Head to head · Prices checked Nov 8, 2026

HMX GB40 vs Keychron C0 HE

Get the Keychron C0 HE for hall effect.

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HMX GB40

No reviews

from$130at MK

Compare 2 stores

Hall effect

Keychron C0 HE

4.7 (6)4.7 · 6 reviews

from$85at Keychron (DE)

Compare 3 stores

Quick verdict

Which one should you get?

Get the

HMX GB40

Build quality in the top 50% of 40% boards under $150.

Rules this board out

South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.

$130 at MK

Get the

Keychron C0 HE

Hall effect

Build quality in the bottom 40% of 40% boards under $150.

Rules this board out

Magnetic switches only. Standard MX switches will not fit.
North-facing LEDs. Cherry-profile keycaps can hit the switch housing.

$85 at Keychron (DE)

What actually differs

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.

HMX GB40

Keychron C0 HE

Hall effect (magnetic)
No
Yes
Adjustable actuation helps in games and not in normal typing
Connection
Bluetooth, Wired
Wired
Wireless for several devices and wired for lower latency
Case material
Aluminum
Plastic
Mount style
Gasket Mount
Tray Mount
Keycaps
ABS, PBT
ABS

KeebFinder scores

How we score

HMX GB40
Keychron C0 HE

Performance: 58
85
Build quality: 69
57
Productivity: 57
58
Customizability: 57
59
Portability: 85
67

What they share

Layout size: 40%
Hot-swappable
Sound dampening

See every spec side by side

Full specs

HMX GB40 vs Keychron C0 HE specs

Every tracked spec, side by side. Rows marked with a dot differ between the boards.

9 of 21 specs differ

Spec

HMX GB40

Keychron C0 HE

Typing & switches

Switch options

—

Clicky, Linear, Magnetic, Tactile

Hall effect (magnetic)

Yes

Hot-swappable

Yes

Mount style

Gasket Mount

Tray Mount

Sound dampening

Yes

Layout

Layout size

40%

Layout standard

ANSI

Ergonomics

Standard

Display

None

Connectivity & battery

Connection

Bluetooth, Wired

Wired

Max polling rate

—

8,000 Hz

USB-C

Yes

Build & materials

Case material

Aluminum

Plastic

Plate material

—

Aluminum

Keycaps

ABS, PBT

ABS

Weight

—

450 g

Dimensions

—

39 x 149 x 245 mm

Typing angle

6°

—

Backlight

RGB, south-facing

RGB, north-facing

Firmware & software

Mac & Windows

Yes

Extras

Released

2025

2026

Where to buy

Compare prices

Live prices from the stores we track, cheapest in-stock offer first.

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Lowest price across stores, Amazon excluded.

HMX GB402 stores