Keychron C4 HE vs Q0Full Size or Numpad
Choose the C4 HE for a full-size Hall Effect keyboard with 8000 Hz polling, or the Q0 for a compact aluminum number pad.
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Which one should you get?
Get the
Keychron C4 HE
Hall effect
Build quality in the top 10% of 100% boards under $100.
- Full-size ANSI layout with multi-media keys.
- Hall Effect magnetic switches and 8000 Hz polling rate.
- Gasket mount, steel plate, and plastic case.
- Magnetic switches only. Standard MX switches will not fit.
- North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
Get the
Keychron Q0
Build quality in the top 10% of 60% boards under $100.
- Compact 129 x 89 mm footprint for a standalone number pad.
- Aluminum case and steel plate.
- Hot-swappable switches with QMK and VIA support.
- South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
- Compact layout only. No function row, dedicated arrow keys, or numpad.
Choose the C4 HE if you need one full-size keyboard and value Hall Effect switches, adjustable actuation, and 8000 Hz polling. Choose the Q0 if you already have a keyboard and want a compact aluminum number pad with QMK and VIA support. For travel, consider the Q0's small footprint alongside its 2200 g weight.
The differences that matter
Skip the 40-row spec sheet. These are the specs that change how each board feels, sounds, and fits your desk.
Keychron C4 HE
Keychron Q0
Layout size
100%
60%
Hall effect (magnetic)
Yes
No
Adjustable actuation helps in games and not in normal typing
Max polling rate
8,000 Hz
1,000 Hz
Higher polling helps competitive FPS and does nothing for typing
Case material
Plastic
Aluminum
Mount style
Gasket Mount
Tray Mount
- Keychron C4 HE
- Keychron Q0
- Performance
- 8964
- Build quality
- 8385
- Productivity
- 9572
- Customizability
- 9292
- Portability
- 4569
- Connection: Wired
- Hot-swappable
- Switch options: Clicky, Linear, Tactile
- QMK
- VIA
- Plate material: Steel
What will you mostly use it for?
The C4 HE is the more self-contained choice for gaming, office work, programming, and content creation because it is a full-size keyboard with Hall Effect switches. The Q0 fits a different role, adding number-pad input in a much smaller footprint, although it is heavy for travel. Modding is close: both support hot-swapping and QMK and VIA, while the Q0's barebone option and the C4 HE's magnetic switch design offer different customization routes.
Pick the Keychron C4 HE
- The C4 HE has Hall Effect magnetic switches and an 8000 Hz polling rate.
- The Q0 is a number pad with a 1000 Hz polling rate, rather than a full keyboard.
Keychron C4 HE vs Q0 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
13 of 25 specs differ
Keychron C4 HE
Keychron Q0
Switch options
Hall effect (magnetic)
Hot-swappable
Mount style
Sound dampening
Screw-in stabilizers
Layout size
Layout standard
Ergonomics
Display
Media keys
Connection
Max polling rate
USB-C
Case material
Plate material
Keycaps
Weight
Dimensions
Typing angle
Backlight
QMK
VIA
Mac & Windows
Released
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Keychron C4 HE vs Q0: your questions
Yes. The C4 HE is listed with a 100% ANSI layout, and its vendor description also identifies it as full size.
The Q0 vendor listing describes it as a custom number pad. It does not serve the same full-size keyboard role as the C4 HE.
The C4 HE is listed at 8000 Hz, while the Q0 is listed at 1000 Hz. The C4 HE vendor description says its polling rate can be switched among 1000 Hz, 4000 Hz, and 8000 Hz through Launcher.
Yes. The C4 HE is listed as a Hall Effect keyboard, and the vendor identifies its switches as Keychron Ultra-fast Lime Magnetic Switches. The vendor says compatible Hall Effect magnetic switches can be swapped.
Both are listed as hot-swappable. The C4 HE vendor description specifies compatible Hall Effect magnetic switches, while the Q0 listing offers a barebone version without switches or keycaps.
Both product metadata listings specify QMK and VIA support. The vendor descriptions also identify Keychron Launcher for remapping and macros.
The Q0 has a much smaller listed footprint at 129 x 89 mm, compared with the C4 HE at 446 x 138 mm. However, the Q0 weighs 2200 g, so its compact size does not mean it is light.
The C4 HE has a plastic case, steel plate, and PBT keycaps. The Q0 has an aluminum case, steel plate, and PBT keycaps.
The C4 HE is the more complete office keyboard, with a 100% ANSI layout and multi-media keys. Its listing specifies Mac and Windows support; the Q0 is a number pad, and its vendor description lists macOS.
The C4 HE vendor description specifies EVA acoustic foam and says the fully assembled package includes foams. The Q0 vendor listing names its PCB, case, and steel plate, but does not list foam in the package.
Yes. The Q0 vendor listing offers a barebone version, which does not include keycaps or switches. Its fully assembled version includes double-shot OSA PBT keycaps and Gateron G Pro switches.
The C4 HE vendor description identifies its magnetic switch as having an adjustable actuation point and says Launcher can fine-tune actuation settings. The Q0 listing does not describe adjustable actuation.
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