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Compare GravaStar Mercury K1 vs Varmilo Minilo75 Pro Differences Side by Side

This comparison is for buyers deciding between two similarly priced, feature-rich 75% wireless keyboards. The choice is difficult because both offer gasket mounts, hot-swappable sockets, and tri-mode connectivity. The GravaStar Mercury K1 stands out with its all-aluminum construction and massive battery, while the Varmilo Minilo75 Pro counters with extensive layout support, advanced firmware, and a more comprehensive sound-dampening package.

67
GravaStar Mercury K1 Wireless Mechanical Keyboard
84
Minilo75 Pro

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  • Released in 2024
  • Has Linear switch options
  • Built with the ANSI layout standard
  • Equipped with a 8000 mAh battery
  • Weighs about 1080 g
  • Sized at 46 x 343 x 156 mm
  • Made with a Aluminum case
  • Offers Yes, Rgb RGB lighting
  • Released in 2025
  • Has Tactile, Linear, Silent, Clicky switch options
  • Built with the ANSI, ISO, ISO-BEL, ISO-CH, ISO-DE, ISO-DK, ISO-NO, ISO-IS, ISO-ES, ISO-IT, ISO-PT, ISO-FR, ISO-HU, ISO-SW, ISO-UK layout standard
  • Supports QMK firmware
  • Supports VIA configuration
  • Features N-key rollover
  • Has built-in sound dampening
  • Runs at a 1000 Hz polling rate
  • Equipped with a 4000 mAh battery
  • Weighs about 850 g
  • Sized at 37 x 388 x 140 mm
  • Made with a Plastic case
  • Features PBT keycaps
  • Offers Yes, Rgb, South-face, Rgb South-face RGB lighting
Scores
  • Performance: 65.7
  • Build Quality: 67.7
  • Productivity: 66.7
  • Customizability: 64.3
  • Portability: 92.3
Scores
  • Performance: 80
  • Build Quality: 75.6
  • Productivity: 88.7
  • Customizability: 87
  • Portability: 81.9
Name
GravaStar Mercury K1
Name
Varmilo Minilo75 Pro
Release year
2024
Release year
2025
Switch Options
Linear
Switch Options
Tactile, Linear, Silent, Clicky
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
75%
Layout Size
75%
Layout Standard
ANSI
Layout Standard
ANSI, ISO, ISO-BEL, ISO-CH, ISO-DE, ISO-DK, ISO-NO, ISO-IS, ISO-ES, ISO-IT, ISO-PT, ISO-FR, ISO-HU, ISO-SW, ISO-UK
Layout Ergonomics
Normal
Layout Ergonomics
Normal
Knob Support
 
Knob Support
 
Display Support
 
Display Support
 
Mac/Win Support
 
Mac/Win Support
 
Multi-Media Keys
 
Multi-Media Keys
 
USB-C
 
USB-C
 
USB passthrough
 
USB passthrough
 
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate
-
Polling Rate
1000 Hz
Battery capacity
8000 mAh
Battery capacity
4000 mAh
Hall Effect Support
 
Hall Effect Support
 
QMK Support
 
QMK Support
 
VIA Support
 
VIA Support
 
VIAL Support
 
VIAL Support
 
N-Key Rollover
 
N-Key Rollover
 
Rapid Trigger
 
Rapid Trigger
 
Mount Style
Gasket Mount
Mount Style
Gasket Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb
Backlight
 
Rgb, South-face
Case Colors
Case Colors
Case Material
Aluminum
Case Material
Plastic
Keycaps Material
-
Keycaps Material
PBT
Dimensions
46 x 343 x 156 mm
Dimensions
37 x 388 x 140 mm
Weight
1080g
Weight
850g
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Pros and Trade-offs

Your priority should guide your choice. If you value a premium metal build, distinctive lighting, and maximum battery life above all else, the GravaStar Mercury K1 is compelling. For users who need extensive software customization, quiet operation, low-latency gaming, or specific international layouts, the Varmilo Minilo75 Pro offers significantly more features and flexibility for a similar price.

