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Head to head · Prices checked Nov 7, 2026

Nuphy Air75 V3 Moonbow Edition vs Keychron K1 Ultra

Get the Nuphy Air75 V3 Moonbow Edition for the 4,000 mAh battery. Get the Keychron K1 Ultra for the 8,000 Hz polling rate.

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Quick verdict

Which one should you get?

Get the

Nuphy Air75 V3 Moonbow Edition

Battery

Build quality in the top 35% 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.
  • No numpad.

Get the

Keychron K1 Ultra

polling rate

Build quality in the top 25% of 80% 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.
  • No ISO layout. ISO-DE, UK, and other ISO variants are not offered.
  • 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.

Nuphy Air75 V3 Moonbow Edition

Keychron K1 Ultra

  • Layout size

    75%

    80%

  • Battery

    4,000 mAh

    2,600 mAh

    A larger battery means fewer cables during the day

  • Max polling rate

    1,000 Hz

    8,000 Hz

    Higher polling helps competitive FPS and does nothing for typing

  • Case material

    ABS, Aluminum

    ABS, Aluminum, Metal, Wood

  • Switch options

    Low-profile 3.0

    Clicky, Linear, Tactile

KeebFinder scores

How we score
  • Nuphy Air75 V3 Moonbow Edition
  • Keychron K1 Ultra
Performance
78
89
Build quality
74
70
Productivity
84
84
Customizability
79
75
Portability
82
77

What they share

  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Low profile
  • Knob
  • Sound dampening
  • Keycaps: PBT
See every spec side by side

Full specs

Nuphy Air75 V3 Moonbow Edition vs Keychron K1 Ultra specs

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

11 of 25 specs differ

Nuphy Air75 V3 Moonbow Edition

Keychron K1 Ultra

Typing & switches

Switch options

Low-profile 3.0
Clicky, Linear, Tactile

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Plate Mount

Low profile

Yes
Yes

Sound dampening

Yes
Yes

Layout

Layout size

75%
80%

Layout standard

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

Ergonomics

Standard
Standard

Knob

Yes
Yes

Display

LED
None

Media keys

Yes
Yes

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Bluetooth, 2.4 GHz, Wired

Max polling rate

1,000 Hz
8,000 HzBetter

Battery

4,000 mAhBetter
2,600 mAh

USB-C

Yes
Yes

Build & materials

Case material

ABS, Aluminum
ABS, Aluminum, Metal, Wood

Plate material

Polycarbonate
Aluminum

Keycaps

PBT
PBT

Weight

724 g
628.9 g

Dimensions

13 x 319 x 129 mm
20 x 359 x 128 mm

Typing angle

10°
—

Backlight

RGB, north-facing
RGB, north-facing

Firmware & software

N-key rollover

Yes
Yes

Mac & Windows

Yes
Yes

Extras

Released

2026
2026

For EU buyers

ISO layouts by store

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

Nuphy Air75 V3 Moonbow Edition

Listed on the product, not split by store: ISO-DE, ISO-UK, ISO-FR.

Keychron K1 Ultra

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.

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