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Head to head · Prices checked Nov 2, 2026

Nuphy Air75 V3 Moonbow Edition vs Coolkiller Spring

Get the Nuphy Air75 V3 Moonbow Edition for the 4,000 mAh battery and knob.

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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

Coolkiller Spring

Build quality in the bottom 50% of 65% boards under $200.

Rules this board out

  • Low-profile switches and keycaps only. Standard MX keycaps will not fit.
  • No ISO layout. ISO-DE, UK, and other ISO variants are not offered.
  • 65% layout. No function row and 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

Coolkiller Spring

  • Layout size

    75%

    65%

  • Battery

    4,000 mAh

    3,500 mAh

    A larger battery means fewer cables during the day

  • Case material

    ABS, Aluminum

    Aluminum

  • Switch options

    Low-profile 3.0

    Linear

  • Knob

    Yes

    No

KeebFinder scores

How we score
  • Nuphy Air75 V3 Moonbow Edition
  • Coolkiller Spring
Performance
78
59
Build quality
74
64
Productivity
84
61
Customizability
78
71
Portability
82
90

What they share

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

Full specs

Nuphy Air75 V3 Moonbow Edition vs Coolkiller Spring specs

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

13 of 25 specs differ

Nuphy Air75 V3 Moonbow Edition

Coolkiller Spring

Typing & switches

Switch options

Low-profile 3.0
Linear

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
—

Low profile

Yes
Yes

Sound dampening

Yes
No

Layout

Layout size

75%
65%

Layout standard

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

Ergonomics

Standard
Standard

Knob

Yes
No

Display

LED
Yes

Media keys

Yes
No

Connectivity & battery

Connection

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

Max polling rate

1,000 Hz
—

Battery

4,000 mAhBetter
3,500 mAh

USB-C

Yes
Yes

Build & materials

Case material

ABS, Aluminum
Aluminum

Plate material

Polycarbonate
—

Keycaps

PBT
PBT

Weight

724 g
1,500 g

Dimensions

13 x 319 x 129 mm
—

Typing angle

10°
—

Backlight

RGB, north-facing
RGB

Firmware & software

N-key rollover

Yes
No

Mac & Windows

Yes
Yes

Extras

Released

2026
2023

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.

Coolkiller Spring

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.

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Lowest price across stores, Amazon excluded.

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