AULA vs GravaStar: Mechanical Keyboards Compared by Specs
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When you compare the AULA vs GravaStar mechanical keyboard options, you see two very different approaches to typing. Both models offer RGB backlighting and wireless connectivity for flexible use. The main difference lies in their construction and switch technology. AULA uses a membrane layout with a numeric keypad, while GravaStar provides a compact 75% design with genuine mechanical switches and an aluminum frame. This guide breaks down the specs to help you decide.
Key differences
| Aspect | AULA 99-Key Wireless Keyboard | GravaStar Mercury 75% Wireless Keyboard |
|---|---|---|
| Switch Type | Membrane | GravaStar x Kailh linear |
| Form Factor | 96% with numpad | 75% compact |
| Connectivity | Bluetooth | Wired USB-C, Bluetooth 5.0, 2.4GHz |
| Case Material | not listed | Aluminum alloy |
| Mounting Style | not listed | Gasket-mounted |
Which one should you choose?
Choose AULA 99-Key Wireless Keyboard if
- You need a full-size layout with a dedicated number pad for data entry.
- You prefer the tactile feel of membrane switches over mechanical ones.
- You want a keyboard that includes a dual-mode rotary knob for volume and lighting.
Choose GravaStar Mercury 75% Wireless Keyboard if
- You prioritize a premium aluminum build and gasket-mounted typing feel.
- You want tri-mode connectivity including a low-latency 2.4GHz wireless option.
- You prefer a compact 75% footprint that saves desk space.
Verdict: Choose the AULA model if you require a numeric keypad and a membrane typing experience with a rotary knob. Select the GravaStar Mercury K1 if you want a compact, high-quality mechanical keyboard with tri-mode connectivity and an aluminum chassis.
AULA vs GravaStar Spec Comparison
switch type
The AULA 99-Key uses a membrane switch mechanism, which relies on rubber domes to register keystrokes. This design typically offers a softer, quieter feel with less tactile feedback. In contrast, the GravaStar Mercury K1 features exclusive GravaStar x Kailh linear mechanical switches. These provide a smooth, consistent travel with a 40gf actuation force and 1.5mm pre-travel. Mechanical switches generally deliver faster response times and a more distinct typing rhythm. If you prefer the crisp, responsive feedback of mechanical action, the GravaStar Mercury K1 is the superior choice for this category.
form factor
Layout size significantly impacts desk space and functionality. The AULA model offers a 96% full-size layout, which includes a dedicated numeric keypad. This is ideal if you frequently enter numbers for spreadsheets or data entry. The GravaStar Mercury K1 adopts a compact 75% form factor. It removes the numpad and often condenses function keys to save desk real estate. This compact design allows for more mouse movement room. If your workflow requires a number pad, the AULA layout is more practical. For those prioritizing a cleaner, smaller footprint, the GravaStar option is better.
connectivity
Both keyboards support wireless use, but the GravaStar Mercury K1 offers more versatile connection options. It supports tri-mode connectivity, including wired USB-C, Bluetooth 5.0, and a 2.4GHz wireless receiver. This allows you to switch seamlessly between devices or use it as a wired peripheral. The AULA keyboard lists Bluetooth as its primary wireless mode. While it mentions multi-device connection for up to five devices, it does not explicitly list a 2.4GHz dongle or wired USB-C option in its key specs. The GravaStar provides greater flexibility for different setup needs.
build quality
Construction materials affect durability and typing sound. The GravaStar Mercury K1 features an aluminum alloy exoskeleton with a gradient black finish. This metal frame provides structural stability and a premium feel. It also utilizes a gasket-mounted design with a polycarbonate plate and five layers of sound-dampening foam. This setup absorbs vibrations and creates a softer, more acoustic typing experience. The AULA keyboard specifications do not list metal construction or gasket mounting. Its build appears to be standard plastic. For users seeking robust materials and improved acoustics, the GravaStar Mercury K1 has a clear advantage.
media controls
Convenient access to volume and lighting settings can enhance daily use. The AULA keyboard includes a dual-mode rotary knob on the device. This knob allows you to easily adjust volume, audio levels, and lighting brightness or speed without using software. It also supports macro creation for lighting effects. The GravaStar Mercury K1 specifications do not mention a physical rotary knob for media control. Instead, it relies on software personalization for lighting adjustments and likely keyboard combinations for volume. If you prefer physical, tactile controls for quick adjustments, the AULA keyboard is the better option.
weight
Keyboard weight influences stability during typing and portability. The AULA 99-Key weighs 2.64 pounds, while the GravaStar Mercury K1 weighs 2.34 pounds. The AULA is slightly heavier, which may help keep it stable on the desk during vigorous typing. However, the GravaStar uses an aluminum alloy frame, which often provides better stability relative to its weight compared to plastic constructions. The AULA's extra weight comes from its larger size and membrane construction. Both weights are sufficient for general use. The difference is minimal, making this a tie in terms of practical impact for most users.
