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Compare Keychron C1 Pro vs K4 Pro Differences Side by Side

This comparison is for buyers choosing between a compact, wired TKL keyboard and a larger keyboard with wireless and wired connectivity. The C1 Pro lists 8000 Hz polling, while the K4 Pro pairs a 96% layout with a 4000 mAh battery and Bluetooth. Both support hot-swapping, QMK, VIA, RGB lighting, and multiple switch types. The choice depends mainly on whether wired responsiveness and a smaller footprint or wireless flexibility and a more expansive layout matter more.

92
Keychron C1 Pro 8K QMK Wired Custom Mechanical Keyboard ISO Layout Collection
92
Keychron K4 Pro QMK/VIA Wireless Mechanical Keyboard

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4.8 (10)
4.7 (7)
  • Released in 2023
  • Has Tactile, Linear, Clicky switch options
  • Available in a 80% layout
  • Built with the ISO, ISO-DE, ISO-ES, ISO-IT, ANSI layout standard
  • Comes with a knob
  • Supports Wired, Wired only connectivity
  • Runs at a 8000 Hz polling rate
  • Weighs about 830 g
  • Sized at 20 x 357 x 131 mm
  • Features PBT keycaps
  • Offers Yes, Rgb, South-face, Rgb South-face, White, White South-face RGB lighting
  • Released in 2022
  • Has Linear, Tactile, Clicky switch options
  • Available in a 96% layout
  • Built with the ANSI, ISO, ISO-DE, ISO-ES, ISO-FR, ISO-Nordic, ISO-SW, ISO-UK layout standard
  • Provides dedicated media keys
  • Supports Bluetooth, Wired, Wireless connectivity
  • Runs at a 1000 Hz polling rate
  • Equipped with a 4000 mAh battery
  • Weighs about 1280 g
  • Sized at 31 x 391 x 139 mm
  • Features PBT, ABS keycaps
  • Offers Yes, Rgb, White, South-face, Rgb South-face, White South-face RGB lighting
Scores
  • Performance: 90.9
  • Build Quality: 82.9
  • Productivity: 97.6
  • Customizability: 91.2
  • Portability: 57.3
Scores
  • Performance: 81.5
  • Build Quality: 83.9
  • Productivity: 94.7
  • Customizability: 95.8
  • Portability: 53.5
Name
Keychron C1 Pro
Name
Keychron K4 Pro
Release year
2023
Release year
2022
Switch Options
Tactile, Linear, Clicky
Switch Options
Linear, Tactile, Clicky
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
80%
Layout Size
96%
Layout Standard
ISO, ISO-DE, ISO-ES, ISO-IT, ANSI
Layout Standard
ANSI, ISO, ISO-DE, ISO-ES, ISO-FR, ISO-Nordic, ISO-SW, ISO-UK
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
Bluetooth, Wired, Wireless
Polling Rate
8000 Hz;1000 Hz
Polling Rate
1000 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
Tray Mount
Mount Style
Tray Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb, South-face, White, White South-face
Backlight
 
Rgb, White, South-face, White South-face
Case Colors
Case Colors
Case Material
Plastic, ABS
Case Material
Plastic, ABS
Keycaps Material
PBT
Keycaps Material
PBT, ABS
Dimensions
20 x 357 x 131 mm
Dimensions
31 x 391 x 139 mm
Weight
830g
Weight
1280g
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Pros and Trade-offs

Choose the C1 Pro if you want a wired TKL board and value its listed 8000 Hz polling option. Choose the K4 Pro if wireless connectivity, multi-device use, or a number pad matters more than minimizing weight and size. Both offer hot-swapping and QMK/VIA support, so layout and connection preference are the main deciding factors.

Keychron C1 Pro

  • +Lists wired polling options of 8000 Hz and 1000 Hz.
  • +The 80% TKL layout is smaller and lighter than the K4 Pro, at 830 g.
  • +Hot-swappable sockets support 3-pin and 5-pin switches, according to Keychron.
  • +QMK and VIA support, plus south-facing RGB lighting and PBT keycaps.
  • +Keychron describes sound-absorbing foam, EPDM foam, and a silicone bottom pad.

  • −Wired-only connectivity does not offer the K4 Pro's wireless option.
  • −The 80% layout does not offer the K4 Pro's 96% layout with a number pad.
  • −The listing identifies the plate material as plastic, rather than the K4 Pro's steel plate.

Keychron K4 Pro

  • +Bluetooth and wired connectivity, with a 4000 mAh battery listed.
  • +The 96% layout offers a number pad in a smaller format than a full-size keyboard.
  • +Hot-swappable switches, QMK, VIA, and a barebones version are available.
  • +The steel plate is paired with sound-absorbing foam and a thick silicone dampening bottom pad, according to Keychron.
  • +Keychron describes wireless connections to up to three devices.

  • −The listed polling rate is 1000 Hz, below the C1 Pro's 8000 Hz option.
  • −At 1280 g, it weighs more than the C1 Pro's 830 g.
  • −Its 96% layout and listed dimensions make it larger than the C1 Pro.

Which Keyboard Is Better for Your Needs?

The C1 Pro has the clearest gaming advantage on paper because it lists an 8000 Hz polling option and uses a wired connection. The K4 Pro suits office use where wireless connectivity and switching among devices are useful, and it also offers the larger layout for numeric work. Programming is a close call because both support QMK, VIA, and hot-swappable switches, with layout preference deciding the fit. For travel, the C1 Pro is lighter and smaller, while the K4 Pro avoids a required cable but weighs more.

GamingKeychron C1 Pro
  • •The C1 Pro lists 8000 Hz and 1000 Hz polling options, compared with 1000 Hz for the K4 Pro.
  • •The C1 Pro uses a wired-only connection, while the K4 Pro also offers wireless connectivity.
OfficeKeychron K4 Pro
  • •The K4 Pro supports Bluetooth and wired connections, while the C1 Pro is wired only.
  • •The K4 Pro vendor description says it can connect wirelessly to up to three devices.
  • •The K4 Pro has a 96% layout, while the C1 Pro uses an 80% TKL layout.
ProgrammingTie
  • •Both keyboards support QMK and VIA, and both vendor descriptions mention remapping keys and macros through Keychron Launcher.
  • •The C1 Pro has an 80% TKL layout, while the K4 Pro's 96% layout includes a number pad.
  • •Both support hot-swappable switches and include Windows and macOS support.
TravelTie
  • •The C1 Pro is lighter at 830 g, compared with 1280 g for the K4 Pro.
  • •The C1 Pro is smaller in the listed dimensions, but it requires a wired connection.
  • •The K4 Pro supports wireless use and has a 4000 mAh battery, but it is heavier and larger.
ModdingKeychron K4 Pro
  • •Both keyboards are hot-swappable and support QMK and VIA.
  • •The K4 Pro has a barebones version available, giving buyers an option without switches and keycaps.
  • •The K4 Pro vendor description specifies PCB-mounted hot-swap sockets and support for many 3-pin and 5-pin MX-style switches.
Content CreationKeychron K4 Pro
  • •The K4 Pro's 96% layout includes a number pad, which may suit workflows involving frequent numeric entry.
  • •The K4 Pro supports wireless and wired connections, while the C1 Pro is wired only.
  • •The C1 Pro is the smaller 80% TKL option for buyers who prefer to reserve more desk space.

Frequently Asked Questions (FAQ)


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