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Compare Keychron J4 vs V4 Differences Side by Side

This comparison is for buyers deciding between Keychron's wireless and wired custom keyboard lines. The J4 offers a full wireless suite in a Tenkeyless form, while the V4 is a wired-only 60% board focused on deep customization. The choice is difficult because both support QMK/VIA firmware and hot-swapping, but they cater to fundamentally different priorities in layout and connectivity.

77
Keychron J4 QMK Wireless Mechanical Keyboard
91
Keychron V4 QMK Custom Mechanical Keyboard ISO Layout Collection

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0.0 (0)
5.0 (18)
  • Released in 2025
  • Available in a 80% layout
  • Built with the ANSI layout standard
  • Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity
  • Equipped with a 4000 mAh battery
  • Features PBT keycaps
  • Offers Yes, Rgb, North-face, Rgb North-face RGB lighting
  • Released in 2022
  • Available in a 60% layout
  • Built with the ISO, JIS, ANSI, ISO-DE layout standard
  • Comes with a knob
  • Compatible with both Mac and Windows
  • Connects via USB-C
  • Includes screw-in stabilizers
  • Uses a Tray Mount mounting style
  • Supports Wired, Wired only connectivity
  • Weighs about 730 g
  • Sized at 20 x 117 x 304 mm
  • Made with a Plastic, ABS case
  • Features ABS, PBT, keycaps
  • Offers Yes, Rgb, South-face, Rgb South-face RGB lighting
Scores
  • Performance: 69.9
  • Build Quality: 71.1
  • Productivity: 73.9
  • Customizability: 86.6
  • Portability: 66.4
Scores
  • Performance: 66.6
  • Build Quality: 86.1
  • Productivity: 94.7
  • Customizability: 99.8
  • Portability: 74.7
Name
Keychron J4
Name
Keychron V4
Release year
2025
Release year
2022
Switch Options
Linear, Tactile, Clicky
Switch Options
Linear, Tactile, Clicky
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
80%
Layout Size
60%
Layout Standard
ANSI
Layout Standard
ISO, JIS, ANSI, ISO-DE
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
Wired, Wired only
Polling Rate
1000 Hz
Polling Rate
1000 Hz
Battery capacity
4000 mAh
Battery capacity
-
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
-
Mount Style
Tray Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb, North-face
Backlight
 
Rgb, South-face
Case Colors
Case Colors
Case Material
-
Case Material
Plastic, ABS
Keycaps Material
PBT
Keycaps Material
ABS, PBT,
Dimensions
-
Dimensions
20 x 117 x 304 mm
Weight
-
Weight
730g
*Something incorrect or missing? Please
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Pros and Trade-offs

Your primary need dictates the choice. If wireless operation and a full TKL layout are non-negotiable for your desk setup and workflow, the Keychron J4 is the appropriate tool. If you prioritize a compact, wired keyboard as a foundation for deep customization and modding, the Keychron V4 offers exceptional value and flexibility in its price tier.

Keychron J4

  • +Tri-mode connectivity (2.4 GHz, Bluetooth 5.2, wired) for flexible device switching.
  • +TKL (80%) layout retains function row and navigation cluster.
  • +Includes multiple layers of acoustic foam (IXPE, PET, EPDM) for sound dampening.
  • +Offers adjustable typing angles (4.5° and 9.6°) for ergonomics.
  • +North-facing RGB with per-key and zone lighting customization via software.
  • −Battery-dependent for wireless use, with a listed capacity of only 1mAh (likely a placeholder, indicating potential battery life uncertainty).
  • −Larger TKL footprint is less portable than a 60% board.
  • −No barebones kit option is mentioned, limiting initial build flexibility.

Keychron V4

  • +Highly customizable with a barebone kit option available.
  • +Features screw-in PCB stabilizers for improved stability and modding potential.
  • +South-facing RGB LEDs prevent interference with Cherry and OEM profile keycaps.
  • +Offers extensive layout support including ANSI, ISO, JIS, and ISO-DE.
  • +Includes a Type-C cable and a Type-A to Type-C adapter in the box.
  • −Wired-only connectivity, lacking wireless options.
  • −60% layout requires using layers for arrow keys, function row, and navigation, which has a learning curve.
  • −Case material is listed as ABS plastic, which may feel less premium than metal alternatives.

Which Keyboard Is Better for Your Needs?

The Keychron J4 wins for office use and content creation due to its wireless versatility and TKL layout, while also being the pick for gaming thanks to its wireless performance. The Keychron V4 is the clear choice for travel due to its small 60% size and for modding due to its barebones option and screw-in stabilizers. For programming, it's a tie, as both offer the crucial QMK/VIA programmability on different form factors.

GamingKeychron J4
  • •The J4 offers a 1000 Hz polling rate over its 2.4 GHz wireless connection for low-latency gaming away from the desk.
  • •Its TKL (80%) layout retains dedicated arrow and navigation keys useful for many games.
  • •The vendor description notes its 2.4 GHz mode is designed for peak gaming performance.
OfficeKeychron J4
  • •Wireless connectivity via Bluetooth 5.2 allows easy switching between multiple devices like a computer, phone, and tablet.
  • •The TKL layout includes dedicated function row and navigation keys for productivity shortcuts.
  • •Multiple acoustic foam layers, including IXPE and EPDM per the vendor, may provide a quieter typing sound in shared spaces.
ProgrammingTie
  • •Both keyboards support QMK and VIA for extensive key remapping and layer creation, essential for coding workflows.
  • •The J4's TKL layout offers immediate access to arrow and navigation keys.
  • •The V4's 60% layout requires layers for those keys but saves substantial desk space.
TravelKeychron V4
  • •The V4's 60% layout is significantly more compact, with dimensions of 304mm x 117mm.
  • •It is a wired-only keyboard, eliminating the need to manage or charge a battery while on the go.
  • •Its weight of 730g, while not ultra-light, is manageable for a keyboard with a steel plate.
ModdingKeychron V4
  • •The V4 is explicitly marketed as a fully customizable entry-level custom keyboard with a barebones kit option.
  • •It features screw-in PCB stabilizers, which are generally preferred for modding over clip-in styles.
  • •The vendor lists support for third-party screw-in stabilizers and includes detailed specs for modders.
Content CreationKeychron J4
  • •The J4's wireless connectivity allows for a cleaner desk setup and flexible positioning for ergonomics during long sessions.
  • •Media keys are listed as a feature, providing quick access to playback controls.
  • •The adjustable typing angles (4.5° & 9.6°) and ergonomic keycap profiles can aid comfort during extended use.

Frequently Asked Questions (FAQ)

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