Choose the right keyboard for you
Typists needing a full number pad
The AULA S99 offers a 96% layout with a dedicated numeric keypad. This full-size configuration suits users who enter numbers frequently. Its foldable kickstand allows you to adjust the tilt angle for better posture. The membrane switches provide a softer feel, which may reduce fatigue during long data entry sessions.
Gamers wanting precise linear switches
The GravaStar Mercury K1 uses exclusive GravaStar x Kailh linear switches. These offer a 40gf actuation force and quick 1.5mm pre-travel for fast reactions. The gasket-mounted design with sound dampening foam absorbs impact vibrations. This construction minimizes noise and provides a smooth, responsive typing experience ideal for intense gaming sessions.
Users valuing durable aluminum construction
GravaStar builds the Mercury K1 with a unique aluminum alloy exoskeleton. This material combines strength and lightness for symmetrical stability. The polycarbonate plate and flexible structure enhance durability. In contrast, the AULA model does not list metal materials. If you prefer a rigid, premium-feeling chassis that resists flex, the aluminum design is a clear advantage.
Buyers seeking maximum connectivity options
The GravaStar Mercury K1 supports tri-mode connectivity including wired USB-C, Bluetooth 5.0, and 2.4GHz wireless. This allows seamless switching between multiple devices. The AULA model lists Bluetooth connectivity but does not mention 2.4GHz or wired modes. If you need a wired backup or ultra-low latency wireless, the GravaStar offers more versatile connection choices.
The products compared
AULA 99-Key Wireless Keyboard
Best for: Multi-device users needing a full-size layout
- Switch Type
- Membrane
- Form Factor
- 96%
- Connectivity
- Bluetooth
- Backlighting
- RGB
- Dimensions
- 17.4 × 7.25 × 2 inches
- Weight
- 2.64 pounds
View on Amazon: AULA 99-Key Wireless Keyboard Affiliate link
The AULA S99 is a full-size 96% membrane keyboard with Bluetooth connectivity. It features RGB backlighting and a dual-mode rotary knob for volume and lighting adjustments. The device supports multi-device connection, binding up to five devices simultaneously. It includes a foldable kickstand for ergonomic typing angles and programmable M1/M2/M3 buttons. This setup suits users who want a retro aesthetic with flexible connectivity options.
Pros
- 96% layout with integrated number pad
- Bluetooth multi-device connection for up to 5 devices
- Dual-mode rotary knob for volume and lighting control
- RGB backlighting with adjustable brightness and speed
- Foldable 2-stage kickstand for ergonomic adjustment
Cons
- Membrane switch type offers less tactile feedback than mechanical switches
- No wired USB connection option listed in specifications
- Heavier at 2.64 pounds compared to compact alternatives
Good fit if
- You need a full-size keyboard with a number pad for data entry
- You want to switch between multiple devices without re-pairing
- You prefer tactile control via a physical rotary knob
Skip if
- You require mechanical switches for faster actuation
- You need a wired connection for zero-latency gaming
- You prefer a compact 60% or 75% layout
Verdict: The AULA S99 96% Membrane Keyboard is a solid choice for users who prioritize multi-device connectivity and a full-size layout with a number pad. It fits best for those who value physical controls and a retro design over mechanical switch performance.
GravaStar Mercury 75% Wireless Keyboard
Best for: Users seeking a premium aluminum build and gasket mount
- Switch Type
- GravaStar x Kailh linear
- Form Factor
- 75%
- Connectivity
- USB-C, Bluetooth 5.0, 2.4GHz
- Backlighting
- RGB
- Case Material
- Aluminum alloy
- Hot-Swap Support
- Hot-Swappable
View on Amazon: GravaStar Mercury 75% Wireless Keyboard Affiliate link
The GravaStar Mercury K1 is a 75% mechanical keyboard with a unique aluminum alloy exoskeleton. It uses GravaStar x Kailh linear switches with a 40gf actuation force and 1.5mm pre-travel. The gasket-mounted design includes five layers of sound-dampening foam for acoustics. You get tri-mode connectivity via wired USB-C, Bluetooth 5.0, and 2.4GHz wireless. Dual independent RGB systems offer 16.8 million colors. This build suits users who want a sturdy, stylish typing experience.
