVA and the SP-Star Polaris Purple, each offering distinct sensory experiences. The HMX EVA, inspired by the iconic colors of Evangelion Unit-01, is celebrated for its silky smooth feel and resonant sound signature, making it an ideal choice for users who prioritize a seamless typing experience without tactile interruptions. In contrast, the SP-Star Polaris Purple switches cater to those who enjoy a more dynamic typing experience, characterized by a pronounced tactile bump that delivers a satisfying feedback with every keystroke; it offers a snappier sound profile and is categorized as 'Neutral,' 'Mild,' and 'Polished.' The EVA is perfect for those who want a quiet and fluid typing experience, while the Polaris Purple excites users seeking that extra tactile engagement and auditory delight. 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
42g
Actuation force
N/A
Bottom-out force
48g
Bottom-out force
67g
Pre-travel
2.00 mm
Pre-travel
2.00 mm
Total travel
3.60 mm
Total travel
4.00 mm
Factory lubed
Yes
Factory lubed
Yes
Stem construction
Standard
Stem construction
Standard
Stem material
T2
Stem material
POM
Top housing material
Nylon
Top housing material
Polycarbonate
Bottom housing material
Nylon
Bottom housing material
Polycarbonate
Mount type
PCB (5-pin)
Mount type
PCB (5-pin)
Spring
22mm single-stage spring
Spring
Gold plated
Housing materials
When comparing the housing materials of the HMX EVA and the SP-Star Polaris Purple, a notable distinction arises from the differing properties of nylon and polycarbonate. The EVA utilizes nylon for both its top and bottom housings, which lends a deeper and fuller sound profile to the switching experience. Nylon, being a softer plastic, absorbs sound waves more effectively than its stiffer counterpart, creating a duller and rounder auditory feedback. This quality of nylon not only contributes to a softer typing experience but also provides a unique tactile sensation upon bottoming out. In contrast, the Polaris Purple employs polycarbonate for both its top and bottom housing, producing a sharper, higher-pitched, and crisper sound due to the material's rigidity. The clarity and resonance offered by polycarbonate result in a different audible experience, characterized by a more pronounced keystroke sound.
The nuances in sound profiles from the different housing materials extend beyond mere auditory characteristics; they also affect the tactile sensation experienced by the user. Since the EVA's nylon housings are uniform across both top and bottom, the resulting experience emphasizes a cohesive auditory signature that is pleasingly muted and rich. Conversely, the SP-Star Polaris Purple, with its polycarbonate construction, brings a more detailed and vibrant sound experience. The stiffer polycarbonate not only amplifies the auditory feedback but also allows the user to appreciate the subtleties in keystroke sounds. The tactile feedback from the bottom housing of the Polaris Purple may feel sharper due to the material's inherent properties, contrasting with the softer tactile experience provided by the EVA's nylon housings.
While the housing materials of the EVA and Polaris Purple differ significantly, both can yield high-quality switching experiences tailored to distinct preferences. If a user favors the sound profile of one switch but unexpectedly prefers the tactile experience of the other, they can still achieve satisfying results by carefully considering their typing habits and the overall feel they value in a switch. For instance, if the tactile feedback of the EVA's softer nylon resonates more with a user but they are drawn to the sound clarity of the Polaris Purple, they may find third-party modifications—such as changing springs or using different keycaps—helpful in achieving a more desired auditory and tactile balance. Ultimately, the choice between nylon and polycarbonate housing materials will significantly influence both sound and feel, allowing users to select according to their personal preferences.
Weight
When comparing the actuation and bottom out forces of the HMX EVA linear switch and the SP-Star Polaris Purple tactile switch, notable differences emerge. The HMX EVA features a light actuation force of 42 grams and a bottom out force of 48 grams, making it suitable for long typing sessions or extended gaming, catering to those who prefer a lighter touch. In contrast, the Polaris Purple's specifics are less defined, as it does not have a stated actuation force but boasts a significantly heavier bottom out force of 67 grams. This indicates that while the Polaris Purple may provide a more substantial typing experience for users who prefer a stronger push, it could lead to fatigue over longer durations compared to the EVA’s lighter action. Consequently, the EVA can be considered the lighter switch, while the Polaris Purple is the heavier option, making them suitable for different preferences in typing feel and endurance.
