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Compare Keychron K3 HE vs K4 HE Differences Side by Side

Both the Keychron K3 HE and K4 HE are Hall Effect magnetic switch keyboards using advanced sensing technology for adjustable actuation, Rapid Trigger, and analog mode. The decision is hard because each targets a different priority: the K3 HE is an ultra-slim, 75% low-profile board designed for travel and desk space savings, while the K4 HE offers a full 96% layout with a numpad and a much larger 4000mAh battery. This comparison is for buyers who want magnetic switch performance but need to decide between a compact, portable form factor and a feature-rich, full-size workhorse.

86
Keychron K3 HE Wireless Magnetic Switch Custom ISO Keyboard
92
Keychron K4 HE Wireless Magnetischer Schalter Benutzerdefinierte Tastatur ISO Layout Kollektion

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3.7 (3)
4.3 (22)
  • Released in 2026
  • Features a low-profile design
  • Available in a 75% layout
  • Built with the ISO, ISO-DE, ISO-ES, ISO-FR, ANSI layout standard
  • 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
  • Offers Yes, Rgb, White, North-face, Rgb North-face, White North-face RGB lighting
  • Released in 2025
  • Available in a 96% layout
  • Built with the ISO, ISO-UK, ISO-DE, ISO-CH, ISO-ES, ISO-FR, ANSI, ISO-SW, ISO-Nordic layout standard
  • Includes screw-in stabilizers
  • Has built-in sound dampening
  • Supports Bluetooth, Wired, Wireless, 2.4 GHz connectivity
  • Equipped with a 4000 mAh battery
  • Weighs about 1090 g
  • Sized at 31 x 126 x 373 mm
  • Made with a Plastic, Aluminum, ABS, Wood case
  • Offers Yes, Rgb, North-face, Rgb North-face RGB lighting
Scores
  • Performance: 92.4
  • Build Quality: 82.4
  • Productivity: 81.5
  • Customizability: 86.6
  • Portability: 81.7
Scores
  • Performance: 92.3
  • Build Quality: 87
  • Productivity: 94.1
  • Customizability: 89.8
  • Portability: 56.3
Name
Keychron K3 HE
Name
Keychron K4 HE
Release year
2026
Release year
2025
Switch Options
Magnetic, Linear, Tactile, Clicky
Switch Options
Magnetic, 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
ISO, ISO-UK, ISO-DE, ISO-CH, ISO-ES, ISO-FR, ANSI, ISO-SW, ISO-Nordic
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, 2.4 GHz
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, North-face
Case Colors
Case Colors
Case Material
Aluminum, Wood, ABS
Case Material
Plastic, Aluminum, ABS, Wood
Keycaps Material
PBT
Keycaps Material
PBT
Dimensions
25 x 319 x 126 mm
Dimensions
31 x 126 x 373 mm
Weight
575g
Weight
1090g
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Pros and Trade-offs

For buyers who need a compact, travel-friendly keyboard with low-profile ergonomics, the Keychron K3 HE is the better fit, offering a lightweight aluminum-wood build at 575g. However, if you require a full numpad, longer battery life, and wider switch compatibility, the Keychron K4 HE delivers more productivity features and a richer acoustic experience with its foam layers. Choose based on whether portability or layout completeness matters more to your daily use.

Keychron K3 HE

  • +Ultra-slim low-profile design with 22.0mm front height for ergonomic typing and easy transport.
  • +Lightweight at only 575g, making it highly portable.
  • +LSA double-shot PBT keycaps resist oil and wear over time.
  • +Aluminum and wood frame adds aesthetic appeal and structural rigidity.
  • −Hot-swap compatible only with Keychron Ultra-Fast Lime magnetic switches, limiting replacement options.
  • −Smaller 2600mAh battery offers up to 55 hours, significantly less than the K4 HE.
  • −No numpad on the 75% layout may slow down data entry work.

Keychron K4 HE

  • +Full 96% layout with numpad enhances productivity for office and content creation tasks.
  • +Large 4000mAh battery provides up to 110 hours of wireless use.
  • +Compatible with Gateron double-rail magnetic switches, offering more hot-swap flexibility.
  • +Multiple internal foam layers including EVA, EPDM, and silicone for quiet, thocky acoustics.
  • −Heavy design at around 1090g, less portable than the K3 HE.
  • −Taller profile (up to 40.9mm back height) may require a wrist rest for comfortable long sessions.
  • −Some customer reviews mention keystroke registration issues, though others report satisfaction.
  • −More expensive than the K3 HE, especially for the Special Edition with wood accents.

Which Keyboard Is Better for Your Needs?

The K4 HE wins outright in gaming, office, modding, and content creation due to its full 96% layout, larger battery, and Gateron double-rail switches with TMR sensors. The K3 HE takes the lead in programming and travel, where its lightweight, low-profile 75% design offers better portability and ergonomics. Both keyboards share core magnetic switch features like adjustable actuation, Rapid Trigger, and QMK/VIA support, making the layout and battery the main differentiators. For users who prioritize numpad access and longer runtime, the K4 HE is the clear choice; for those who value compactness and easy transport, the K3 HE wins.

GamingKeychron K4 HE
  • •1000 Hz polling rate across wired and 2.4 GHz wireless, matching K3 HE, but with Gateron double-rail magnetic switches featuring TMR sensors for higher resolution.
  • •Broader switch compatibility with Gateron double-rail magnetic switches, supported by 13 customer reviews.
  • •Larger 4000mAh battery for longer wireless gaming sessions without recharging.
OfficeKeychron K4 HE
  • •96% layout includes a full numpad, enhancing data entry and spreadsheet productivity.
  • •Rated higher in productivity metrics relative to price tier, suggesting better layout efficiency for office tasks.
  • •Multiple sound dampening layers including EVA foam, EPDM foam, and silicone pad for quieter typing in shared spaces.
ProgrammingKeychron K3 HE
  • •75% low-profile layout saves desk space while still providing dedicated function keys and arrow cluster for coding workflows.
  • •Ultra-thin 22.0mm front height reduces wrist strain during long typing sessions.
  • •Lightweight 575g design makes it easy to shift or transport between desks.
TravelKeychron K3 HE
  • •At 575g, it is nearly half the weight of the K4 HE, making it more portable.
  • •Low-profile 22.0mm height fits more easily into bags and backpacks.
  • •Compact 75% layout requires less desk space in cafes or shared workstations.
ModdingKeychron K4 HE
  • •Hot-swap compatible with a wider range of Gateron double-rail magnetic switches available from Keychron.
  • •Screw-in stabilizers and multiple sound dampening layers (IXPE, PET, Latex, EPDM) offer more tuning potential.
  • •Internal construction includes a silicone acoustic pad and bottom case PET film for deeper acoustic customization.
Content CreationKeychron K4 HE
  • •Full 96% layout with numpad speeds up numeric input in video editing and animation software.
  • •OSA and Cherry profile keycap options provide a familiar typing feel for long editing sessions.
  • •Superior battery life (up to 110 hours) supports extended wireless use without interruption.

Frequently Asked Questions (FAQ)

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