GravaStar Mercury K1

  • +Full aluminum alloy case construction for a premium, solid feel.
  • +Large 8000mAh battery capacity for extended wireless use.
  • +Unique aesthetic with a three-sided 'streamer effect' RGB lighting design.
  • +Hot-swappable sockets support both 3-pin and 5-pin switches.
  • −Only available with linear switch types, limiting out-of-the-box tactile feedback options.
  • −Lacks detailed specification for polling rate or latency performance.
  • −No mention of advanced firmware support like QMK or VIA.
  • −Heavier weight (1080g) may not suit all users.

Varmilo Minilo75 Pro

  • +Extensive layout support for ANSI and numerous ISO regional variants.
  • +Full QMK and VIA firmware compatibility for deep key remapping and macros.
  • +Includes multiple sound-dampening materials like Poron foam, IXPE pad, and a PET sound dampener.
  • +Offers a choice of silent, clicky, tactile, and linear switch types from the factory.
  • −Plastic case construction, though it features a 4mm CNC metal inlay frame.
  • −Smaller 4000mAh battery compared to the Mercury K1.
  • −The vendor notes that some ISO keycaps are dye-sub instead of double-shot, which may affect backlight shine-through.

Which Keyboard Is Better for Your Needs?

The Varmilo Minilo75 Pro is the more versatile choice for most productivity-focused tasks, winning in Gaming, Office, Programming, and Modding due to its confirmed low-latency performance, quiet switch options, extensive customization software, and detailed internal construction. The GravaStar Mercury K1 takes the lead for Travel thanks to its larger battery capacity and more compact footprint. For Content Creation, the decision hinges on whether visual design or macro programmability is more important.

GamingVarmilo Minilo75 Pro
  • •The Varmilo Minilo75 Pro lists a 1000 Hz polling rate and 1ms latency in its 2.4 GHz and wired modes, which the manufacturer states is for competitive gaming.
  • •It features N-key rollover support, ensuring all keypresses are registered.
  • •The GravaStar Mercury K1 does not have its polling rate or latency specified in the provided information.
OfficeVarmilo Minilo75 Pro
  • •The Varmilo Minilo75 Pro offers silent switch options, such as the Kailh Prestige Silent, designed for quiet environments.
  • •It includes dedicated Mac OS keycaps and a system toggle, providing better out-of-the-box support for Mac users.
  • •Its vendor description highlights sound-dampening features like Poron and PET foam, which can reduce noise.
ProgrammingVarmilo Minilo75 Pro
  • •The Varmilo Minilo75 Pro supports QMK and VIA firmware for deep key remapping and macro creation.
  • •It offers extensive ISO layout support for over a dozen European languages, which is valuable for international developers.
  • •The inclusion of PBT keycaps provides better long-term durability against shine from frequent use.
TravelGravaStar Mercury K1
  • •The GravaStar Mercury K1 has a significantly larger 8000mAh battery, which should require less frequent charging.
  • •It is slightly shorter in length (343mm vs 388mm), which may fit more easily in a bag.
  • •Its aluminum case, while heavier, may offer more protection during transport.
ModdingVarmilo Minilo75 Pro
  • •The Varmilo Minilo75 Pro's construction is detailed with multiple foam layers (Poron plate foam, IXPE pad, Poron PCB foam) that can be removed or modified.
  • •QMK/VIA support allows for extensive firmware-level customization beyond physical changes.
  • •It supports a wider variety of switch types (silent, clicky, tactile, linear) out of the box for experimentation.
Content CreationTie
  • •Both keyboards offer RGB backlighting for visual customization in streams or videos.
  • •Both are hot-swappable, allowing creators to tailor the typing feel and sound.
  • •The GravaStar's unique 'streamer effect' lighting and aluminum design offer aesthetic appeal, while the Varmilo's macro programming via QMK/VIA can streamline editing workflows.

Frequently Asked Questions (FAQ)

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