Travel distance
When comparing the travel distances of the HMX EVA linear switch and the SP-Star Polaris Purple tactile switch, the EVA measures 3.6 mm, while the Polaris Purple has a travel distance of 4 mm. This indicates that the Polaris Purple offers a longer travel distance, which may appeal to users seeking a more substantial feel with each keypress, providing depth and a more pronounced tactile response. On the other hand, the EVA's shorter travel distance could be advantageous for those prioritizing responsiveness and speed, such as gamers who rely on quick key actions. Thus, while both switches provide a unique typing experience, users can choose based on their preference for either a quicker response or a more traditional, hearty depth.
Price comparison
Which switch is more bang for your buck?
The HMX EVA has an MSRP of $3.50 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the EVA for $2.99.
The SP-Star Polaris Purple has an MSRP of $5.60 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the Polaris Purple for $5.00.
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 HMX EVA linear switch is characterized by a resonant signature, which provides a unique auditory experience that may appeal to enthusiasts who appreciate a distinct tonal quality while typing. In contrast, the SP-Star Polaris Purple tactile switch has a snappy sound that aligns with its more pronounced tactile feedback. This neutral sound profile allows it to fit comfortably in a variety of environments, making it suitable for both casual and professional settings. While the EVA may offer a more colorful sound experience, the Polaris Purple delivers a practical auditory feedback that can be appreciated by users who prefer a more straightforward typing sound.
Regarding the tactile feel, the HMX EVA is known for its silky smooth typing experience, which often translates to a seamless key travel that some users find particularly enjoyable. This smoothness can make long typing sessions feel more comfortable, reducing fatigue. Conversely, the Polaris Purple switch features a significant tactile bump that creates an exhilarating typing experience, giving users that satisfying feedback with each keystroke. While the EVA provides a more linear feel that is celebrated for its fluidity, the Polaris Purple offers a more engaging and pronounced tactile sensation, appealing to those who value feedback in their typing.
In conclusion, both the HMX EVA and SP-Star Polaris Purple switches cater to different preferences in sound and feel. The EVA stands out with its resonant sound and silky smooth experience, ideal for those who prioritize barrier-free key travel. Meanwhile, the Polaris Purple offers a snappy sound and mild yet polished tactile feedback, making it suitable for typists who enjoy a defined tactile response. Whether one chooses the EVA or the Polaris Purple, individual typing habits and preferences will ultimately influence the choice, with both switches providing enjoyable and effective typing experiences in their unique ways.
Conclusion
To conclude, your choice between the HMX EVA linear switch and the SP-Star Polaris Purple tactile switch ultimately hinges on your typing preferences and how you intend to use your keyboard. If you prefer a lighter touch and enjoy a smooth, uninterrupted typing experience, the HMX EVA, with its 48-gram bottom-out force, is an excellent choice. It’s particularly suitable for extended typing sessions where a gentle feel can enhance comfort, making it ideal for tasks like writing or casual gaming. On the other hand, if you appreciate tactile feedback and a more pronounced typing experience, the Polaris Purple is the way to go. With a bottom-out force of 67 grams, it delivers a satisfying tactile bump that can make typing more engaging and responsive. This switch may be better suited for those who do a lot of programming or gaming where feedback is key. Additionally, the sound profile of the Polaris Purple is neutral and mildly snappy, allowing it to blend well in both home and office environments, while the EVA’s sound signature might appeal to those looking for something a bit more unique. Ultimately, consider what aspects of typing you value most, and choose the switch that aligns with your preferences for the best overall experience.
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