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LANGTU LT84 Display Screen Mechanical Keyboard

LANGTU LT84 Mechanical Keyboard

The LANGTU LT84 is a compact 75% mechanical keyboard designed for users who want versatile connectivity and easy customization. It suits hobbyists who value hot-swappable switches and a unique control interface, as well as users who prefer a smaller layout with multimedia controls integrated into a multifunction knob. Its wireless and wired options make it adaptable for different setups, while the RGB lighting and display screen add visual customization.</p... Read more
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Compare LANGTU LT84 vs Gamakay TK75HE V2 vs Yunzii AL80 Specification

Compare similar keyboards side by side, or use the comparison table to compare all keyboards!
LANGTU LT84Gamakay TK75HE V2Yunzii AL80
68
LANGTU LT84 Display Screen Mechanical Keyboard
-10% off
76
Gamakay TK75HE V2 Hall Effect keyboard 8K Polling Rate 0.005mm RT Accuracy
88
YUNZII AL80 QMK/VIA Aluminum LCD Mechanical Keyboard
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  • Released in 2023
  • Includes a Yes display
  • Uses a Sandwich Mount mounting style
  • Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity
  • Sized at 29 x 138 x 362 mm
  • Has Magnetic switch options
  • Built with the ISO, ISO-DE, ISO-UK, ANSI layout standard
  • Includes a Yes, TFT display
  • Utilizes Hall effect sensors
  • Uses a Top Mount mounting style
  • Supports Wired, Wireless connectivity
  • Runs at a 8000 Hz polling rate
  • Equipped with a 4000 mAh battery
  • Weighs about 840 g
  • Sized at 20 x 325 x 136 mm
  • Made with a ABS case
  • Has Linear switch options
  • Includes a Yes, LCD display
  • Supports QMK firmware
  • Supports VIA configuration
  • Uses a Gasket Mount mounting style
  • Supports Bluetooth, 2.4 GHz, Wired, Wireless, Wired only connectivity
  • Runs at a 1000 Hz polling rate
  • Equipped with a 6000 mAh battery
  • Weighs about 1438.5 g
  • Sized at 41 x 138 x 314 mm
  • Made with a Aluminum case
  • Offers Yes, Rgb, South-face, Rgb South-face RGB lighting
Scores
  • Performance: 74.4
  • Build Quality: 49.8
  • Productivity: 83.2
  • Customizability: 73.3
  • Portability: 77.4
Scores
  • Performance: 98.6
  • Build Quality: 63.2
  • Productivity: 83
  • Customizability: 73.1
  • Portability: 79.8
Scores
  • Performance: 69.3
  • Build Quality: 80
  • Productivity: 92.9
  • Customizability: 92.3
  • Portability: 91.4
Name
LANGTU LT84
Name
Gamakay TK75HE V2
Name
Yunzii AL80
Release year
2023
Release year
2025
Release year
2025
Switch Options
-
Switch Options
Magnetic
Switch Options
Linear
Profile
Normal Profile
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Hot Swappable
 
Layout Size
75%
Layout Size
75%
Layout Size
75%
Layout Standard
ANSI
Layout Standard
ISO, ISO-DE, ISO-UK, ANSI
Layout Standard
ANSI
Layout Ergonomics
Normal
Layout Ergonomics
Normal
Layout Ergonomics
Normal
Knob Support
 
Knob Support
 
Knob Support
 
Display Support
 
Display Support
 
TFT
Display Support
 
LCD
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
Bluetooth, 2.4 GHz, Wired, Wireless
Connection
Wired, Wireless
Connection
Bluetooth, 2.4 GHz, Wired, Wireless, Wired only
Polling Rate
-
Polling Rate
8000 Hz
Polling Rate
1000 Hz
Battery capacity
-
Battery capacity
4000 mAh
Battery capacity
6000 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
Sandwich Mount
Mount Style
Top Mount
Mount Style
Gasket Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb
Backlight
 
Rgb
Backlight
 
Rgb, South-face
Case Colors
Case Colors
Case Colors
Case Material
-
Case Material
ABS
Case Material
Aluminum
Keycaps Material
PBT
Keycaps Material
PBT
Keycaps Material
PBT
Dimensions
29 x 138 x 362 mm
Dimensions
20 x 325 x 136 mm
Dimensions
41 x 138 x 314 mm
Weight
-
Weight
840g
Weight
1438.5g
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Product Description

The LANGTU LT84 is a compact 75% mechanical keyboard designed for users who want versatile connectivity and easy customization. It suits hobbyists who value hot-swappable switches and a unique control interface, as well as users who prefer a smaller layout with multimedia controls integrated into a multifunction knob. Its wireless and wired options make it adaptable for different setups, while the RGB lighting and display screen add visual customization.

Key Features

  • Unique color display screen shows active settings and supports custom GIF uploads for personalization.
  • Multifunction metallic knob controls volume, brightness, connection modes, and system switching, reducing reliance on key combos.
  • Full-key hot-swappable sockets allow easy switch replacement without soldering, supporting most aftermarket switches.
  • Dynamic RGB lighting with 19 effects and side RGB strips enhances visual feedback and ambiance.
  • Three-mode connectivity offers Bluetooth, 2.4GHz wireless, and wired USB-C options for flexible device pairing.

Typing Experience and Build

  • Equipped with factory-lubed Sea-Air V3 linear switches, providing smooth keypresses with fast response.
  • Triple-layer sound-shock absorbing design reduces typing noise and vibration through EVA cotton, rubber, and silicone padding.
  • Sandwich structure and finely-tuned stabilizers improve typing comfort and key stability.

Compatibility

  • Supports Windows and Mac operating systems with dual-system switching via the knob.
  • 84-key 75% layout balances compactness with access to essential keys, suitable for users needing a smaller footprint without losing key functionality.

Trade-offs

  • The multifunction knob and display add complexity that may not appeal to users preferring minimalistic designs.
  • Unknown battery life duration despite claims of extra-long usage.
  • Switches are linear only, which may not suit users who prefer tactile or clicky feedback.

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