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Head to head · Prices checked Oct 28, 2026

Keychron K12 vs K3 HE

Get the Keychron K12 for the 4,000 mAh battery. Get the Keychron K3 HE for hall effect and rapid trigger.

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Quick verdict

Which one should you get?

Get the

Keychron K12

Battery

Build quality in the top 20% of 60% boards under $100.

Rules this board out

  • North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
  • No ISO layout. ISO-DE, UK, and other ISO variants are not offered.
  • Compact layout only. No function row, dedicated arrow keys, or numpad.

Get the

Keychron K3 HE

Hall effect

Build quality in the top 10% of 75% boards under $150.

Rules this board out

  • Magnetic switches only. Standard MX switches will not fit.
  • Low-profile switches and keycaps only. Standard MX keycaps will not fit.
  • North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
  • No numpad.

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.

Keychron K12

Keychron K3 HE

  • Layout size

    60%

    75%

  • Hall effect (magnetic)

    No

    Yes

    Adjustable actuation helps in games and not in normal typing

  • Rapid trigger

    No

    Yes

    Faster resets help in games and not in normal typing

  • Connection

    Bluetooth, Wired

    Bluetooth, 2.4 GHz, Wired

    Wireless for several devices and wired for lower latency

  • Battery

    4,000 mAh

    2,600 mAh

    A larger battery means fewer cables during the day

KeebFinder scores

How we score
  • Keychron K12
  • Keychron K3 HE
Performance
58
92
Build quality
74
86
Productivity
69
88
Customizability
73
89
Portability
90
82

What they share

  • Hot-swappable
  • Max polling rate: 1,000 Hz
See every spec side by side

From real owners

What owners say

Ratings and quotes collected from verified store reviews, including the critical ones.

Keychron K12

4.8

192 owner reviews

Praise
“I have recently bought a Keychron K12, and I'm really satisfied with it. You can say that the build quality is high, and I love the sound of the switches.”
Artur L.Verified buyer· via Keychron
Critique
“Bought this in December 2023. The good first: - the typing experience is genuinely fantastic. The plastic case creates this resonant, almost bass-cabinet effect that makes every keystroke satisfying. - Gateron G Pro Red switches are solid as always. For pure…”
JahusVerified buyer· via Keychron

Keychron K3 HE

4.4

8 owner reviews

Praise
“I am happy with this keyboard! I needed some time to adjust my typing habits, but so far so good.”
Viacheslav M.Verified buyer· via Keychron
Critique
“please add a custom firmware file in your as the app can not recognize the keyboard and apparently doesn't have a correct firmware. the reset buttons do not work as well”
gio· via Keychron

Full specs

Keychron K12 vs K3 HE specs

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

19 of 28 specs differ

Keychron K12

Keychron K3 HE

Typing & switches

Switch options

Clicky, Linear, Tactile
Clicky, Linear, Magnetic, Tactile

Hall effect (magnetic)

No
Yes

Rapid trigger

No
Yes

Hot-swappable

Yes
Yes

Mount style

Plate Mount, Tray Mount
Tray Mount

Low profile

No
Yes

Sound dampening

No
Yes

Layout

Layout size

60%
75%

Layout standard

ANSI
ANSI, ISO, ISO-DE, ISO-ES, ISO-FR, JIS

Ergonomics

Standard
Standard

Display

None
LED

Media keys

Yes
No

Connectivity & battery

Connection

Bluetooth, Wired
Bluetooth, 2.4 GHz, Wired

Max polling rate

1,000 Hz
1,000 Hz

Battery

4,000 mAhBetter
2,600 mAh

USB-C

Yes
Yes

Build & materials

Case material

ABS, Aluminum, Plastic
ABS, Aluminum, Wood

Plate material

Plastic
Aluminum

Keycaps

ABS
PBT

Weight

—
580 g

Dimensions

—
25 x 319 x 126 mm

Typing angle

—
2°

Backlight

RGB, north-facing
RGB, north-facing

Firmware & software

QMK

No
Yes

VIA

No
Yes

N-key rollover

No
Yes

Mac & Windows

Yes
Yes

Extras

Released

2021
2026

For EU buyers

ISO layouts by store

Which stores sell ISO-DE, UK, and the other regional layouts.

Keychron K12

No ISO layout at the stores we track.

Keychron K3 HE

  • Keychron

    ISO-DE

    In stockShips to you

  • Keychron (DE)

    ISO-DE, ISO-FR, ISO-ES

    In stockDoes not ship to you

Where to buy

Compare prices

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

Prices in USD are converted to your currency and can change at any time. KeebFinder may earn a commission when you buy through these links, at no extra cost to you.

Lowest price across stores, Amazon excluded.

Keychron K124 stores

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