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Compare Keychron K4 Max vs K4 V3 Differences Side by Side

This comparison is for buyers deciding between Keychron's two latest 96% layout keyboards. The choice is difficult because both share core features like QMK/VIA support, hot-swap sockets, and a 4000mAh battery. The decision hinges on whether you prioritize a low-latency 2.4GHz wireless connection or need specific international ISO layouts. Both are highly customizable, making the final call dependent on your specific connectivity and regional keycap needs.

87
Keychron K4 Max QMK Wireless Mechanical Keyboard ISO Layout Collection
91
Keychron K4 QMK Wireless Mechanical Keyboard (ISO Layout) - Version 3

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5.0 (1)
5.0 (4)
  • Built with the ISO, ANSI layout standard
  • Uses a PCB Mount mounting style
  • Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity
  • Weighs about 1290 g
  • Sized at 31 x 391 x 140 mm
  • Made with a ABS case
  • Features PBT keycaps
  • Offers Yes, Rgb, South-face, Rgb South-face, White, White South-face RGB lighting
  • Built with the ISO, ISO-UK, ISO-DE, ISO-CH, ISO-Nordic, ANSI layout standard
  • Connects via USB-C
  • Uses a Tray Mount mounting style
  • Supports Bluetooth, Wired, Wireless connectivity
  • 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
Scores
  • Performance: 82.1
  • Build Quality: 80.3
  • Productivity: 89.2
  • Customizability: 92.9
  • Portability: 50.9
Scores
  • Performance: 82
  • Build Quality: 84
  • Productivity: 95.2
  • Customizability: 97.6
  • Portability: 54.2
Name
Keychron K4 Max
Name
Keychron K4 V3
Release year
2025
Release year
2025
Switch Options
Linear, Tactile, Clicky
Switch Options
Linear, Tactile, Clicky
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
96%
Layout Size
96%
Layout Standard
ISO, ANSI
Layout Standard
ISO, ISO-UK, ISO-DE, ISO-CH, ISO-Nordic, 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, 2.4 GHz, Wired, Wireless
Connection
Bluetooth, Wired, Wireless
Polling Rate
1000 Hz
Polling Rate
1000 Hz
Battery capacity
4000 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
PCB Mount
Mount Style
Tray Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb, South-face, White, White South-face
Backlight
 
Rgb, White, South-face, White South-face, North-face
Case Colors
Case Colors
Case Material
ABS
Case Material
Plastic
Keycaps Material
PBT
Keycaps Material
PC, PBT
Dimensions
31 x 391 x 140 mm
Dimensions
-
Weight
1290g
Weight
-
*Something incorrect or missing? Please
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Pros and Trade-offs

Your primary need dictates the choice. If low-latency wireless gaming or a rigid PCB mount is critical, the Keychron K4 Max is the clear pick. If you require a specific ISO layout like UK or German, or prefer the option of a barebones kit, the Keychron K4 V3 is the better route. For all other use cases, including general typing, programming, and modding, both keyboards are exceptionally well-matched.

Keychron K4 Max

  • +Includes a 2.4 GHz wireless connection alongside Bluetooth and wired modes.
  • +Features a PCB mount style with a steel plate for a potentially more solid feel.
  • +Uses south-facing RGB LEDs to avoid interference with Cherry-profile keycaps.
  • +Comes with OSA profile double-shot PBT keycaps according to its listing.
  • +Vendor description highlights multiple layers of acoustic foam (IXPE, PET, EPDM).
  • −Has a more limited selection of ISO layout options compared to the K4 V3.
  • −Case material is listed as ABS, which may feel less premium than metal alternatives.
  • −Its default typing angle is a lower 3 degrees.

Keychron K4 V3

  • +Offers a wider array of ISO layouts, including UK, German, Nordic, and Swiss.
  • +Available in a DIY kit/barebones configuration for those who want to supply their own switches/keycaps.
  • +Uses north-facing RGB LEDs with shine-through keycaps, as stated by the manufacturer.
  • +Comes with Cherry profile double-shot PBT keycaps according to its listing.
  • +Vendor page shows user reviews praising its sound and build quality.
  • −Lacks a 2.4 GHz wireless connection, offering only Bluetooth and wired.
  • −Uses a tray mount style, which can result in a less consistent typing feel than PCB mount.
  • −The vendor notes that a specific non-hot-swappable version lacks some sound-absorbing foam.

Which Keyboard Is Better for Your Needs?

The K4 Max takes a slight lead for gaming due to its 2.4GHz wireless mode. For office and programming, the keyboards are evenly matched with their shared 96% layout and robust customization software. The K4 V3 shows an edge for travel, hinted at by its available barebones kit and promoted travel accessories. For modding and content creation, both offer an identical, high-caliber foundation of hot-swap sockets and QMK support, making them equally capable.

GamingKeychron K4 Max
  • •The K4 Max includes a 2.4 GHz wireless connection with a 1000 Hz polling rate for lower latency gaming.
  • •Its PCB mount style and steel plate may offer a more rigid typing feel preferred by some gamers.
  • •South-facing RGB LEDs prevent interference with Cherry-profile keycaps, a common choice for aftermarket sets.
OfficeTie
  • •Both support Bluetooth for connecting to multiple devices and include Mac/Windows keycaps.
  • •Both feature sound-dampening foams (IXPE, EPDM) for quieter typing.
  • •Each has adjustable typing angles and dedicated media keys for productivity.
ProgrammingTie
  • •Both keyboards fully support QMK and VIA for deep key remapping and macro programming.
  • •The 96% layout on both models provides a numpad while saving desk space.
  • •Hot-swappable sockets allow for switch customization to suit typing preferences.
TravelKeychron K4 V3
  • •The K4 V3 is listed as available in a DIY kit/barebones option, which can be lighter to transport.
  • •Its vendor page prominently features accessory palm rests and carrying cases as frequently bought together items, suggesting a travel-focused ecosystem.
  • •Both share the same 96% footprint and wireless capabilities, making portability similar.
ModdingTie
  • •Both are hot-swappable for easy switch changes and support screw-in stabilizers.
  • •Both use QMK/VIA open-source firmware for extensive software customization.
  • •Each has pre-installed acoustic foams (IXPE, PET, EPDM), providing a solid base for sound mods.
Content CreationTie
  • •The full programmability via QMK/VIA on both is ideal for assigning complex shortcuts.
  • •Both layouts include a numpad for numerical data entry.
  • •Multiple connectivity options allow easy switching between a desktop and secondary device for editing.

Frequently Asked Questions (FAQ)

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