Keychron C4 HE vs K2 Max: Wired Hall Effect vs Wireless 75%

Compare Keychron C4 HE vs K2 Max Differences Side by Side

This comparison is for buyers deciding between Keychron's high-performance wired model and their versatile wireless compact. The C4 HE offers cutting-edge Hall Effect technology and an 8000Hz polling rate in a full-size form, while the K2 Max provides tri-mode connectivity and a more portable 75% layout. The choice hinges on prioritizing raw, low-latency input for gaming versus the convenience of wireless use and desk space savings.

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Main differences	Released in 2026 Available in a 100% layout Built with the ANSI layout standard Utilizes Hall effect sensors Uses a Gasket Mount mounting style Supports Wired, Wired only connectivity Runs at a 8000 Hz polling rate Weighs about 970 g Sized at 30 x 446 x 138 mm Made with a Plastic case Offers Yes, Rgb, North-face, Rgb North-face RGB lighting	Released in 2024 Available in a 75% layout Built with the ISO, ANSI, ISO-DE, ISO-UK, ISO-Nordic, ISO-SW layout standard Features N-key rollover Uses a PCB Mount mounting style Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity Runs at a 1000 Hz polling rate Equipped with a 4000 mAh battery Weighs about 940 g Sized at 32 x 317 x 122 mm Made with a Aluminum, ABS case Offers Yes, Rgb, South-face, Rgb South-face, White, White South-face RGB lighting
Score	Scores Performance: 89.2 Build Quality: 82.9 Productivity: 94.9 Customizability: 92.6 Portability: 45.2	Scores Performance: 81.1 Build Quality: 85.6 Productivity: 94.5 Customizability: 92.3 Portability: 79.5
Name	Name Keychron C4 HE	Name Keychron K2 Max
Release year	Release year 2026	Release year 2024
Switch Options	Switch Options Linear, Tactile, Clicky	Switch Options Linear, Tactile, Clicky
Profile	Profile Normal Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 100%	Layout Size 75%
Layout Standard	Layout Standard ANSI	Layout Standard ISO, ANSI, ISO-DE, ISO-UK, ISO-Nordic, ISO-SW
Layout Ergonomics	Layout Ergonomics Normal	Layout Ergonomics Normal
Knob Support	Knob Support	Knob Support
Display Support	Display Support	Display Support
Mac/Win Support	Mac/Win Support	Mac/Win Support
Multi-Media Keys	Multi-Media Keys	Multi-Media Keys
USB-C	USB-C	USB-C
USB passthrough	USB passthrough	USB passthrough
Connection	Connection Wired, Wired only	Connection Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate	Polling Rate 8000 Hz	Polling Rate 1000 Hz
Battery capacity	Battery capacity -	Battery capacity 4000 mAh
Hall Effect Support	Hall Effect Support	Hall Effect Support
QMK Support	QMK Support	QMK Support
VIA Support	VIA Support	VIA Support
VIAL Support	VIAL Support	VIAL Support
N-Key Rollover	N-Key Rollover	N-Key Rollover
Rapid Trigger	Rapid Trigger	Rapid Trigger
Mount Style	Mount Style Gasket Mount	Mount Style PCB Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight Rgb, North-face	Backlight Rgb, South-face, White, White South-face
Case Colors	Case Colors	Case Colors
Case Material	Case Material Plastic	Case Material Aluminum, ABS
Keycaps Material	Keycaps Material PBT	Keycaps Material PBT
Dimensions	Dimensions 30 x 446 x 138 mm	Dimensions 32 x 317 x 122 mm
Weight	Weight 970g	Weight 940g

Keychron C4 HE 8K Magnetic Switch Keyboard

Keychron K2 Max QMK Wireless Mechanical Keyboard ISO Layout Collection

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Released in 2026
Available in a 100% layout
Built with the ANSI layout standard
Utilizes Hall effect sensors
Uses a Gasket Mount mounting style
Supports Wired, Wired only connectivity
Runs at a 8000 Hz polling rate
Weighs about 970 g
Sized at 30 x 446 x 138 mm
Made with a Plastic case
Offers Yes, Rgb, North-face, Rgb North-face RGB lighting

Released in 2024
Available in a 75% layout
Built with the ISO, ANSI, ISO-DE, ISO-UK, ISO-Nordic, ISO-SW layout standard
Features N-key rollover
Uses a PCB Mount mounting style
Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity
Runs at a 1000 Hz polling rate
Equipped with a 4000 mAh battery
Weighs about 940 g
Sized at 32 x 317 x 122 mm
Made with a Aluminum, ABS case
Offers Yes, Rgb, South-face, Rgb South-face, White, White South-face RGB lighting

Scores

Performance: 89.2
Build Quality: 82.9
Productivity: 94.9
Customizability: 92.6
Portability: 45.2

Scores

Performance: 81.1
Build Quality: 85.6
Productivity: 94.5
Customizability: 92.3
Portability: 79.5

