Gateron CM vs. SP-Star Polaris Purple
An in-depth look at the Gateron CM and the SP-Star Polaris Purple switches—which one is the best fit for you?
Overview
When it comes to choosing a mechanical keyboard switch, two popular options that stand out are the Gateron CM and the SP-Star Polaris Purple. The Gateron CM switch breaks away from convention with its full nylon housing, offering a richer and deeper sound signature compared to polycarbonate housings. With an impeccable factory lube job, these linear switches provide an effortlessly smooth typing journey, giving a sensation of gliding gracefully with each keystroke. Additionally, the CM's lengthened, dual-staged spring ensures a bouncy typing experience. On the other hand, the SP-Star Polaris Purple is best known for its exhilarating tactile bump, delivering a snappy tactile typing experience. While it may not have the same level of richness and depth in sound as the CM, its sound profile is still considered polished. Both switches offer their unique advantages, providing options for those who prefer a buttery and bassy experience or a neutral and mildly tactile one. However, let's dive in a bit deeper beyond these generalities so you can best decide on the perfect switch for you.
By the numbers
Technical specifications
Actuation force
55g
Actuation force
N/A
Bottom-out force
63.5g
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
POM
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
Dual-staged 20mm lengthened gold-plated spring
Spring
Gold plated
Housing materials
The Gateron CM and the SP-Star Polaris Purple have contrasting housing materials for both the top and bottom of the switch. The CM utilizes a nylon top and bottom housing, which creates a deeper and fuller sound profile when typing. This is because nylon is a softer plastic that absorbs more sound, resulting in a duller and rounder sound. On the other hand, the Polaris Purple features a polycarbonate top and bottom housing, generating a sharper and higher-pitched sound. Polycarbonate is a stiffer plastic that produces a more clear and resonant sound profile. Additionally, the translucent nature of polycarbonate makes it ideal for switches with RGB lighting.
While the housing materials differ between the Gateron CM and the SP-Star Polaris Purple, their overall goal is to enhance the typing experience. Both nylon and polycarbonate have their unique properties, contributing to the sound and feel of the switch. The CM's nylon housing absorbs more sound, resulting in a deeper and fuller sound when typing, while the Polaris Purple's polycarbonate housing creates a sharper and crisper sound. Despite these differences, both materials aim to provide an enjoyable typing experience for users.
The impact of the housing materials is also distributed differently between the top and bottom of the switch. When pressing down on a switch, the qualities of the bottom housing are felt, affecting the sound and feel of the bottom-out. The Gateron CM's nylon bottom housing contributes to a deeper and fuller bottom-out sound. Conversely, the Polaris Purple's polycarbonate bottom housing yields a sharper and crisper bottom-out sound. On the other hand, the top housing has a greater impact on the sound when releasing a key. Therefore, the selection of housing materials plays a significant role in determining the overall typing experience with these switches.
Weight
When comparing the actuation force and bottom out force of the Gateron CM linear switch and the SP-Star Polaris Purple tactile switch, there are some notable similarities and differences. In terms of weight, the CM switch is lighter than the Polaris Purple switch. The CM switch has an actuation force of 55 grams and a bottom out force of 63.5 grams, making it medium-heavy. On the other hand, the Polaris Purple switch has an actuation force of unavailable grams and a bottom out force of 67 grams, also falling into the medium-heavy category. Despite the exact actuation force of the Polaris Purple switch being unknown, both switches offer a similar level of resistance when bottoming out.
Considering weight preferences, those who prefer a lighter typing experience may find the CM switch more suitable, especially for extended periods of typing or gaming. The lighter actuation force may allow for quicker keystrokes and less fatigue over time. However, for individuals who appreciate a more substantial typing feel and enjoy a stronger push, the Polaris Purple switch with its heavier bottom out force may be more appealing. Ultimately, the choice between the two switches depends on personal preference regarding the desired feedback and typing experience.
Travel distance
The Gateron CM linear switch has a travel distance of 3.6 mm, while the SP-Star Polaris Purple tactile switch has a travel distance of 4 mm. Therefore, the Polaris Purple has a slightly longer travel distance compared to the CM. The 4 mm travel distance of the Polaris Purple falls within the traditional range, while the CM's 3.6 mm travel distance is shorter than the norm. This shorter travel distance of the CM makes it a preferred choice for gamers who prioritize faster response times. On the other hand, some individuals may find the shorter travel distance of the CM to be too abrupt, and they may prefer the Polaris Purple for its longer travel distance, which provides a more satisfying depth when pressing down on a key. In conclusion, while the Polaris Purple has a longer travel distance, the CM offers a shorter travel distance for those seeking quicker responses.
Price comparison
Which switch is more bang for your buck?
The Gateron CM has an MSRP of $4.80 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the CM for $4.25.
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
In terms of sound, the Gateron CM linear switch is best known for its bassy, thocky, and low-pitched sound profile. These switches offer a deeper and richer sound during key presses, resembling the depth and richness associated with bass tones. The sound produced can be characterized by a lower frequency range, providing a satisfying and mellow tone. On the other hand, the SP-Star Polaris Purple tactile switch is described as having a neutral sound profile. This means it has a moderate sound profile, suitable for most intents and purposes. While the specific sound of a switch is also influenced by factors such as the keyboard board and keycaps, the CM switches are expected to deliver a deep and rich sound, while the Polaris Purple switches offer a more moderate and versatile audio experience.
When it comes to feel, the Gateron CM linear switch offers a buttery, polished, creamy, and frictionless typing experience. These switch descriptors indicate that the CM switches provide a smooth and fluid keystroke, with reduced friction and smooth key travel. The lube job done at the factory ensures effortless typing, as if the fingers glide gracefully across the keys, delivering a seamless and uniform sensation. On the other hand, the SP-Star Polaris Purple tactile switch is described as mild and polished when it comes to feel. This implies that the typing experience is gentle and approachable, falling within a safe middle-ground zone. The polished finish and reduced friction result in a sleek and refined typing experience with smooth key travel. Overall, the Gateron CM switches promise a buttery and frictionless feel, while the Polaris Purple switches offer a mildly tactile and polished typing experience.
Considering all the available information, the Gateron CM linear switches are known for their deep and rich sound signature, providing a bassy and thocky profile. The switches offer a buttery, polished, and frictionless feel, ensuring a seamless and effortless typing journey. On the other hand, the SP-Star Polaris Purple tactile switches deliver a neutral sound profile suitable for most purposes. The switches also offer a mild and polished feel, providing a gentle and refined typing experience. While the specific details of sound and feel may differ, both switches ensure a smooth and pleasant typing experience, with the Gateron CM focusing more on deep sound and buttery feel, and the Polaris Purple emphasizing a balanced sound and gentle tactility.
Conclusion
In closing, if you're looking for a smoother and bouncier typing experience with a rich and deep sound profile, the Gateron CM linear switch would be a great choice. Its full nylon housing and impeccable factory lube job ensure effortless gliding with each keystroke. On the other hand, if you prefer an exhilarating tactile typing experience with a snappy sound profile, the SP-Star Polaris Purple tactile switch is worth considering. Its big tactile bump provides a satisfying feel, and the switch has a polished finish for smooth key travel. Ultimately, the decision between these two switches comes down to your personal preference for either a linear or tactile feel, as well as your desired sound profile. Both switches offer different qualities that cater to different typing preferences, so consider your typing style and preferences when making a choice.
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