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Compare Keychron K3 vs K3 V3 Differences Side by Side

This comparison is for buyers looking at a low-profile wireless 75% keyboard and deciding between the more affordable original Keychron K3 and the heavily upgraded K3 V3. Both share a similar ultra-slim design and 1550mAh battery, but the decision is hard because the K3 V3 introduces QMK/VIA support, enhanced acoustic foams, and a 1000 Hz polling rate that the original K3 lacks. The original K3 offers a lower price and a unique hot-swappable low-profile optical switch option that is not compatible with the K3 V3. Your final choice depends on whether you prioritize extensive programming and customization features, or a budget-friendly entry into the low-profile form factor.

65
Keychron K3 Ultra-slim Wireless Mechanical Keyboard FR-ISO Layout
83
Keychron K3 QMK Wireless Mechanical Keyboard (ISO Layout) - Version 3

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  • Released in 2023
  • Has Tactile, Linear, Clicky switch options
  • Built with the ISO-FR, ISO, ANSI layout standard
  • Connects via USB-C
  • Uses a Plate Mount mounting style
  • Made with a Aluminum, ABS case
  • Offers Yes, Rgb, White, North-face, Rgb North-face RGB lighting
  • Released in 2024
  • Has Linear, Tactile, Clicky switch options
  • Built with the ANSI, ISO, ISO-UK, ISO-DE, ISO-SW, ISO-Nordic layout standard
  • Supports QMK firmware
  • Supports VIA configuration
  • Features N-key rollover
  • Uses a Top Mount mounting style
  • Runs at a 1000 Hz polling rate
  • Weighs about 540 g
  • Sized at 19 x 306 x 116 mm
  • Made with a ABS, Aluminum case
  • Offers Yes, Rgb, White, North-face, Rgb North-face, White North-face RGB lighting
Scores
  • Performance: 62.8
  • Build Quality: 61.7
  • Productivity: 66.7
  • Customizability: 69.5
  • Portability: 78.2
Scores
  • Performance: 82
  • Build Quality: 81.7
  • Productivity: 70.3
  • Customizability: 89.9
  • Portability: 74.7
Name
Keychron K3
Name
Keychron K3 V3
Release year
2023
Release year
2024
Switch Options
Tactile, Linear, Clicky
Switch Options
Linear, Tactile, Clicky
Profile
Low Profile
Profile
Low Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
75%
Layout Size
75%
Layout Standard
ISO-FR, ISO, ANSI
Layout Standard
ANSI, ISO, ISO-UK, ISO-DE, ISO-SW, ISO-Nordic
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
Bluetooth, Wired, Wireless
Polling Rate
-
Polling Rate
1000 Hz
Battery capacity
1550 mAh
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
Plate Mount
Mount Style
Top Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb, White, North-face
Backlight
 
Rgb, White, North-face
Case Colors
Case Colors
Case Material
Aluminum, ABS
Case Material
ABS, Aluminum
Keycaps Material
PBT, ABS
Keycaps Material
PBT, ABS
Dimensions
-
Dimensions
19 x 306 x 116 mm
Weight
-
Weight
540g
*Something incorrect or missing? Please
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Pros and Trade-offs

The Keychron K3 V3 is the overwhelmingly better choice for those who want a customizable, feature-rich low-profile keyboard with modern firmware support and a superior typing experience. The original Keychron K3 is only recommended if your budget is extremely tight or if you specifically need the hot-swappable low-profile optical switches, which are absent from the V3. For virtually every other scenario, from programming to gaming, the K3 V3's QMK support, 1000 Hz polling, and acoustic foam make it the obvious upgrade.

Keychron K3

  • +Lower price point than the K3 V3.
  • +Offers a version with hot-swappable low profile Keychron Optical switches, which are not compatible with the K3 V3.
  • +Available in both white backlight and RGB backlight versions.
  • +Lightweight and slim design for high portability.
  • −Lacks QMK/VIA support for custom firmware and key remapping.
  • −Does not have the enhanced acoustic foams (IXPE, EPDM, latex) found in the K3 V3.
  • −Uses a plate mount design and plastic plate, which may not feel as solid as the K3 V3's construction.
  • −Polling rate and N-Key Rollover specifications are not mentioned, suggesting lower gaming performance.

