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Compare Keychron C4 HE vs V6 Ultra Differences Side by Side

This comparison is for buyers choosing between two full-size Keychron boards with 8000 Hz polling but very different priorities. The C4 HE is a wired-only Hall Effect keyboard with QMK and VIA support and a steel plate. The V6 Ultra adds Bluetooth 5.3 and 2.4 GHz wireless, a 4000 mAh battery, ZMK firmware, and a polycarbonate plate. The decision comes down to whether adjustable magnetic switches or wireless flexibility matters more to your daily use.

90
Keychron C4 HE 8K Magnetic Switch Keyboard
84
Keychron V6 Ultra 8K Wireless Custom Mechanical Keyboard ISO Layout Collection

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0.0 (0)
5.0 (6)
  • Has Linear, Tactile, Clicky switch options
  • Built with the ANSI layout standard
  • Utilizes Hall effect sensors
  • Supports QMK firmware
  • Supports VIA configuration
  • Supports Wired, Wired only connectivity
  • Weighs about 970 g
  • Sized at 30 x 446 x 138 mm
  • Made with a Plastic case
  • Offers Yes, Rgb, North-face, Rgb North-face RGB lighting
  • Has Tactile, Linear, Clicky switch options
  • Built with the ISO, JIS, ISO-DE, ISO-ES, ISO-FR, ISO-UK, ANSI layout standard
  • Comes with a knob
  • Features N-key rollover
  • Supports Wired, Wired only, Bluetooth, 2.4 GHz, Wireless connectivity
  • Equipped with a 4000 mAh battery
  • Weighs about 1130 g
  • Sized at 31 x 448 x 149 mm
  • Made with a Plastic, ABS, Aluminum, Metal case
  • Offers Yes, Rgb, White, South-face, Rgb South-face, White South-face RGB lighting
Scores
  • Performance: 89.2
  • Build Quality: 83.1
  • Productivity: 95.3
  • Customizability: 92.1
  • Portability: 45.3
Scores
  • Performance: 89
  • Build Quality: 77.4
  • Productivity: 90.7
  • Customizability: 78.4
  • Portability: 55.9
Name
Keychron C4 HE
Name
Keychron V6 Ultra
Release year
2026
Release year
2026
Switch Options
Linear, Tactile, Clicky
Switch Options
Tactile, Linear, Clicky
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
100%
Layout Size
100%
Layout Standard
ANSI
Layout Standard
ISO, JIS, ISO-DE, ISO-ES, ISO-FR, ISO-UK, 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
Wired, Wired only
Connection
Wired, Wired only, Bluetooth, 2.4 GHz, Wireless
Polling Rate
8000 Hz
Polling Rate
8000 Hz
Battery capacity
-
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, North-face
Backlight
 
Rgb, White, South-face, White South-face
Case Colors
Case Colors
Case Material
Plastic
Case Material
Plastic, ABS, Aluminum, Metal
Keycaps Material
PBT
Keycaps Material
PBT
Dimensions
30 x 446 x 138 mm
Dimensions
31 x 448 x 149 mm
Weight
970g
Weight
1130g
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Pros and Trade-offs

Choose the Keychron C4 HE if you want Hall Effect magnetic switches with adjustable actuation, QMK and VIA support, and a steel plate for a planted wired setup. Choose the Keychron V6 Ultra if wireless freedom matters more, since Bluetooth 5.3, 2.4 GHz at 8000 Hz, and a 4000 mAh battery cover multi-device work and travel. The primary differentiator is switch technology and connectivity, so decide whether magnetic switches or wireless flexibility drives your workflow.

Keychron C4 HE

  • +Keychron Ultra-fast Lime Magnetic Switches with adjustable actuation points.
  • +QMK and VIA support for deep key remapping and macros.
  • +8000 Hz polling rate in wired mode, switchable across 1000, 4000, and 8000 Hz in Launcher.
  • +Steel plate plus EVA acoustic foam for a stable, controlled typing feel.
  • +Hot-swappable Hall Effect switch support and screw-in stabilizers.
  • −Wired-only connectivity limits placement flexibility.
  • −Plastic case at 970 g is lighter than the V6 Ultra, which may feel less substantial to some.
  • −No knob, so dedicated media control relies on multi-media keys.
  • −No user reviews yet on the vendor page.

Keychron V6 Ultra

  • +Bluetooth 5.3, 2.4 GHz, and wired connectivity with 8000 Hz polling in wired and 2.4 GHz modes.
  • +4000 mAh battery rated up to 660 hours with backlight off.
  • +ZMK firmware and Keychron Launcher for remapping and macros.
  • +Knob support plus per-key RGB and Mix RGB lighting options.
  • +Multiple acoustic foam layers and a PC plate aimed at a softer, quieter sound.
  • −Heavier at 1130 g, which matters if you move it often.
  • −Bluetooth polling drops to 125 Hz, so wireless low-latency use needs the 2.4 GHz mode.
  • −Uses standard mechanical switches rather than Hall Effect magnetic switches, so no adjustable actuation.
  • −Reviewers note the opaque keycaps block backlight visibility in the dark.

Which Keyboard Is Better for Your Needs?

The C4 HE takes gaming, programming, and modding because of its Hall Effect switches, QMK and VIA support, and steel plate stability. The V6 Ultra wins office, travel, and content creation thanks to Bluetooth 5.3, 2.4 GHz wireless, a 4000 mAh battery, and a knob. Both are full-size boards with 8000 Hz polling, so the split is really about wired magnetic switches versus wireless flexibility. Neither board has a screen, and both share gasket mounting and PBT keycaps.

GamingKeychron C4 HE
  • •Keychron Ultra-fast Lime Magnetic Switches with adjustable actuation points suit fast competitive play.
  • •8000 Hz polling rate on the C4 HE is wired-only, which keeps latency predictable.
  • •Steel plate and 970 g body give a stable, planted feel during intense sessions.
OfficeKeychron V6 Ultra
  • •Bluetooth 5.3 connects to three devices, useful for switching between work machines.
  • •2.4 GHz and wired modes also run at 8000 Hz when lower latency is needed.
  • •Full-size layout with a number pad supports data entry and spreadsheet work.
ProgrammingKeychron C4 HE
  • •QMK and VIA support allow deep key remapping and layered layouts.
  • •Hot-swappable Hall Effect switches let you tune feel without soldering.
  • •Full-size ANSI layout keeps a number pad and function row for shortcuts.
TravelKeychron V6 Ultra
  • •Bluetooth and 2.4 GHz wireless remove the need for a cable on the go.
  • •4000 mAh battery rated up to 660 hours with backlight off.
  • •Lighter than many desktop boards at 1130 g, though still a full-size keyboard.
ModdingKeychron C4 HE
  • •QMK and VIA support open broad firmware customization options.
  • •Hot-swappable Hall Effect switch support allows swapping magnetic switches.
  • •EVA acoustic foam and screw-in stabilizers are mod-friendly starting points.
Content CreationKeychron V6 Ultra
  • •Knob support offers a tactile control for volume or editing shortcuts.
  • •ZMK firmware and Keychron Launcher allow macro and key remapping.
  • •Multiple acoustic foam layers and a PC plate target a softer, quieter sound.

Frequently Asked Questions (FAQ)

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