Head to head · Prices checked Oct 28, 2026

Keychron K3 vs Nuphy Air75 V3

Get the Nuphy Air75 V3 for the 4,000 mAh battery.

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Keychron K3

from$105at Keychron (DE)

Compare 3 stores

Battery

Nuphy Air75 V3

from$135at Input Gear

Compare 4 stores

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.
Missing ISO-DE, ISO-UK. The other board is sold in those layouts.

$105 at Keychron (DE)

Get the

Nuphy Air75 V3

Battery

Build quality in the top 5% 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.
South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.

$135 at Input Gear

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 V3

Connection
Bluetooth, Wired
Bluetooth, 2.4 GHz, Wired
Wireless for several devices and wired for lower latency
Battery
1,550 mAh
4,000 mAh
A larger battery means fewer cables during the day
Case material
ABS, Aluminum
ABS, Aluminum, Plastic, Polycarbonate
Switch options
Clicky, Linear, Tactile
Clicky, Linear, Low-profile 3.0, Mechanical, Tactile
Mount style
Plate Mount
Gasket Mount

KeebFinder scores

How we score

Keychron K3
Nuphy Air75 V3

Performance: 64
82
Build quality: 61
88
Productivity: 66
97
Customizability: 69
98
Portability: 80
82

What they share

Layout size: 75%
Hot-swappable
Low profile

See every spec side by side

Full specs

Keychron K3 vs Nuphy Air75 V3 specs

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

17 of 28 specs differ

Spec

Keychron K3

Nuphy Air75 V3

Typing & switches

Switch options

Clicky, Linear, Tactile

Clicky, Linear, Low-profile 3.0, Mechanical, Tactile

Hot-swappable

Yes

Mount style

Plate Mount

Gasket Mount

Low profile

Yes

Sound dampening

Yes

Screw-in stabilizers

Yes

Layout

Layout size

75%

Layout standard

ANSI, ISO, ISO-FR

ANSI, ISO, ISO-DE, ISO-FR, ISO-UK, JIS

Ergonomics

Standard

Knob

Yes

Display

None

Media keys

Yes

Connectivity & battery

Connection

Bluetooth, Wired

Bluetooth, 2.4 GHz, Wired

Max polling rate

—

1,000 Hz

Battery

1,550 mAh

4,000 mAhBetter

USB-C

Yes

Build & materials

Case material

ABS, Aluminum

ABS, Aluminum, Plastic, Polycarbonate

Plate material

Plastic

Aluminum, Polycarbonate

Keycaps

ABS, PBT

PBT

Weight

—

750 g

Dimensions

—

13 x 319 x 129 mm

Typing angle

6°

10°, 5°

Backlight

RGB, north-facing

RGB, south-facing

Firmware & software

QMK

Yes

VIA

Yes

N-key rollover

Yes

Mac & Windows

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 V3

Input Gear
ISO-DE
In stockShips to you
Input Gear
ISO-FR
In stockShips to you
Input Gear
ISO-DE
In stockShips 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 K33 stores