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Compare Keychron C3 Pro vs K3 Pro Differences Side by Side

This comparison is for buyers deciding between Keychron's performance-focused wired TKL and its versatile wireless low-profile compact. The decision hinges on whether you prioritize ultra-low latency and a premium acoustic setup for a fixed desk, or need multi-device connectivity and a slimmer keyboard for portability and a cleaner look. Both offer extensive customization via QMK/VIA and hot-swap, making the core trade-off one of connectivity versus profile and sound engineering.

89
Keychron C3 Pro 8K QMK Wired Custom Mechanical Keyboard
87
Keychron K3 Pro QMK/VIA Wireless Mechanical Keyboard ISO Layout Collection

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4.5 (2)
4.7 (52)
  • Released in 2023
  • Available in a 80% layout
  • Built with the ANSI layout standard
  • Has built-in sound dampening
  • Uses a Gasket Mount mounting style
  • Supports Wired, Wired only connectivity
  • Runs at a 8000 Hz polling rate
  • Weighs about 912 g
  • Sized at 21 x 365 x 138 mm
  • Made with a ABS, Plastic case
  • Features PBT, ABS keycaps
  • Offers Yes, Rgb, North-face, Rgb North-face RGB lighting
  • Released in 2022
  • Features a low-profile design
  • 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
  • Provides dedicated media keys
  • 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
Scores
  • Performance: 89.8
  • Build Quality: 80.5
  • Productivity: 90.7
  • Customizability: 88.8
  • Portability: 57.8
Scores
  • Performance: 81
  • Build Quality: 81.3
  • Productivity: 79.8
  • Customizability: 89
  • Portability: 77.2
Name
Keychron C3 Pro
Name
Keychron K3 Pro
Release year
2023
Release year
2022
Switch Options
Linear, Tactile, Clicky
Switch Options
Linear, Tactile, Clicky
Profile
Normal Profile
Profile
Low Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
80%
Layout Size
75%
Layout Standard
ANSI
Layout Standard
ISO, JIS, ISO-DE, ISO-ES, ISO-FR, ISO-Nordic, ISO-SW, 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
Bluetooth, Wired, Wireless, 2.4 GHz
Polling Rate
8000 Hz;1000 Hz
Polling Rate
1000 Hz
Battery capacity
-
Battery capacity
1550 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
Tray Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb, North-face
Backlight
 
Rgb, South-face, White, North-face
Case Colors
Case Colors
Case Material
ABS, Plastic
Case Material
Aluminum, Plastic, ABS
Keycaps Material
PBT, ABS
Keycaps Material
ABS, PBT
Dimensions
21 x 365 x 138 mm
Dimensions
15 x 306 x 116 mm
Weight
912g
Weight
930g
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Pros and Trade-offs

Your primary need dictates the choice. For a stationary, performance-driven setup where latency and acoustic quality are paramount, the wired Keychron C3 Pro is the superior tool. If your workflow involves multiple devices, you value a sleek, low-profile keyboard, or you need to move the keyboard frequently, the wireless Keychron K3 Pro's flexibility is the deciding factor. Both deliver excellent customization through QMK and hot-swap.

Keychron C3 Pro

  • +Configurable 8000 Hz polling rate for high-performance wired use.
  • +Gasket mount design with multiple internal foam layers for sound dampening.
  • +Uses standard Cherry profile double-shot PBT keycaps.
  • +Wide compatibility with 3-pin and 5-pin MX-style switches for hot-swapping.
  • +Three adjustable typing angles (4°, 6°, 8.7°) for ergonomics.
  • −Wired-only connectivity limits placement and device switching.
  • −Larger and taller footprint compared to the low-profile K3 Pro.
  • −ABS plastic case construction, lacking the aluminum frame of the K3 Pro.

Keychron K3 Pro

  • +Tri-mode connectivity with Bluetooth 5.1 for up to three devices and wired USB-C.
  • +Ultra-slim low-profile design with an aluminum frame for a premium look.
  • +Includes dedicated multimedia keys for quick media control.
  • +Hot-swappable with low-profile Gateron mechanical switches.
  • +Officially supports a wide array of international ISO and JIS layouts.
  • −Lower 1000 Hz polling rate in wired mode compared to the C3 Pro.
  • −Hot-swap is limited to low-profile Gateron mechanical switches only.
  • −Smaller 1550mAh battery capacity may require more frequent charging than some wireless keyboards.

Which Keyboard Is Better for Your Needs?

The C3 Pro is the clear choice for dedicated gaming setups and modding enthusiasts due to its high polling rate and gasket-mounted acoustics. The K3 Pro wins for office, travel, and content creation, where its wireless multi-connectivity and low-profile form are major advantages. For programming, both are equally capable due to shared QMK and hot-swap support, leaving the decision to layout preference.

GamingKeychron C3 Pro
  • •The C3 Pro offers a configurable 8000 Hz polling rate for minimal input lag, which Keychron markets for competitive gaming.
  • •Its gasket mount design and internal foam layers (EVA acoustic foam, IXPE film, silicone pad) are tuned for a consistent typing feel.
  • •The 80% TKL layout retains dedicated arrow and navigation keys without taking up excessive desk space.
OfficeKeychron K3 Pro
  • •The K3 Pro connects to up to three devices via Bluetooth 5.1 for easy switching between a laptop, phone, and tablet.
  • •Its low-profile design and aluminum frame contribute to an ultra-slim, professional aesthetic.
  • •It includes multimedia keys and is listed as compatible with both Windows and macOS layouts out of the box.
ProgrammingTie
  • •Both keyboards support full key remapping and macros through open-source QMK firmware and the VIA/Keychron Launcher web app.
  • •Both are hot-swappable, allowing switch changes to suit typing preference.
  • •The C3 Pro's TKL layout offers slightly more dedicated keys, while the K3 Pro's 75% layout is more compact.
TravelKeychron K3 Pro
  • •The K3 Pro is significantly thinner (15mm height) and more compact (306 x 116mm) than the C3 Pro.
  • •Wireless Bluetooth operation removes the need to carry or manage a cable during use.
  • •It has a built-in 1550mAh rechargeable battery for cord-free operation.
ModdingKeychron C3 Pro
  • •The C3 Pro's gasket mount design is often preferred for its impact on typing feel and sound.
  • •Its internal sound-dampening setup includes multiple named foam layers (3.5mm EVA foam, IXPE film, silicone pad).
  • •It uses standard Cherry profile keycaps and supports a wide range of 3-pin and 5-pin MX-style switches.
Content CreationKeychron K3 Pro
  • •Wireless connectivity and multi-device support streamline workflows across a computer and tablet.
  • •The low-profile switches and keycaps may reduce finger fatigue during long editing sessions.
  • •The compact 75% footprint frees up desk space for graphics tablets or other peripherals.

Frequently Asked Questions (FAQ)

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