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Compare Keychron K3 HE vs K4 Pro Differences Side by Side

This comparison is for buyers torn between two very different Keychron keyboards. The K3 HE is a radical low-profile design with innovative Hall Effect magnetic switches, adjustable actuation, and a lightweight 575g build. The K4 Pro is a proven 96% mechanical keyboard with a steel plate, screw-in stabilizers, and a much wider switch compatibility. The decision is hard because one offers bleeding-edge gaming features and portability, while the other provides a dedicated numpad, extensive community support, and a lower price point.

86
Keychron K3 HE Wireless Magnetic Switch Custom ISO Keyboard
92
Keychron K4 Pro QMK/VIA Wireless Mechanical Keyboard

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5.0 (4)
4.7 (7)
  • Released in 2026
  • Has Magnetic, Linear, Tactile, Clicky switch options
  • Features a low-profile design
  • Available in a 75% layout
  • Built with the ISO, ISO-DE, ISO-ES, ISO-FR, ANSI layout standard
  • Utilizes Hall effect sensors
  • Enables rapid trigger functionality
  • Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity
  • Equipped with a 2600 mAh battery
  • Weighs about 575 g
  • Sized at 25 x 319 x 126 mm
  • Made with a Aluminum, Wood, ABS case
  • Features PBT keycaps
  • Offers Yes, Rgb, White, North-face, Rgb North-face, White North-face RGB lighting
  • Released in 2022
  • Has Linear, Tactile, Clicky switch options
  • Available in a 96% layout
  • Built with the ANSI, ISO, ISO-DE, ISO-ES, ISO-FR, ISO-Nordic, ISO-SW, ISO-UK layout standard
  • Provides dedicated media keys
  • Includes screw-in stabilizers
  • Has built-in sound dampening
  • Supports Bluetooth, Wired, Wireless connectivity
  • Equipped with a 4000 mAh battery
  • Weighs about 1280 g
  • Sized at 31 x 391 x 139 mm
  • Made with a Plastic, ABS case
  • Features PBT, ABS keycaps
  • Offers Yes, Rgb, White, South-face, Rgb South-face, White South-face RGB lighting
Scores
  • Performance: 92.4
  • Build Quality: 82.7
  • Productivity: 81.6
  • Customizability: 86.9
  • Portability: 81.8
Scores
  • Performance: 81.5
  • Build Quality: 83.9
  • Productivity: 94.7
  • Customizability: 97.3
  • Portability: 53.6
Name
Keychron K3 HE
Name
Keychron K4 Pro
Release year
2026
Release year
2022
Switch Options
Magnetic, 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
ISO, ISO-DE, ISO-ES, ISO-FR, ANSI
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, 2.4 GHz, Wired, Wireless
Connection
Bluetooth, Wired, Wireless
Polling Rate
1000 Hz
Polling Rate
1000 Hz
Battery capacity
2600 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
Tray 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
Aluminum, Wood, ABS
Case Material
Plastic, ABS
Keycaps Material
PBT
Keycaps Material
PBT, ABS
Dimensions
25 x 319 x 126 mm
Dimensions
31 x 391 x 139 mm
Weight
575g
Weight
1280g
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Pros and Trade-offs

If you prioritize cutting-edge gaming features like variable actuation and analog input, the K3 HE is the clear choice. If you need a workhorse keyboard with a numpad, deep modding potential, and a lower price, the K4 Pro delivers proven versatility. Both keyboards share QMK/VIA support and strong build quality from Keychron.

Keychron K3 HE

  • +Hall Effect magnetic switches with adjustable actuation from 0.2 to 2.9 mm and 0.1 mm sensitivity.
  • +Rapid Trigger, Snap Click, Last Key Priority, and Analog Mode for competitive gaming.
  • +Ultra-low profile 22.0mm front height and only 575g weight for excellent portability.
  • +Aluminum frame with natural wood accents and CNC aluminum plate.
  • +Comes with LSA double-shot PBT keycaps and multiple acoustic foam layers.
  • −Only compatible with Keychron Ultra-Fast Lime Low-Profile magnetic switches, limiting hot-swap options.
  • −No dedicated numpad on the 75% layout.
  • −256 KB MCU may restrict very complex firmware configurations.
  • −Keycaps are not shine-through, reducing RGB visibility.

Keychron K4 Pro

  • +Full 96% layout with a dedicated number pad for productivity.
  • +4000mAh rechargeable Li-polymer battery for extended wireless use.
  • +Hot-swappable with almost all 3-pin and 5-pin MX mechanical switches.
  • +Steel plate, screw-in PCB stabilizers, sound-absorbing foam, and silicone bottom pad.
  • +Lower price point than the K3 HE, especially in barebones form.
  • −Heavier at 1280g and larger footprint, less portable.
  • −No 2.4 GHz connectivity, only Bluetooth and wired.
  • −No Hall Effect or adjustable actuation features for advanced gaming.
  • −Some early units had reported PCB issues with the numpad 0/INS key.

Which Keyboard Is Better for Your Needs?

The K3 HE dominates in gaming and travel thanks to its Hall Effect switches, adjustable actuation, and ultra-light 575g weight. The K4 Pro wins for office work and modding because of its 96% numpad layout, 4000mAh battery, and broad MX-style switch compatibility. Programming is a tie since both offer QMK/VIA support but different layout philosophies. Content Creation favors the K3 HE for its analog mode and compact footprint.

GamingKeychron K3 HE
  • •Hall Effect magnetic switches with adjustable actuation from 0.2 to 2.9 mm and 0.1 mm sensitivity.
  • •Rapid Trigger, Snap Click, Last Key Priority, and Analog Mode for competitive gaming.
  • •1000 Hz polling rate in both wired and 2.4 GHz modes.
  • •Ultra-low profile design reduces hand fatigue during long sessions.
OfficeKeychron K4 Pro
  • •Full 96% layout with a dedicated numpad for data entry.
  • •4000mAh battery offers longer wireless life between charges.
  • •South-facing RGB and OSA profile PBT keycaps for a comfortable typing experience.
  • •Screw-in PCB stabilizers and silicone dampening pad for quieter operation.
ProgrammingTie
  • •Both support QMK and VIA for full key remapping and macros.
  • •K3 HE offers low-profile switches which may reduce finger travel.
  • •K4 Pro has a full 96% layout that some coders prefer for dedicated keys.
  • •K3 HE is lighter at 575g, making it easier to move between desks.
TravelKeychron K3 HE
  • •Significantly lighter at 575g vs 1280g.
  • •Ultra-slim 22.0mm front height and 75% layout for compact packing.
  • •2.4 GHz, Bluetooth 5.2, and wired connectivity for any environment.
  • •Aluminum and wood frame with low-profile PBT keycaps for durability on the go.
ModdingKeychron K4 Pro
  • •Hot-swappable with almost all MX mechanical switches (3-pin and 5-pin).
  • •Steel plate, screw-in PCB stabilizers, multiple foam layers, and DIY barebones option.
  • •Large community and extensive third-party keycap and part compatibility.
  • •Available in multiple ISO layouts and barebone version for custom builds.
Content CreationKeychron K3 HE
  • •Magnetic analog mode offers pressure-sensitive inputs for creative software.
  • •4-in-1 action keys allow multiple commands per key for efficient workflows.
  • •Compact 75% layout saves desk space for drawing tablets or audio interfaces.
  • •Direct 2.4 GHz connection provides low-latency feedback for time-sensitive tasks.

Frequently Asked Questions (FAQ)

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