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Compare Apos RO75 Compact Certified vs Keychron K2 Ultra Differences Side by Side

Explore the comprehensive side-by-side comparison of the Apos RO75 Compact Certified and Keychron K2 Ultra 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.

79
RO75 Compact Keyboard (Apos Certified)
93
Keychron K2 Ultra 8K Wireless Custom Mechanical Keyboard ISO Layout Collection

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0.0 (0)
5.0 (1)
  • Has Tactile switch options
  • Built with the ANSI layout standard
  • Supports VIAL configuration
  • Runs at a 1000 Hz polling rate
  • Equipped with a 6000 mAh battery
  • Weighs about 1680 g
  • Sized at 20 x 312 x 135 mm
  • Made with a Aluminum case
  • Features PBT, ABS keycaps
  • Offers Yes, Rgb RGB lighting
  • Has Tactile, Linear, Clicky switch options
  • Built with the ISO-ES, ISO-FR, ISO-IT, ISO, ANSI layout standard
  • Comes with a knob
  • Compatible with both Mac and Windows
  • Provides dedicated media keys
  • Supports QMK firmware
  • Features N-key rollover
  • Includes screw-in stabilizers
  • Runs at a 8000 Hz polling rate
  • Equipped with a 4000 mAh battery
  • Weighs about 1084 g
  • Sized at 31 x 312 x 122 mm
  • Made with a Aluminum, ABS case
  • Features PBT keycaps
  • Offers Yes, Rgb, White, South-face, Rgb South-face, White South-face RGB lighting
Scores
  • Performance: 70.4
  • Build Quality: 81.4
  • Productivity: 75.4
  • Customizability: 79.4
  • Portability: 90.5
Scores
  • Performance: 91.2
  • Build Quality: 86.4
  • Productivity: 97.7
  • Customizability: 95.2
  • Portability: 82
Name
Apos RO75 Compact Certified
Name
Keychron K2 Ultra
Release year
2026
Release year
2026
Switch Options
Tactile
Switch Options
Tactile, Linear, Clicky
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
75%
Layout Size
75%
Layout Standard
ANSI
Layout Standard
ISO-ES, ISO-FR, ISO-IT, ISO, 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, 2.4 GHz, Wired, Wireless
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate
1000 Hz
Polling Rate
8000 Hz
Battery capacity
6000 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, White, South-face, White South-face
Case Colors
Case Colors
Case Material
Aluminum
Case Material
Aluminum, ABS
Keycaps Material
PBT, ABS
Keycaps Material
PBT
Dimensions
20 x 312 x 135 mm
Dimensions
31 x 312 x 122 mm
Weight
1680g
Weight
1084g
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