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Lemokey X4 QMK Wired Mechanical Keyboard

Keychron X4 Mechanical Keyboard

The Keychron X4 is a wired 75% mechanical keyboard designed for users who want a balance between compact layout and full functionality. It suits gamers needing low input latency and typists who prefer a flexible typing experience with customizable firmware. Its gasket mount design and high polling rate support both work and gaming environments.</p... Read more
Compare prices from $34.00 to $42
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Compare Keychron X4 vs Keychron V4 vs Skyloong GK75 Specification

Compare similar keyboards side by side, or use the comparison table to compare all keyboards!
Keychron X4Keychron V4Skyloong GK75
85
Lemokey X4 QMK Wired Mechanical Keyboard
91
Keychron V4 QMK Custom Mechanical Keyboard ISO Layout Collection
79
SKYLOONG GK75 Rainbow Mechanical Knob Keyboard
0.0 (0)
5.0 (18)
4.0 (1)
  • Released in 2024
  • Built with the ANSI layout standard
  • Weighs about 712 g
  • Sized at 41 x 325 x 145 mm
  • Made with a ABS, Plastic case
  • Features ABS, PBT keycaps
  • Offers Yes, South-face, North-face RGB lighting
  • Available in a 60% layout
  • Built with the ISO, JIS, ANSI, ISO-DE layout standard
  • Provides dedicated media keys
  • Supports VIA configuration
  • Uses a Tray Mount mounting style
  • Weighs about 730 g
  • Sized at 20 x 117 x 304 mm
  • Made with a Plastic, ABS case
  • Features ABS, PBT, keycaps
  • Offers Yes, Rgb, South-face, Rgb South-face RGB lighting
  • Has Tactile, Linear, Clicky, Silent switch options
  • Built with the ANSI, ISO layout standard
  • Supports Bluetooth, 2.4 GHz, Wired, Wireless, Wired only connectivity
  • Equipped with a 4000 mAh battery
  • Weighs about 1200 g
  • Sized at 36 x 323 x 41 mm
  • Made with a ABS, Aluminum case
  • Features PBT, ABS keycaps
  • Offers Yes, Rgb, White, North-face, Rgb North-face RGB lighting
Scores
  • Performance: 74
  • Build Quality: 81.5
  • Productivity: 95
  • Customizability: 83.2
  • Portability: 64.8
Scores
  • Performance: 66.6
  • Build Quality: 86.1
  • Productivity: 94.6
  • Customizability: 99.8
  • Portability: 74.5
Scores
  • Performance: 62.6
  • Build Quality: 72
  • Productivity: 86.8
  • Customizability: 82.8
  • Portability: 82.2
Name
Keychron X4
Name
Keychron V4
Name
Skyloong GK75
Release year
2024
Release year
2022
Release year
2022
Switch Options
Linear, Tactile, Clicky
Switch Options
Linear, Tactile, Clicky
Switch Options
Tactile, Linear, Clicky, Silent
Profile
Normal Profile
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Hot Swappable
 
Layout Size
75%
Layout Size
60%
Layout Size
75%
Layout Standard
ANSI
Layout Standard
ISO, JIS, ANSI, ISO-DE
Layout Standard
ANSI, ISO
Layout Ergonomics
Normal
Layout Ergonomics
Normal
Layout Ergonomics
Normal
Knob Support
 
Knob Support
 
Knob Support
 
Display Support
 
Display Support
 
Display Support
 
Mac/Win Support
 
Mac/Win Support
 
Mac/Win Support
 
Multi-Media Keys
 
Multi-Media Keys
 
Multi-Media Keys
 
USB-C
 
USB-C
 
USB-C
 
USB passthrough
 
USB passthrough
 
USB passthrough
 
Connection
Wired, Wired only
Connection
Wired, Wired only
Connection
Bluetooth, 2.4 GHz, Wired, Wireless, Wired only
Polling Rate
1000 Hz
Polling Rate
1000 Hz
Polling Rate
-
Battery capacity
-
Battery capacity
-
Battery capacity
4000 mAh
Hall Effect Support
 
Hall Effect Support
 
Hall Effect Support
 
QMK Support
 
QMK Support
 
QMK Support
 
VIA Support
 
VIA Support
 
VIA Support
 
VIAL Support
 
VIAL Support
 
VIAL Support
 
N-Key Rollover
 
N-Key Rollover
 
N-Key Rollover
 
Rapid Trigger
 
Rapid Trigger
 
Rapid Trigger
 
Mount Style
Gasket Mount
Mount Style
Tray Mount
Mount Style
Gasket Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
South-face, North-face
Backlight
 
Rgb, South-face
Backlight
 
Rgb, White, North-face
Case Colors
Case Colors
Case Colors
Case Material
ABS, Plastic
Case Material
Plastic, ABS
Case Material
ABS, Aluminum
Keycaps Material
ABS, PBT
Keycaps Material
ABS, PBT,
Keycaps Material
PBT, ABS
Dimensions
41 x 325 x 145 mm
Dimensions
20 x 117 x 304 mm
Dimensions
36 x 323 x 41 mm
Weight
712g
Weight
730g
Weight
1200g
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Product Description

The Keychron X4 is a wired 75% mechanical keyboard designed for users who want a balance between compact layout and full functionality. It suits gamers needing low input latency and typists who prefer a flexible typing experience with customizable firmware. Its gasket mount design and high polling rate support both work and gaming environments.

Key Features

  • 1000 Hz polling rate reduces input delay, beneficial for fast-paced gaming.
  • QMK open-source firmware allows extensive key remapping, macros, and lighting customization through a web app.
  • Two keycap options: OEM profile ABS or Cherry profile PBT, both double-shot for durability and shine-through lighting.
  • Multiple red backlight modes provide visual variety without overwhelming brightness.
  • Pre-lubed Keychron mechanical switches offer a smooth and consistent typing feel out of the box.

Build Quality

  • Gasket mount with a polycarbonate plate improves typing acoustics and adds slight flex for comfort.
  • ABS plastic case with an aluminum knob combines lightweight construction with a tactile control element.
  • Adjustable typing angles (4°, 8°, 10°) and curved keycaps support ergonomic hand positioning for extended use.
  • Plate-mounted stabilizers reduce key wobble on larger keys.

Connectivity and Compatibility

  • Wired USB Type-C connection ensures stable and low-latency input.
  • Compatible with Windows, macOS, and Linux systems, supporting broad user environments.
  • Cable routing options on the case allow flexible desk setups.

Typing Experience

  • Gasket mount design softens keystroke impact, reducing finger fatigue and producing a quieter sound profile.
  • Pre-lubed switches enhance smoothness, though clicky switch lubrication is not included.
  • Keycap profile choice affects typing feel and sound; ABS keycaps may wear faster than PBT.

Trade-offs

  • No wireless connectivity, limiting portability and multi-device use.
  • Backlighting limited to red LEDs, which may not suit users wanting full RGB customization.
  • ABS plastic case may feel less sturdy compared to metal alternatives.
  • Unknown noise level compared to other gasket mount keyboards, so sound preference may vary.

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