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

Head to head · Prices checked Oct 28, 2026

Keychron K3 vs Nuphy Air75 HE

Get the Nuphy Air75 HE for hall effect and rapid trigger.

KeebFinder may earn a commission when you buy through these links, at no extra cost to you.

Quick verdict

Which one should you get?

Get the

Keychron K3

Build quality in the bottom 40% of 75% boards under $150.

Rules this board out

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

Get the

Nuphy Air75 HE

Hall effect

Build quality in the bottom 45% 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.
  • South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
  • No ISO layout. ISO-DE, UK, and other ISO variants are not offered.

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 K3

Nuphy Air75 HE

  • 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

    Wired

    Wireless for several devices and wired for lower latency

  • Case material

    ABS, Aluminum

    Aluminum, Plastic

  • Switch options

    Clicky, Linear, Tactile

    Magnetic

KeebFinder scores

How we score
  • Keychron K3
  • Nuphy Air75 HE
Performance
64
98
Build quality
61
63
Productivity
66
76
Customizability
69
69
Portability
80
66

What they share

  • Layout size: 75%
  • Hot-swappable
  • Low profile
  • Mount style: Plate Mount
See every spec side by side

Full specs

Keychron K3 vs Nuphy Air75 HE specs

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

13 of 26 specs differ

Keychron K3

Nuphy Air75 HE

Typing & switches

Switch options

Clicky, Linear, Tactile
Magnetic

Hall effect (magnetic)

No
Yes

Rapid trigger

No
Yes

Hot-swappable

Yes
Yes

Mount style

Plate Mount
Plate Mount

Low profile

Yes
Yes

Sound dampening

No
Yes

Layout

Layout size

75%
75%

Layout standard

ANSI, ISO, ISO-FR
ANSI

Ergonomics

Standard
Standard

Display

None
None

Media keys

Yes
Yes

Connectivity & battery

Connection

Bluetooth, Wired
Wired

Max polling rate

—
8,000 Hz

Battery

1,550 mAh
Wired only

USB-C

Yes
Yes

Build & materials

Case material

ABS, Aluminum
Aluminum, Plastic

Plate material

Plastic
Aluminum

Keycaps

ABS, PBT
PBT, PC

Weight

—
702 g

Dimensions

—
18 x 316 x 133 mm

Typing angle

6°
3°

Backlight

RGB, north-facing
RGB, south-facing

Firmware & software

N-key rollover

No
Yes

Mac & Windows

Yes
Yes

Extras

Released

2023
2024

For EU buyers

ISO layouts by store

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

Keychron K3

  • Keychron (DE)

    ISO-FR

    In stockDoes not ship to you

Nuphy Air75 HE

No ISO layout at the stores we track.

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 K33 stores

Still torn?

Answer a few quick questions and the keyboard finder ranks 2,000+ boards by how you will actually use yours.