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Compare Keychron K4 V3 vs K5 Pro Differences Side by Side

This comparison is for buyers deciding between a compact 96% keyboard that packs a 4000mAh battery and acoustic foam, and a low-profile full-size board that prioritizes a thin aluminum body. The K4 V3 offers more layout efficiency, richer modding potential, and a larger battery for long wireless sessions. The K5 Pro delivers a 100% layout with a slimmer 3 degree typing angle and lower shipping weight at 720g. Both support QMK and VIA but differ sharply in form factor and acoustic treatment.

91
Keychron K4 QMK Wireless Mechanical Keyboard (ISO Layout) - Version 3
88
Keychron K5 Pro QMK/VIA Wireless Custom Mechanical Keyboard ISO Layout Collection

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5.0 (4)
4.8 (8)
  • Released in 2025
  • Available in a 96% layout
  • Built with the ISO, ISO-UK, ISO-DE, ISO-CH, ISO-Nordic, ANSI layout standard
  • Includes screw-in stabilizers
  • Has built-in sound dampening
  • Equipped with a 4000 mAh battery
  • Made with a Plastic case
  • Features PC, PBT keycaps
  • Offers Yes, Rgb, White, South-face, Rgb South-face, White South-face, North-face, Rgb North-face, White North-face RGB lighting
  • Released in 2023
  • Features a low-profile design
  • Available in a 100% layout
  • Built with the ISO, ISO-DE, ISO-Nordic, ISO-UK, JIS, ISO-SW, ISO-FR, ISO-ES, ANSI layout standard
  • Equipped with a 2000 mAh battery
  • Weighs about 720 g
  • Sized at 18 x 120 x 435 mm
  • Made with a Aluminum, Plastic, ABS case
  • Features ABS, PBT keycaps
  • Offers Yes, Rgb, North-face, Rgb North-face, White, White North-face RGB lighting
Scores
  • Performance: 82
  • Build Quality: 84
  • Productivity: 95.2
  • Customizability: 97.6
  • Portability: 54.2
Scores
  • Performance: 80.9
  • Build Quality: 79.7
  • Productivity: 79.7
  • Customizability: 88.9
  • Portability: 53.2
Name
Keychron K4 V3
Name
Keychron K5 Pro
Release year
2025
Release year
2023
Switch Options
Linear, Tactile, Clicky
Switch Options
Linear, Tactile, Clicky
Profile
Normal Profile
Profile
Low Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
96%
Layout Size
100%
Layout Standard
ISO, ISO-UK, ISO-DE, ISO-CH, ISO-Nordic, ANSI
Layout Standard
ISO, ISO-DE, ISO-Nordic, ISO-UK, JIS, ISO-SW, ISO-FR, ISO-ES, 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
4000 mAh
Battery capacity
2000 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, White, South-face, White South-face, North-face
Backlight
 
Rgb, North-face, White
Case Colors
Case Colors
Case Material
Plastic
Case Material
Aluminum, Plastic, ABS
Keycaps Material
PC, PBT
Keycaps Material
ABS, PBT
Dimensions
-
Dimensions
18 x 120 x 435 mm
Weight
-
Weight
720g
*Something incorrect or missing? Please
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Pros and Trade-offs

If you want a compact powerhouse with a huge battery, extensive foam for a quiet and thocky sound, and the ability to swap any MX switch, the K4 V3 is the stronger choice. If a full-size numpad and an ultra-slim aluminum body that slips into a backpack are your priorities, the K5 Pro delivers a polished, professional experience. Your decision hinges on whether you value deep modding and battery life or a slimmer, lighter full-size layout.

Keychron K4 V3

  • +4000mAh battery offers among the largest capacities for wireless use
  • +Four-layer acoustic foam (sound-absorbing, IXPE, EPDM, PET) for refined typing sound
  • +Screw-in steel stabilizers reduce wobble on space bar, shift, enter, and backspace
  • +Hot-swap PCB supports both 3-pin and 5-pin MX mechanical switches
  • +Three-level adjustable typing angle (5, 8, and 11 degrees) for ergonomic flexibility
  • −Plastic case may feel less premium than an aluminum build
  • −96% layout may still feel too large for users wanting a true compact board

Keychron K5 Pro

  • +Ultra-slim low-profile design with aluminum frame for a sleek desk look
  • +Full-size 100% layout includes a complete numpad for heavy data work
  • +Lightweight at 720g makes it easier to transport than many full-size boards
  • +Comes in both black and white color options for varied aesthetics
  • −2000mAh battery is half the capacity of the K4 V3, shorter wireless runtime
  • −Low-profile Gateron switches are only compatible with Gateron low-profile switches, limiting modding options
  • −Acoustic foam and screw-in stabilizers are absent from the vendor description

Which Keyboard Is Better for Your Needs?

The K4 V3 takes gaming, programming, modding, and content creation due to its larger battery, extensive foam stack, and stabilizer design. The K5 Pro wins in office and travel categories because of its full-size layout with numpad, lighter weight, and low-profile aluminum construction. Neither keyboard is a clear winner for every task, as the K4 V3 prioritizes features and sound, while the K5 Pro focuses on a slim footprint and full-size functionality.

GamingKeychron K4 V3
  • •1000 Hz polling out of the box for low latency
  • •North-facing RGB for better shine-through keycap brightness
  • •Screw-in steel stabilizers reduce wobble on big keys during rapid presses
OfficeKeychron K5 Pro
  • •Full-size 100% layout with dedicated numpad for data entry
  • •Ultra-slim low-profile design takes up less desk height
  • •Aluminum frame adds a premium office aesthetic
ProgrammingKeychron K4 V3
  • •96% layout saves desk space while keeping function row and arrows
  • •QMK firmware enables deep key remapping and macros
  • •Enhanced acoustic foams (IXPE, EPDM, PET) for a quieter typing experience
TravelKeychron K5 Pro
  • •Lighter weight at 720g is easier to carry
  • •Ultra-slim low-profile body fits in tighter bags
  • •5.1 Bluetooth allows connection to up to 3 devices on the go
ModdingKeychron K4 V3
  • •Screw-in PCB-mounted stabilizers are easy to replace or lube
  • •Four layers of foam (sound-absorbing, IXPE, EPDM, PET) for custom acoustics
  • •Hot-swap supports almost all 3-pin and 5-pin MX switches
Content CreationKeychron K4 V3
  • •4000mAh battery provides long wireless runtime for editing sessions
  • •Three adjustable typing angles (5, 8, 11 degrees) for ergonomic comfort
  • •Cherry-profile PBT keycaps feel stable for typing-heavy work

Frequently Asked Questions (FAQ)

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