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Head to head · Prices checked Oct 21, 2026

Nuphy Air75 V2 vs Keychron K3

Get the Nuphy Air75 V2 for the 4,000 mAh battery and qmk.

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.

Nuphy Air75 V2

Keychron K3

  • Connection

    Bluetooth, 2.4 GHz, Wired

    Bluetooth, Wired

  • Battery

    4,000 mAh

    1,550 mAh

  • Switch options

    Linear, Low-profile Mechanical, Tactile

    Clicky, Linear, Tactile

  • QMK

    Yes

    No

  • VIA

    Yes

    No

KeebFinder scores

How we score
  • Nuphy Air75 V2
  • Keychron K3
Performance
81
64
Build quality
80
61
Productivity
89
65
Customizability
94
69
Portability
79
80

What they share

  • Layout size: 75%
  • Hot-swappable
  • Low profile
  • Case material: ABS, Aluminum
See every spec side by side

Full specs

Nuphy Air75 V2 vs Keychron K3 specs

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

12 of 26 specs differ

Nuphy Air75 V2

Keychron K3

Typing & switches

Switch options

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

Hot-swappable

Yes
Yes

Mount style

—
Plate Mount

Low profile

Yes
Yes

Sound dampening

Yes
No

Layout

Layout size

75%
75%

Layout standard

ANSI
ANSI, ISO, ISO-FR

Ergonomics

Standard
Standard

Display

None
None

Media keys

Yes
Yes

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Bluetooth, Wired

Max polling rate

1,000 Hz
—

Battery

4,000 mAhBetter
1,550 mAh

USB-C

Yes
Yes

Build & materials

Case material

ABS, Aluminum
ABS, Aluminum

Plate material

Aluminum
Plastic

Keycaps

PBT
ABS, PBT

Weight

598 g
—

Dimensions

14 x 316 x 133 mm
—

Typing angle

9°
6°

Backlight

RGB, south-facing
RGB, north-facing

Firmware & software

QMK

Yes
No

VIA

Yes
No

N-key rollover

Yes
No

Mac & Windows

Yes
Yes

Extras

Released

2023
2023

Where to buy

Compare prices

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

Lowest price across stores, Amazon excluded.

  • NuphyUS

    In stock
    $75Visit
  • AmazonGlobal

    Check price
    ~$75Visit
  • ktechsSG

    Out of stock
    $160Visit
Keychron K33 stores
  • Keychron (DE)DE

    In stock
    $105Visit
  • AmazonGlobal

    Check price
    Visit
  • MKUS

    Out of stock
    $94Visit

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.

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