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Compare Keychron K3 V3 vs K9 Pro Differences Side by Side

This comparison is for buyers deciding between two of Keychron's popular low-profile, QMK-enabled wireless keyboards. The choice is difficult because both share core features like hot-swap sockets, multi-device Bluetooth, and programmability. The decision ultimately hinges on your need for a 75% layout with more dedicated keys versus an ultra-compact 60% form factor.

83
Keychron K3 QMK Wireless Mechanical Keyboard (ISO Layout) - Version 3
83
Keychron K9 Pro QMK/VIA Wireless Custom Mechanical Keyboard

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0.0 (0)
5.0 (2)
  • Released in 2024
  • Available in a 75% layout
  • Built with the ANSI, ISO, ISO-UK, ISO-DE, ISO-SW, ISO-Nordic layout standard
  • Uses a Top Mount mounting style
  • Weighs about 540 g
  • Sized at 19 x 306 x 116 mm
  • Made with a ABS, Aluminum case
  • Features PBT, ABS keycaps
  • Released in 2023
  • Available in a 60% layout
  • Built with the ANSI layout standard
  • Connects via USB-C
  • Uses a Tray Mount mounting style
  • Weighs about 410 g
  • Sized at 20 x 287 x 98 mm
  • Made with a Aluminum, Plastic, ABS case
  • Features PBT keycaps
Scores
  • Performance: 82
  • Build Quality: 81.7
  • Productivity: 70.3
  • Customizability: 89.9
  • Portability: 74.7
Scores
  • Performance: 74.3
  • Build Quality: 80
  • Productivity: 73.6
  • Customizability: 89.4
  • Portability: 85.5
Name
Keychron K3 V3
Name
Keychron K9 Pro
Release year
2024
Release year
2023
Switch Options
Linear, Tactile, Clicky
Switch Options
Linear, Tactile, Clicky
Profile
Low Profile
Profile
Low Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
75%
Layout Size
60%
Layout Standard
ANSI, ISO, ISO-UK, ISO-DE, ISO-SW, ISO-Nordic
Layout Standard
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, Wired, Wireless
Connection
Bluetooth, Wired, Wireless
Polling Rate
1000 Hz
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
Top Mount
Mount Style
Tray 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
ABS, Aluminum
Case Material
Aluminum, Plastic, ABS
Keycaps Material
PBT, ABS
Keycaps Material
PBT
Dimensions
19 x 306 x 116 mm
Dimensions
20 x 287 x 98 mm
Weight
540g
Weight
410g
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Pros and Trade-offs

Your primary layout need should guide this decision. Opt for the Keychron K3 V3 if you value dedicated arrow keys, a function row, or require a specific ISO layout for work. Choose the Keychron K9 Pro if maximizing desk space or portability is your top priority, and you are comfortable using layers to access arrows and function keys. Both are excellent, customizable low-profile boards.

Keychron K3 V3

  • +75% layout retains arrow keys, function row, and navigation cluster.
  • +Offers multiple ISO layout options (UK, German, Swiss, Nordic).
  • +Features enhanced acoustic foams (IXPE, EPDM, latex) for sound dampening.
  • +Includes adjustable feet for three typing angles (2.5°, 4.2°, 6.5°).
  • +Uses Keychron Milk POM switches, which are pre-lubed according to the vendor.
  • −Heavier at 540g and larger than the 60% K9 Pro.
  • −Uses ABS keycaps on some versions, which may develop shine over time.
  • −Compatible only with specific low-profile mechanical switches (Keychron Milk POM or Gateron).

Keychron K9 Pro

  • +More portable 60% layout with a smaller footprint and lower weight (410g).
  • +Comes with double-shot PBT keycaps for better durability.
  • +Features an aluminum frame construction for rigidity.
  • +A reviewer specifically praised its thin, light design for portability.
  • −60% layout lacks dedicated arrow keys and function row, requiring layer usage.
  • −Only available in ANSI layout, with no ISO options.
  • −Uses a tray mount style, which may offer a different typing feel than the K3's top mount.

Which Keyboard Is Better for Your Needs?

The Keychron K3 V3 is the more versatile choice for most stationary use cases, winning in gaming, office, programming, and content creation due to its more functional 75% layout and international ISO support. The Keychron K9 Pro takes the lead only for travel, where its lighter weight and smaller 60% footprint are decisive advantages. For modding, both are equally capable with their hot-swap sockets and QMK/VIA support.

GamingKeychron K3 V3
  • •The K3 V3's 1000 Hz wired polling rate is specified for competitive gaming.
  • •Its 75% layout retains dedicated arrow keys for in-game controls without layers.
  • •The vendor description highlights its low latency for gaming.
OfficeKeychron K3 V3
  • •The K3 V3 offers multiple ISO layouts (UK, German, Swiss, Nordic) for international users.
  • •Its 75% layout includes a column of function keys and dedicated arrow keys for spreadsheet navigation.
  • •It supports seamless switching between three Bluetooth devices for multitasking.
ProgrammingKeychron K3 V3
  • •The dedicated arrow keys and function row on the K3 V3 are useful for code navigation and IDE shortcuts.
  • •It offers extensive ISO layout support, which can be important for programmers using specific regional keymaps.
  • •Both support QMK/VIA for deep key remapping, but the K3 V3's layout requires fewer layer shifts for common actions.
TravelKeychron K9 Pro
  • •The K9 Pro is lighter at 410g compared to the K3 V3's 540g.
  • •Its 60% layout has a smaller footprint (287 x 98 mm vs 306 x 116 mm), saving space in a bag.
  • •A reviewer noted its suitability for carrying between a seat and a conference room.
ModdingTie
  • •Both keyboards are hot-swappable for easy switch changes.
  • •Both support QMK and VIA firmware for extensive software customization.
  • •Both use north-facing RGB and have redesigned stabilizers mentioned by the vendor.
Content CreationKeychron K3 V3
  • •The K3 V3's 12 multimedia keys, as listed in its specs, provide direct access to playback and volume controls.
  • •The 75% layout offers more immediate keys for shortcut-heavy applications like video or photo editors.
  • •Its adjustable typing angle (2.5°, 4.2°, 6.5°) can aid ergonomics during long editing sessions.

Frequently Asked Questions (FAQ)

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