Name

Keychron C4 HE

Name

Keychron K2 Max

Release year

2026

Release year

2024

Switch Options

Linear, Tactile, Clicky

Switch Options

Linear, Tactile, Clicky

Profile

Normal Profile

Profile

Normal Profile

Hot Swappable

Layout Size

100%

Layout Size

75%

Layout Standard

ANSI

Layout Standard

ISO, ANSI, ISO-DE, ISO-UK, ISO-Nordic, ISO-SW

Layout Ergonomics

Normal

Layout Ergonomics

Normal

Knob Support

Display Support

Mac/Win Support

Multi-Media Keys

USB-C

USB passthrough

Connection

Wired, Wired only

Connection

Bluetooth, 2.4 GHz, Wired, Wireless

Polling Rate

8000 Hz

Polling Rate

1000 Hz

Battery capacity

4000 mAh

Hall Effect Support

QMK Support

VIA Support

VIAL Support

N-Key Rollover

Rapid Trigger

Mount Style

Gasket Mount

Mount Style

PCB Mount

Screw in Stabilizers

Sound Dampening

Backlight

Rgb, North-face

Backlight

Rgb, South-face, White, White South-face

Case Colors

Case Material

Plastic

Case Material

Aluminum, ABS

Keycaps Material

PBT

Keycaps Material

PBT

Dimensions

30 x 446 x 138 mm

Dimensions

32 x 317 x 122 mm

Weight

970g

Weight

940g

Pros and Trade-offs

Your primary need dictates the winner. If your priority is the absolute lowest latency for competitive gaming or you require a full number pad, the wired Keychron C4 HE is the specialized tool. If you value a clean desk, need to switch between multiple devices wirelessly, or have limited space, the versatile Keychron K2 Max is the more practical daily driver.

Keychron C4 HE

+8000 Hz polling rate for ultra-low latency input.
+Hall Effect magnetic switches offer adjustable actuation and a different feel.
+Full-size layout includes a number pad.
+Gasket mount design for a potentially softer typing feel.
+North-facing RGB LEDs for shine-through keycap legends.

−Wired-only connectivity limits placement and adds cable clutter.
−Large full-size footprint requires significant desk space.
−Plastic case construction, compared to the K2 Max's aluminum frame option.

Keychron K2 Max

+Tri-mode wireless connectivity (Bluetooth, 2.4GHz, and wired).
+Compact 75% layout saves space while keeping arrow and function keys.
+Available with an aluminum frame for a more premium build.
+Wide selection of ISO layout options for European users.
+Includes a 4000mAh battery for wireless use.

−Lower 1000 Hz polling rate compared to the C4 HE.
−Lacks a dedicated number pad.
−South-facing RGB LEDs may not shine through keycap legends as brightly.

Which Keyboard Is Better for Your Needs?

The C4 HE is the clear choice for dedicated gaming setups and tasks requiring a number pad, like data entry or certain creative workflows. The K2 Max wins for office environments and travel due to its wireless freedom and compact size. For programming and modding, both are strong contenders, with the decision resting on layout preference versus wireless capability.

GamingKeychron C4 HE

•Higher 8000 Hz polling rate for reduced input lag.
•Hall Effect magnetic switches with adjustable actuation points.
•Wired-only connection ensures a consistent, interference-free signal.

OfficeKeychron K2 Max

•Tri-mode connectivity (Bluetooth, 2.4GHz, wired) for easy device switching.
•Compact 75% layout saves desk space while retaining essential keys.
•Offers multiple ISO layout options for international users.

ProgrammingKeychron C4 HE

•Full-size layout includes a dedicated number pad for data entry.
•Hall Effect switches and gasket mount may offer a unique, smooth typing feel.
•Supports QMK and VIA for deep key remapping and macro programming.

TravelKeychron K2 Max

•Smaller 75% footprint and slightly lower weight are easier to transport.
•Wireless operation eliminates the need for a cable on the go.
•Built-in 4000mAh battery for cordless use.

ModdingTie

•Both are hot-swappable and support QMK/VIA firmware.
•Both feature screw-in stabilizers and PBT keycaps.
•Both have sound-dampening foam (EVA in C4 HE, IXPE/PET/EPDM in K2 Max).

Content CreationKeychron C4 HE

•Full-size layout with number pad is beneficial for video editing shortcuts and numeric input.
•Dedicated media keys are listed as a feature.
•The high polling rate may benefit real-time editing scrubbing.

Frequently Asked Questions (FAQ)

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Compare Keychron C4 HE vs K2 Max Differences Side by Side

Pros and Trade-offs

Keychron C4 HE

Keychron K2 Max

Which Keyboard Is Better for Your Needs?

Frequently Asked Questions (FAQ)

What is the main difference between Hall Effect and mechanical switches?

Can the Keychron K2 Max be used wired?

Which keyboard is better for typing?

Do both keyboards work with Mac and Windows?

Can I change the switches on these keyboards?

What is the battery life of the Keychron K2 Max?

Which keyboard has better RGB lighting?

Is the 8000Hz polling rate on the C4 HE noticeable?

What accessories come in the box?

Can I reprogram the keys on these keyboards?

Which keyboard is more portable?

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