KeebFinder
Not sure which keyboard to choose? Try the Keyboard Finder now!

Compare Keychron K4 Max vs K5 QMK V2 Differences Side by Side

This comparison is for buyers deciding between two very different form factors from Keychron: the K4 Max and the K5 QMK V2. The decision is challenging because both offer QMK/VIA support and wireless connectivity, yet they appeal to distinct needs. The K4 Max is a 96% layout keyboard with a standard profile and the advantage of 2.4 GHz wireless. The K5 QMK V2 is a full-size, ultra-slim low-profile board with a compact typing angle and a different material construction.

87
Keychron K4 Max QMK Wireless Mechanical Keyboard ISO Layout Collection
84
Keychron K5 QMK Wireless Mechanical Keyboard (ISO Layout) - Version 2

Select a keyboard to compare

5.0 (1)
5.0 (2)
  • Released in 2025
  • Available in a 96% layout
  • Built with the ISO, ANSI layout standard
  • Includes screw-in stabilizers
  • Has built-in sound dampening
  • 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 2024
  • Features a low-profile design
  • Available in a 100% layout
  • Built with the ISO-DE, ISO-Nordic, ISO-UK, ISO, ANSI layout standard
  • Connects via USB-C
  • Supports Bluetooth, Wired, Wireless connectivity
  • Equipped with a 2000 mAh battery
  • Made with a ABS, Aluminum case
  • Features ABS keycaps
  • Offers Yes, Rgb, White, North-face, Rgb North-face RGB lighting
Scores
  • Performance: 82.1
  • Build Quality: 80.3
  • Productivity: 89.2
  • Customizability: 92.9
  • Portability: 50.9
Scores
  • Performance: 81.8
  • Build Quality: 78.3
  • Productivity: 80.1
  • Customizability: 89.6
  • Portability: 53.9
Name
Keychron K4 Max
Name
Keychron K5 QMK V2
Release year
2025
Release year
2024
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-DE, ISO-Nordic, ISO-UK, ISO, 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
PCB Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb, South-face, White, White South-face
Backlight
 
Rgb, White, North-face
Case Colors
Case Colors
Case Material
ABS
Case Material
ABS, Aluminum
Keycaps Material
PBT
Keycaps Material
ABS
Dimensions
31 x 391 x 140 mm
Dimensions
-
Weight
1290g
Weight
-
*Something incorrect or missing? Please
let me know
!

Pros and Trade-offs

Choose the Keychron K4 Max if you want a compact keyboard that does not sacrifice features for performance, offering 2.4 GHz wireless, a massive battery, and extensive modding possibilities. Opt for the Keychron K5 QMK V2 if you prioritize an ultra-slim, low-profile design and a full-size layout with a metal frame, and you are comfortable relying on Bluetooth for wireless use. Your decision ultimately balances layout size and profile against connectivity and battery life.

Keychron K4 Max

  • +Compact 96% layout saves desk space while retaining a full number pad.
  • +2.4 GHz wireless connection provides a 1000 Hz polling rate for low-latency performance.
  • +Large 4000mAh battery for extended use between charges.
  • +PBT keycaps are highly durable and resistant to developing a shiny, oily surface.
  • +Multiple layers of acoustic foam (IXPE, PET, EPDM) for a refined typing sound.
  • −The 3-degree typing angle is fixed and cannot be adjusted independently of the provided stand levels.
  • −ABS plastic case material may not feel as premium as an aluminum option.
  • −Heavier weight (1290g) makes it less portable than some alternatives.
  • −The standard profile switches and taller keycaps can add to the overall desk height.

Keychron K5 QMK V2

  • +Ultra-slim low-profile design (33% slimmer switches) for a sleek and ergonomic typing experience.
  • +Aluminum frame (ABS+Aluminum) provides a sturdier and more premium feel.
  • +Bluetooth 5.2 for a stable wireless connection to multiple devices.
  • +Hot-swappable with dedicated Keychron Milk POM low-profile switches for a deep, thocky sound.
  • +12 dedicated multimedia keys for easy media control.
  • −No 2.4 GHz connectivity, relying solely on Bluetooth (125 Hz) or wired (1000 Hz) modes.
  • −Smaller 2000mAh battery, requiring more frequent recharging.
  • −ABS keycaps are less durable against oil and shine compared to PBT keycaps.
  • −Switch compatibility is limited to Keychron or Gateron low-profile mechanical switches, not standard MX switches.

Which Keyboard Is Better for Your Needs?

The K4 Max wins decisively for Gaming, Travel, Programming, and Modding, largely due to its 2.4 GHz support, larger battery, more universal switch compatibility, and the 96% form factor that saves space without sacrificing keys. Both keyboards are strong contenders for Office and Content Creation, where their shared QMK/VIA programmability and wireless connectivity are major assets. The choice in these tied categories comes down to personal preference for a traditional profile versus an ultra-slim low-profile design.