Pros
- Aluminum alloy exoskeleton for structural strength
- Gasket-mounted design with five layers of sound-dampening foam
- Tri-mode connectivity including Bluetooth 5.0 and 2.4GHz wireless
- GravaStar x Kailh linear switches with 40gf actuation force
- Dual independent RGB lighting with 16.8 million colors
Cons
- Heavier at 2.34 pounds compared to plastic alternatives
- No mention of hot-swappable sockets for easy switch replacement
- Requires dedicated software for full personalization
Good fit if
- You want a durable aluminum frame for your desk
- You need wireless flexibility with Bluetooth and 2.4GHz options
- You prefer a gasket-mounted feel with sound dampening
Skip if
- You need hot-swappable switches for quick customization
- You prefer a lighter, more portable keyboard under 2 pounds
- You want plug-and-play use without installing software
Verdict: GravaStar Mercury K1 Aluminum 75% Keyboard is a solid choice for users who prioritize build quality and acoustic tuning. Its aluminum frame and gasket mount provide a premium feel, while tri-mode connectivity ensures it fits various setups. It is ideal for those who value a distinct aesthetic and smooth linear typing.
Specifications side by side
| Spec | AULA 99-Key Wireless Keyboard | GravaStar Mercury 75% Wireless Keyboard |
|---|---|---|
| Switch Type | Membrane | GravaStar x Kailh linear |
| Form Factor | 96% | 75% |
| Connectivity | Bluetooth | USB-C, Bluetooth 5.0, 2.4GHz |
| Backlighting | RGB | RGB |
| Case Material | not stated | Aluminum alloy |
| Hot-Swap Support | not stated | Hot-Swappable |
| Mounting Style | not stated | Gasket Mount |
| Use | not stated | Gaming |
| Operating System | not stated | Mac, Windows |
| Dimensions | 17.4 × 7.25 × 2 inches | 13.5 × 6.14 × 1.81 inches |
| Weight | 2.64 pounds | 2.34 pounds |
| Color | Blue-Grey | Gradient Black |
| Model | S99 | Mercury K1 |
Frequently asked questions
Which AULA vs GravaStar keyboard has a number pad?
The AULA S99 includes a dedicated numeric keypad. It uses a 96% layout to fit a full number row. The GravaStar Mercury K1 is a 75% model and lacks a number pad. You should choose the AULA if you need frequent number entry for spreadsheets or data work.
How do the sizes of these two keyboards compare?
The AULA S99 is larger at 17.4 inches long. The GravaStar Mercury K1 is more compact at 13.5 inches long. You will need more desk space for the AULA model. The GravaStar design saves room for mouse movement or other peripherals on your desk surface.
What is the weight difference between the two models?
The AULA S99 weighs 2.64 pounds. The GravaStar Mercury K1 weighs 2.34 pounds. The AULA is slightly heavier due to its larger frame and membrane construction. The GravaStar uses an aluminum build but remains lighter overall. This difference affects portability and desk stability.
Does the GravaStar Mercury K1 support wireless connectivity?
Yes, the GravaStar Mercury K1 supports wireless connectivity. It offers tri-mode connection options for flexible use. You can pair it with multiple devices easily. This feature allows you to switch between your computer and tablet without cables.
Is the AULA S99 suitable for gaming?
The AULA S99 uses a membrane switch mechanism. It is generally better for typing than fast-paced gaming. The GravaStar Mercury K1 is explicitly listed for gaming use. Its aluminum build and gasket mount provide a different feel. You might prefer the GravaStar for responsive gaming inputs.
What color options are available for these keyboards?
The AULA S99 comes in Blue-Grey. The GravaStar Mercury K1 is available in Gradient Black. These colors offer distinct aesthetic choices for your setup. You can match the keyboard to your existing desk accessories or monitor stand. The GravaStar offers a darker, gradient finish.
Which keyboard has a more premium build material?
The GravaStar Mercury K1 features an aluminum frame. This provides a sturdy, premium feel compared to plastic options. The AULA S99 uses a membrane design with a retro aesthetic. If you value metal construction, the GravaStar is the better choice. Aluminum also helps with heat dissipation.

