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Compare Keychron K3 Pro vs NIUNIU @40 Differences Side by Side

Explore the comprehensive side-by-side comparison of the Keychron K3 Pro and NIUNIU @40 and view their biggest differences. The detailed comparison table allows you to see all the essential features, specifications, and benefits of each keyboard at a glance. Whether you're looking for performance, value, or specific functionalities, this comparison tool helps you make an informed decision.

87
Keychron K3 Pro QMK/VIA Wireless Mechanical Keyboard ISO Layout Collection
78
[Pre-Order] @40 40% Low Profile Keyboard Kit by Niuniu

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4.7 (52)
4.5 (4)
  • Released in 2022
  • Has Linear, Tactile, Clicky switch options
  • Available in a 75% layout
  • Built with the ISO, JIS, ISO-DE, ISO-ES, ISO-FR, ISO-Nordic, ISO-SW, ISO-UK, ANSI layout standard
  • Offers Normal ergonomics
  • Compatible with both Mac and Windows
  • Provides dedicated media keys
  • Supports QMK firmware
  • Supports VIA configuration
  • Features N-key rollover
  • Uses a Tray Mount mounting style
  • Supports Bluetooth, Wired, Wireless, 2.4 GHz connectivity
  • Runs at a 1000 Hz polling rate
  • Equipped with a 1550 mAh battery
  • Weighs about 930 g
  • Sized at 15 x 306 x 116 mm
  • Made with a Aluminum, Plastic, ABS case
  • Features ABS, PBT keycaps
  • Offers Yes, Rgb, South-face, Rgb South-face, White, North-face, Rgb North-face, White North-face RGB lighting
  • Released in 2025
  • Available in a 40% layout
  • Built with the ANSI layout standard
  • Offers Ortholinear ergonomics
  • Supports VIAL configuration
  • Includes screw-in stabilizers
  • Has built-in sound dampening
  • Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity
  • Made with a Aluminum case
  • Offers No RGB lighting
Scores
  • Performance: 81.1
  • Build Quality: 81.5
  • Productivity: 80
  • Customizability: 89.3
  • Portability: 77.2
Scores
  • Performance: 46.7
  • Build Quality: 80.6
  • Productivity: 80.8
  • Customizability: 75.6
  • Portability: 82.9
Name
Keychron K3 Pro
Name
NIUNIU @40
Release year
2022
Release year
2025
Switch Options
Linear, Tactile, Clicky
Switch Options
-
Profile
Low Profile
Profile
Low Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
75%
Layout Size
40%
Layout Standard
ISO, JIS, ISO-DE, ISO-ES, ISO-FR, ISO-Nordic, ISO-SW, ISO-UK, ANSI
Layout Standard
ANSI
Layout Ergonomics
Normal
Layout Ergonomics
Ortholinear
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, Wired, Wireless, 2.4 GHz
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate
1000 Hz
Polling Rate
-
Battery capacity
1550 mAh
Battery capacity
-
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
Tray Mount
Mount Style
-
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb, South-face, White, North-face
Backlight
 
Case Colors
Case Colors
Case Material
Aluminum, Plastic, ABS
Case Material
Aluminum
Keycaps Material
ABS, PBT
Keycaps Material
-
Dimensions
15 x 306 x 116 mm
Dimensions
-
Weight
930g
Weight
-
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