GamingKeychron K4 Max
  • •The K4 Max supports a 2.4 GHz connection with a 1000 Hz polling rate, which is typically preferred for gaming over Bluetooth.
  • •The K4 Max includes multiple layers of acoustic foam (IXPE, PET, EPDM) for a better sound experience, which can enhance immersion.
  • •Its standard profile switches and steel plate provide a more traditional, responsive typing feel that many gamers prefer.
OfficeTie
  • •Both keyboards offer QMK and VIA support for custom key mapping and macros, which can boost productivity.
  • •Both are wireless (Bluetooth), providing a clean desk setup free of cables.
  • •The K4 Max's PBT keycaps are more durable and oil-resistant, while the K5 QMK V2's ultra-slim profile may reduce wrist strain for some users.
  • •The K4 Max has a 4000mAh battery for longer battery life between charges.
ProgrammingKeychron K4 Max
  • •The K4 Max’s 96% layout retains all essential keys like arrow keys and a number pad without taking up the full desk space of a 100% board.
  • •The K4 Max comes with OSA profile PBT keycaps which are durable and oil-resistant for long typing sessions.
  • •Multiple layers of acoustic foam contribute to a quieter typing experience, which can be beneficial in a shared work space.
TravelKeychron K4 Max
  • •The K4 Max uses a more compact 96% layout, saving desk space and being easier to pack than a full 100% layout.
  • •Its 4000mAh battery is significantly larger, meaning fewer charges are needed while on the go.
  • •The 2.4 GHz connection provides a stable, low-latency link that doesn't rely on a stable Bluetooth environment.
ModdingKeychron K4 Max
  • •The K4 Max provides a hot-swappable PCB compatible with almost all 3-pin and 5-pin MX switches, offering a wider range of options.
  • •The vendor description highlights upgraded screw-in stabilizers with reinforced sidewalls for improved stability, a desirable modding feature.
  • •The K4 Max’s south-facing RGB LEDs are designed to be compatible with Cherry-profile keycaps without interference.
Content CreationTie
  • •Both keyboards support QMK and VIA for custom shortcuts and macros, which can streamline editing workflows.
  • •Both keyboards are wireless (Bluetooth), helping to reduce cable clutter on a desk.
  • •The K5 QMK V2's ultra-slim design might be more aesthetically pleasing in a studio or creative setup, whereas the K4 Max offers a larger battery and a more standard typing feel.

Frequently Asked Questions (FAQ)

Discover similar products

You might also like similar products in that price range:

91
$84
Keychron K4 QMK Wireless Mechanical Keyboard (ISO Layout) - Version 3
Keychron K4 V3
96%,
Hotswap,
Wireless,
Wired,
RGB/ White LEDs,
VIA,
QMK,
Tray Mount

86
$94
Keychron K5 Max QMK Wireless Custom Mechanical Keyboard ISO Layout Collection
Keychron K5 Max
100%,
Hotswap,
Wireless,
Wired,
RGB/ White LEDs,
VIA,
QMK,
Alu case,
PCB Mount

92
$69
Keychron K4 Pro QMK/VIA Wireless Mechanical Keyboard
Keychron K4 Pro
96%,
Hotswap,
Wireless,
Wired,
RGB/ White LEDs,
VIA,
QMK,
Tray Mount

85
$106
Keychron K1 Max QMK Wireless Custom Mechanical Keyboard ISO Layout Collection
Keychron K1 Max
80%,
Hotswap,
Wireless,
Wired,
RGB/ White LEDs,
VIA,
QMK,
Alu case,
PCB Mount

88
$85
Keychron K17 Max QMK Wireless Custom Mechanical Keyboard ISO Layout Collection
Keychron K17 Max
96%,
Hotswap,
Wireless,
Wired,
RGB/ White LEDs,
Knob,
VIA,
QMK,
Alu case,
PCB Mount

84
$94
Keychron K1 QMK Wireless Mechanical Keyboard (ISO Layout) - Version 6
Keychron K1 V6
80%,
Hotswap,
Wireless,
Wired,
RGB/ White LEDs,
VIA,
QMK,
Alu case,
Top Mount

96
$89
Keychron V6 Max QMK Wireless Custom Mechanical Keyboard ISO Layout Collection
Keychron V6 Max
100%,
Hotswap,
Wireless,
Wired,
RGB,
Knob,
VIA,
QMK,
Gasket Mount

84
$109
Keychron K13 Max QMK Wireless Custom Mechanical Keyboard ISO Layout Collection
Keychron K13 Max
80%,
Hotswap,
Wireless,
Wired,
RGB/ White LEDs,
VIA,
QMK,
Alu case,
PCB Mount

97
$99
Keychron V5 Max QMK Wireless Custom Mechanical Keyboard ISO Layout Collection
Keychron V5 Max
96%,
Hotswap,
Wireless,
Wired,
RGB,
Knob,
VIA,
QMK,
Gasket Mount

73
$115
Keychron K5 QMK Wireless Mechanical Keyboard (ISO Layout) - Version 2
Keychron K5 V2
100%,
Hotswap,
Wireless,
Wired,
RGB/ White LEDs,
QMK,
Alu case