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Compare Keychron K3 QMK V3 vs Redragon PENUMBRA K687 HE Differences Side by Side

Explore the comprehensive side-by-side comparison of the Keychron K3 QMK V3 and Redragon PENUMBRA K687 HE 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.

77
Keychron K3 QMK Wireless Mechanical Keyboard (ISO Layout) - Version 3
70
PENUMBRA K687 HE Rapid Trigger Gaming Keyboard

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  • Released in 2024
  • Has Tactile, Linear switch options
  • Features a low-profile design
  • Supports hot-swappable switches
  • Built with the ISO, ISO-DE, ISO-Nordic, ISO-UK, ANSI layout standard
  • Provides dedicated media keys
  • Supports QMK firmware
  • Features N-key rollover
  • Uses a Plate Mount mounting style
  • Supports Bluetooth, Wired, Wireless connectivity
  • Runs at a 1000 Hz polling rate
  • Equipped with a 1550 mAh battery
  • Weighs about 540 g
  • Sized at 19 x 306 x 116 mm
  • Made with a ABS, Aluminum case
  • Features ABS keycaps
  • Offers Yes, Rgb, North-face, Rgb North-face RGB lighting
  • Released in 2025
  • Has Magnetic switch options
  • Built with the ANSI layout standard
  • Comes with a knob
  • Enables rapid trigger functionality
  • Has built-in sound dampening
  • Uses a Gasket Mount mounting style
  • Supports Wired, Wired only connectivity
  • Weighs about 1500 g
  • Sized at 43 x 334 x 140 mm
  • Made with a Aluminum case
  • Features PBT keycaps
  • Offers Yes, Rgb RGB lighting
Scores
  • Performance: 84.6
  • Build Quality: 71.5
  • Productivity: 74
  • Customizability: 79.4
  • Portability: 77.6
Scores
  • Performance: 86.6
  • Build Quality: 70.2
  • Productivity: 78.1
  • Customizability: 55.8
  • Portability: 60.8
Name
Keychron K3 QMK V3
Name
Redragon PENUMBRA K687 HE
Release year
2024
Release year
2025
Switch Options
Tactile, Linear
Switch Options
Magnetic
Profile
Low Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
75%
Layout Size
75%
Layout Standard
ISO, ISO-DE, ISO-Nordic, ISO-UK, ANSI
Layout Standard
ANSI
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, Wired, Wireless
Connection
Wired, Wired only
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
Plate Mount
Mount Style
Gasket Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb, North-face
Backlight
 
Rgb
Case Colors
Case Colors
Case Material
ABS, Aluminum
Case Material
Aluminum
Keycaps Material
ABS
Keycaps Material
PBT
Dimensions
19 x 306 x 116 mm
Dimensions
43 x 334 x 140 mm
Weight
540g
Weight
1500g
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