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Compare Keychron K3 V3 vs K4 Pro Differences Side by Side

This comparison is for buyers deciding between Keychron's compact low-profile offering and their space-efficient full-size model. The decision hinges on whether you prioritize an ultra-slim form factor for travel and a modern feel, or a complete number pad and function row in a condensed layout for stationary productivity. Both share high-end features like QMK/VIA programmability and hot-swap sockets, making the core trade-off one of layout and physical profile.

83
Keychron K3 QMK Wireless Mechanical Keyboard (ISO Layout) - Version 3
92
Keychron K4 Pro QMK/VIA Wireless Mechanical Keyboard

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0.0 (0)
4.7 (7)
  • Released in 2024
  • Features a low-profile design
  • 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
  • Equipped with a 1550 mAh battery
  • 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
  • Released in 2022
  • Available in a 96% layout
  • Built with the ANSI, ISO, ISO-DE, ISO-ES, ISO-FR, ISO-Nordic, ISO-SW, ISO-UK layout standard
  • Connects via USB-C
  • Includes screw-in stabilizers
  • Has built-in sound dampening
  • Uses a Tray Mount mounting style
  • Equipped with a 4000 mAh battery
  • Weighs about 1280 g
  • Sized at 31 x 391 x 139 mm
  • Made with a Plastic, ABS case
  • Offers Yes, Rgb, White, South-face, Rgb South-face, White South-face RGB lighting
Scores
  • Performance: 82
  • Build Quality: 81.7
  • Productivity: 70.3
  • Customizability: 89.9
  • Portability: 74.7
Scores
  • Performance: 81.3
  • Build Quality: 83.8
  • Productivity: 94.6
  • Customizability: 97.2
  • Portability: 53.6
Name
Keychron K3 V3
Name
Keychron K4 Pro
Release year
2024
Release year
2022
Switch Options
Linear, Tactile, Clicky
Switch Options
Linear, Tactile, Clicky
Profile
Low Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
75%
Layout Size
96%
Layout Standard
ANSI, ISO, ISO-UK, ISO-DE, ISO-SW, ISO-Nordic
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
Bluetooth, Wired, Wireless
Connection
Bluetooth, Wired, Wireless
Polling Rate
1000 Hz
Polling Rate
1000 Hz
Battery capacity
1550 mAh
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
Top Mount
Mount Style
Tray Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb, White, North-face
Backlight
 
Rgb, White, South-face, White South-face
Case Colors
Case Colors
Case Material
ABS, Aluminum
Case Material
Plastic, ABS
Keycaps Material
PBT, ABS
Keycaps Material
PBT, ABS
Dimensions
19 x 306 x 116 mm
Dimensions
31 x 391 x 139 mm
Weight
540g
Weight
1280g
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Pros and Trade-offs

Your primary need dictates the choice. If you work primarily at a desk and value a number pad, extensive battery life, and deep modding potential, the Keychron K4 Pro is the superior tool. If you frequently move your keyboard, prefer a sleek, low-profile typing experience, and can sacrifice the number pad, the Keychron K3 V3 is the better portable companion. Both are excellently equipped with programmability and hot-swap features.

Keychron K3 V3

  • +Ultra-slim low-profile design with a 75% layout for maximum portability.
  • +Lightweight at 540 grams, easy to carry.
  • +Features multiple foam layers (IXPE, EPDM, latex) for enhanced acoustics.
  • +Offers adjustable typing angles (2.5°, 4.2°, 6.5°) for ergonomics.
  • +Compatible with Bluetooth 5.2 for wireless connectivity.
  • −Limited to specific low-profile mechanical switches (Keychron Milk POM or Gateron/Keychron low-profile) for hot-swapping.
  • −Smaller 1550mAh battery capacity.
  • −Lacks a dedicated number pad and some navigation keys.

Keychron K4 Pro

  • +96% layout includes a full number pad and function row in a compact form.
  • +Massive 4000mAh battery for extended wireless use.
  • +Fully hot-swappable with almost all 3-pin and 5-pin MX-style switches.
  • +Includes sound-absorbing foam, a silicone dampening pad, and a steel plate for a solid typing feel.
  • +Uses screw-in PCB stabilizers, preferred for customization.
  • −Heavy and large at 1280 grams and 391mm wide, less portable.
  • −Uses a tray mount style, which can lead to less consistent typing feel compared to other mounts.
  • −South-facing RGB LEDs may not provide as much shine-through with certain keycap legends.

Which Keyboard Is Better for Your Needs?

The K4 Pro is the clear choice for stationary work requiring high productivity, winning in Office, Programming, and Content Creation due to its number pad, larger battery, and mod-friendly design. The K3 V3 dominates for Travel thanks to its light weight and slim dimensions. For Gaming, the core performance specs are matched, making it a tie based on personal preference for key profile.

GamingTie
  • •Both have a 1000 Hz polling rate in wired mode for low latency.
  • •Both support N-key rollover for simultaneous key presses.
  • •The K3 V3's lower profile may suit some gaming postures, while the K4 Pro's standard profile is more common.
OfficeKeychron K4 Pro
  • •The K4 Pro's 96% layout includes a full number pad, crucial for data entry.
  • •It has a significantly larger 4000mAh battery for longer wireless use.
  • •Its listing mentions included sound-absorbing foam and a silicone dampening pad for a quieter typing sound.
ProgrammingKeychron K4 Pro
  • •The K4 Pro's 96% layout retains dedicated arrow keys and a number pad without taking up a full-size footprint.
  • •It uses south-facing RGB LEDs, which the manufacturer states avoids interference with Cherry-profile keycaps, a popular choice among enthusiasts.
  • •It offers a barebone kit option for building with preferred switches and keycaps from the start.
TravelKeychron K3 V3
  • •The K3 V3 is significantly lighter at 540g versus the K4 Pro's 1280g.
  • •It has a much smaller footprint (306mm wide) compared to the K4 Pro (391mm wide).
  • •Its low-profile design is described as "ultra-slim" by Keychron, making it easier to pack.
ModdingKeychron K4 Pro
  • •The K4 Pro uses screw-in PCB stabilizers, which are generally preferred for modding over the K3 V3's redesigned stabilizers.
  • •It has a steel plate and tray mount, a common modding platform.
  • •Its hot-swap sockets accept almost all 3-pin and 5-pin MX-style switches, while the K3 V3 is limited to specific low-profile switches.
Content CreationKeychron K4 Pro
  • •The integrated number pad on the K4 Pro is useful for timeline scrubbing and numerical input in creative software.
  • •The larger battery supports long, uninterrupted wireless editing sessions.
  • •The standard keycap profile offers wider compatibility with aftermarket sets for customization.

Frequently Asked Questions (FAQ)

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