Keychron K3 V3

  • +Supports open-source QMK firmware and the Keychron Launcher web app for full keymap and macro customization.
  • +Features enhanced acoustic foams (IXPE, EPDM, latex) for a quieter, more responsive typing feel.
  • +Operates at a 1000 Hz polling rate in wired mode and includes N-Key Rollover for both wireless and wired modes.
  • +Comes with redesigned stabilizers for less wobble and three levels of adjustable typing angle (2.5, 4.2, and 6.5 degrees).
  • −Generally priced higher than the original K3.
  • −Not compatible with low-profile optical switches; only compatible with Gateron/Keychron low-profile mechanical switches.
  • −Somewhat heavier and larger (540g, 19 x 306 x 116 mm) than the original K3 (weight and dimensions not specified).

Which Keyboard Is Better for Your Needs?

The Keychron K3 V3 is the clear winner for most use cases, including gaming, office work, programming, modding, and content creation, thanks to its QMK firmware, 1000 Hz polling rate, enhanced acoustic foam, and adjustable typing angles. In the travel category, the decision is a tie, as both keyboards share a similar compact low-profile design and battery, with the original K3 potentially being lighter. The original K3 remains a viable option primarily for its lower price point and its offering of hot-swappable low profile optical switches, which the K3 V3 does not support.

GamingKeychron K3 V3
  • •The K3 V3 supports a 1000 Hz polling rate in wired mode (90 Hz in wireless), which is better for responsive gameplay than the original K3.
  • •The K3 V3 includes N-Key Rollover for both wired and wireless modes.
  • •The K3 V3 features an ARM architecture MCU with 256KB Flash for more flexibility.
OfficeKeychron K3 V3
  • •The K3 V3 has enhanced IXPE, EPDM, and latex acoustic foams for a quieter, more comfortable typing experience.
  • •The K3 V3 uses redesigned stabilizers for less wobble on big keys like the space bar and Enter.
  • •Its powerful QMK firmware allows for custom keymaps and macros to streamline workflow.
ProgrammingKeychron K3 V3
  • •The K3 V3 fully supports QMK firmware and the Keychron Launcher web app, enabling limitless key remapping and macro creation.
  • •The K3 V3 offers three levels of adjustable typing angle (2.5 degrees, 4.2 degrees, and 6.5 degrees) for ergonomic comfort.
  • •The K3 V3 is compatible with macOS, Windows, and Linux for cross-platform development.
TravelTie
  • •Both keyboards share the same compact 75 percent low-profile form factor, making them portable.
  • •Both feature a 1550mAh rechargeable battery and use Bluetooth and USB-C wired connectivity.
  • •The original K3 is lighter and smaller (specs not provided for K3), while the K3 V3 is specifically measured at 540g and 19 x 306 x 116 mm.
  • •The K3 V3's superior build quality and foam may offer better durability for travel, but the K3 potentially is lighter.
ModdingKeychron K3 V3
  • •The K3 V3 has a superior customizability score and includes QMK and VIA support for deep firmware modding.
  • •The K3 V3 features an open-source firmware (QMK) enabling full keymap and macro control.
  • •The K3 V3 uses a top mount and PCB mount style which may be more modder-friendly than the K3's plate mount.
Content CreationKeychron K3 V3
  • •The K3 V3 supports QMK and the Keychron Launcher, allowing creators to set up custom shortcuts for video editing or audio production.
  • •The K3 V3's enhanced acoustic foam and redesigned stabilizers contribute to a better typing experience for long editing sessions.
  • •The K3 V3 offers three adjustable typing angles for ergonomic comfort during long projects.

Frequently Asked Questions (FAQ)

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