Kailh Plum vs. SP-Star RedBlue
An in-depth look at the Kailh Plum and the SP-Star RedBlue switches—which one is the best fit for you?
Overview
When it comes to mechanical keyboard switches, there are a plethora of options to choose from, each with its own unique characteristics and user preferences. Two popular choices amongst enthusiasts are the Kailh Plum, a tactile switch, and the SP-Star RedBlue, a linear switch. The Plum is best known for its unique combination of weightiness and minimal tactile feedback, creating a distinctive typing experience. On the other hand, the RedBlue offers a medium-light typing experience with a higher-pitched sound profile. While these general pointers give a glimpse into the differences between the two switches, let's dive in a bit deeper beyond generalities so you can better decide on the best switch for you.
By the numbers
Technical specifications
Actuation force
N/A
Actuation force
N/A
Bottom-out force
70g
Bottom-out force
57g
Pre-travel
1.70 mm
Pre-travel
2.00 mm
Total travel
3.60 mm
Total travel
4.00 mm
Factory lubed
No
Factory lubed
Yes
Stem construction
Standard
Stem construction
Standard
Stem material
POM
Stem material
POM
Top housing material
Polycarbonate
Top housing material
Polycarbonate
Bottom housing material
Nylon
Bottom housing material
Polycarbonate
Mount type
Plate (3-pin)
Mount type
PCB (5-pin)
Spring
Stainless steel
Spring
Gold plated
Housing materials
The Kailh Plum and SP-Star RedBlue switches have similar housing materials. Both switches feature a polycarbonate top housing, which results in a sharper, higher-pitched, and crisper sound profile. This is due to polycarbonate being a stiffer plastic, creating a more clear and resonant sound. Additionally, the translucency of polycarbonate is especially useful for switches with RGB lighting. Therefore, both switches will provide a similar sound experience when pressing down on the keys.
However, the major difference between the two switches lies in their bottom housing materials. The Plum switch utilizes a nylon bottom housing, while the RedBlue switch has a polycarbonate bottom housing. Typing on switches with a nylon bottom housing produces a deeper and fuller sound profile. Nylon is a softer plastic that absorbs more sound, resulting in a duller and rounder sound. On the other hand, the polycarbonate bottom housing of the RedBlue switch contributes to a sharper and crisper sound profile.
When pressing down on the switches, the qualities of the bottom housing material will play a significant role in the bottom-out sound and feel. Since the Plum switch has a nylon bottom housing, it will provide a deeper and fuller sound when keys are pressed. Conversely, the RedBlue switch's polycarbonate bottom housing will contribute to a sharper and crisper sound experience. However, when letting go of a key, the impact on the sound will mainly depend on the qualities of the top housing material. Therefore, the differences in the bottom housing materials will result in distinct sound characteristics between the two switches.
Weight
When comparing the actuation force and bottom out force of the Kailh Plum tactile switch and the SP-Star RedBlue linear switch, their weight is worth considering. The actuation force of the Plum is unavailable, while the RedBlue also has an unavailable actuation force. Both switches have a bottom out force, with the Plum being heavier at 70 grams, which is considered medium-heavy, and the RedBlue being lighter at 57 grams, which is medium-light.
For those who prefer a lighter typing experience, the RedBlue switch would be the better option, as its bottom out force is lighter than the Plum. This lighter weight allows for longer periods of comfortable typing, which is advantageous for those who use their keyboard extensively at work or during long gaming sessions. On the other hand, individuals seeking a more substantial typing experience may prefer the Plum switch, with its heavier bottom out force. The increased force required provides a stronger push feel, adding to the tactile feedback and overall typing satisfaction.
Although the specific actuation forces of both switches are unknown, it is reasonable to assume that they provide comparable results. This means that users can expect similar sensitivity when triggering keystrokes with either switch. Ultimately, the decision between the Kailh Plum tactile switch and the SP-Star RedBlue linear switch will depend on individual preference regarding the desired typing experience and weight preference.
Travel distance
When comparing the travel distance of the Kailh Plum tactile switch and the SP-Star RedBlue linear switch, it is clear that the Plum has a shorter travel distance of 3.6 mm, while the RedBlue has a slightly longer travel distance of 4 mm. The Plum falls on the shorter end of the spectrum, which is highly preferred by gamers who value faster response times. On the other hand, the RedBlue switch offers a slightly deeper key press experience with its longer travel distance. It is important to consider personal preferences when choosing between the two switches. If quick responsiveness is a priority, the Plum would be the ideal choice. However, if a more substantial key press is desired, the RedBlue switch with its longer travel distance would be the better option. Ultimately, both switches offer unique experiences, catering to different preferences and requirements.
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 Kailh Plum comes in at $6.25 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 comparing the sound qualities of the Kailh Plum tactile switch and the SP-Star RedBlue linear switch, we can see some differences. The Plum switch is best known for its neutral sound profile, which means it has a moderate sound intensity and is enjoyable to listen to. On the other hand, the RedBlue switch has a relatively higher-pitched sound and is described as low-pitched, which means it has a more bass-heavy and mellow tone. Both switches have a neutral sound profile, meaning they have a moderate actuation force requirement and a moderate sound profile, making them suitable for most settings, whether at home or work. It's important to note that the sound produced by a switch is also influenced by factors such as the keyboard board and keycaps chosen.
In terms of feel, the Plum switch is characterized by its weightiness and unique lack of a huge tactile bump. This means that while it feels hefty, it does not provide an intense tactile feedback. It is described as a mild switch, offering a gentle typing experience that most people will find approachable and comfortable. Additionally, the Plum switch is classified as a stepped switch, which means it has two stages of tactility. This differs from hypertactile switches where the entire keystroke is a big bump. Stepped switches have some pre-travel and/or post-travel, providing a more mild tactile experience.
On the other hand, the RedBlue switch is known for offering a medium-light typing experience. Like the Plum switch, it is also categorized as a mild switch, making it comfortable for most typists. It is described as polished, indicating a smooth and refined finish. This results in a sleek typing experience with reduced friction and smooth key travel.
In conclusion, the Plum and RedBlue switches offer distinct subjective qualities. The Plum switch has a neutral sound profile and a unique weightiness without a huge tactile bump. It provides a mild typing experience with stepped tactility. On the other hand, the RedBlue switch has a relatively higher-pitched sound profile and offers a medium-light typing experience. It is also a mild switch with a polished finish for smooth key travel. Despite their differences, both switches have a moderate actuation force requirement and a neutral sound profile, making them suitable for a wide range of users. If you prefer the qualities of one switch, you can expect similar results with the other in terms of sound and feel, although there may be some nuanced differences.
Conclusion
In closing, when choosing between the Kailh Plum tactile switch and the SP-Star RedBlue linear switch, there are a few key factors to consider.
If you prefer a medium-heavy switch with a unique tactile experience and a neutral sound profile, the Plum switch may be the right choice for you. Despite its weight, it doesn't feature a prominent tactile bump, making it stand out among other tactile switches. The sound profile is neutral and enjoyable, making it suitable for various purposes. On the other hand, if you prefer a medium-light typing experience with a higher-pitched sound, the RedBlue switch is worth considering. It provides a lighter bottom out force and is particularly suited for those who prefer a smooth linear typing feel. The sound profile of the RedBlue switch is relatively higher-pitched.
Overall, if you value a medium-heavy, unique tactile experience with a neutral sound profile, go for the Kailh Plum tactile switch. But if you prioritize a medium-light typing experience with a higher-pitched sound, the SP-Star RedBlue linear switch would be a better fit. Ultimately, the choice between these switches depends on your personal typing preferences.
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