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Compare Keychron K4 Max vs K5 Pro Differences Side by Side

This comparison helps buyers decide between two wireless Keychron keyboards that prioritize different strengths. The K4 Max is a compact 96% board that adds 2.4 GHz connectivity, sound dampening foams (IXPE, PET, EPDM), and a steel plate for a more traditional typing feel at 1290g. The K5 Pro is a 100% full-size low profile aluminum frame board at 720g, using ultra-slim Gateron switches for a thinner design. The decision is hard because both support QMK/VIA, hot-swap switches, and have similar pricing, but they serve very different preferences for layout size, portability, and acoustic refinement.

87
Keychron K4 Max QMK Wireless Mechanical Keyboard ISO Layout Collection
88
Keychron K5 Pro QMK/VIA Wireless Custom Mechanical Keyboard ISO Layout Collection

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5.0 (1)
4.8 (8)
  • Released in 2025
  • Available in a 96% layout
  • Built with the ISO, ANSI layout standard
  • Includes screw-in stabilizers
  • Has built-in sound dampening
  • Uses a PCB Mount mounting style
  • Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity
  • Equipped with a 4000 mAh battery
  • 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
  • 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
  • Connects via USB-C
  • Uses a Tray Mount mounting style
  • Supports Bluetooth, Wired, Wireless connectivity
  • 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: 80.3
  • Productivity: 89.4
  • Customizability: 93
  • Portability: 50.8
Scores
  • Performance: 80.8
  • Build Quality: 79.8
  • Productivity: 79.8
  • Customizability: 89
  • Portability: 53.2
Name
Keychron K4 Max
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, 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, 2.4 GHz, 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
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, North-face, White
Case Colors
Case Colors
Case Material
ABS
Case Material
Aluminum, Plastic, ABS
Keycaps Material
PBT
Keycaps Material
ABS, PBT
Dimensions
31 x 391 x 140 mm
Dimensions
18 x 120 x 435 mm
Weight
1290g
Weight
720g
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Pros and Trade-offs

If you need a keyboard for gaming or want to enjoy a rich acoustic experience with foam layers, a steel plate, and 2.4 GHz low-latency wireless, go with the Keychron K4 Max. If you prioritize a full-size layout, an ultra-slim profile for a clutter-free desk, and a lighter weight for commuting, the Keychron K5 Pro is the better fit. Both are excellent QMK boards, but your choice depends on whether you want a compact powerhouse or a sleek standard full-size.

Keychron K4 Max

  • +2.4 GHz wireless connection with 1000 Hz polling rate, paired with a 4000mAh battery for extended gaming sessions
  • +Multiple layers of acoustic foams (IXPE, PET, EPDM) and a steel plate provide a refined sound and stable typing feel
  • +96% layout with included double-shot OSA profile PBT keycaps and south-facing RGB
  • +Very high customizability score, supporting most 3/5-pin MX switches and featuring screw-in stabilizers
  • +System toggle saves two separate layouts for Mac and Windows with included keycaps for both
  • −Heavier than the K5 Pro at 1290g, making it less ideal for travel
  • −Only 1 customer review available on the vendor site, limiting real-world feedback
  • −The 96% layout does not include a full number pad row, which some users may miss

Keychron K5 Pro

  • +Ultra-slim design with aluminum frame, weighing only 720g for easy portability
  • +Full-size 100% layout with 108 keys and a dedicated number pad for efficient data entry
  • +8 customer reviews averaging 4.8/5, with positive feedback from coders and long-term users
  • +Compatible with Gateron low profile hot-swap switches, allowing customization without soldering
  • +Low profile design is suitable for users who prefer a shallower typing angle and reduced wrist strain
  • −Wireless polling rate is limited to 90 Hz, significantly lower than the K4 Max's 1000 Hz in 2.4 GHz mode
  • −Hot-swap is limited to Gateron low profile switches only, not compatible with standard MX switches
  • −Smaller 2000mAh battery compared to the K4 Max's 4000mAh, reducing unplugged runtime
  • −Some reviews mention that VIA compatibility is not fully functional and requires using Keychron Launcher instead

Which Keyboard Is Better for Your Needs?

The K4 Max excels in gaming and content creation due to its 2.4 GHz connection, acoustic foams, and compact 96% layout. The K5 Pro wins in office and travel thanks to its full-size key count, ultra-slim profile, and lighter weight. For programming, the K4 Max's space-saving layout and dual-system support give it an edge. Modding is a tie since both boards support QMK/VIA and hot-swap, though the K4 Max offers more switch compatibility.

GamingKeychron K4 Max
  • •Supports 2.4 GHz wireless connection with 1000 Hz polling rate, essential for competitive gaming
  • •The vendor states the K4 Max is designed for peak gaming performance on the fly
  • •Includes multiple layers of acoustic foams (IXPE, PET, EPDM) and a steel plate for stability
OfficeKeychron K5 Pro
  • •Full-size 100% layout with 108 keys includes a dedicated number pad, ideal for data entry
  • •Ultra-slim low profile design (31% slimmer switches) fits easily under low desk monitor arms
  • •Aluminum frame and 720g weight make it easy to slide into a briefcase or laptop bag for commuting
ProgrammingKeychron K4 Max
  • •96% layout saves desk space while retaining the number row and arrow keys, popular among coders
  • •The vendor emphasizes compatibility with both Mac and Windows with a system toggle and two separate layouts saved
  • •OSA profile PBT keycaps provide a more comfortable fingertip feel for long typing sessions
TravelKeychron K5 Pro
  • •At 720g it is 570g lighter than the K4 Max, making it far more portable for frequent travel
  • •The low profile Gateron switches are 31% slimmer, contributing to a thinner overall design
  • •Bluetooth 5.1 connects up to 3 devices wirelessly without needing a dongle
ModdingTie
  • •Both support QMK and VIA firmware for full key remapping and macros via Keychron Launcher
  • •Both have hot-swap capabilities, allowing switch changes without soldering
  • •The K4 Max has a higher customizability score and comes with screw-in stabilizers for modding potential
  • •The K5 Pro is limited to Gateron low profile switches for hot-swap, while the K4 Max supports most 3/5-pin MX switches
Content CreationKeychron K4 Max
  • •The 96% layout provides a number pad in a smaller footprint, useful for editing timelines without clutter
  • •South-facing RGB is less prone to interference from Cherry-profile keycaps and provides better illumination from the typist's angle
  • •Includes dedicated multi-media keys for quick volume and playback control

Frequently Asked Questions (FAQ)

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