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Head to head · Prices checked Nov 2, 2026

Coolkiller Spring vs Mistel Air One

Get the Coolkiller Spring for hot-swappable.

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Quick verdict

Which one should you get?

Get the

Coolkiller Spring

Hot-swappable

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.

Get the

Mistel Air One

Build quality in the bottom 45% of 65% boards under $150.

Rules this board out

  • Switches are soldered. Swapping them means soldering.
  • Low-profile switches and keycaps only. Standard MX keycaps will not fit.

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.

Coolkiller Spring

Mistel Air One

  • Connection

    Bluetooth, 2.4 GHz, Wired

    Wired

    Wireless for several devices and wired for lower latency

  • Hot-swappable

    Yes

    No

    Switch changes without soldering

  • Case material

    Aluminum

    ABS, Aluminum

  • Switch options

    Linear

    Clicky, Tactile

  • Display

    Yes

    None

    A case display rather than a typing feature

KeebFinder scores

How we score
  • Coolkiller Spring
  • Mistel Air One
Performance
59
68
Build quality
64
59
Productivity
61
63
Customizability
71
55
Portability
90
70

What they share

  • Layout size: 65%
  • Low profile
See every spec side by side

Full specs

Coolkiller Spring vs Mistel Air One specs

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

10 of 23 specs differ

Coolkiller Spring

Mistel Air One

Typing & switches

Switch options

Linear
Clicky, Tactile

Hot-swappable

Yes
No

Mount style

—
Plate Mount

Low profile

Yes
Yes

Sound dampening

No
Yes

Layout

Layout size

65%
65%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Display

Yes
None

Media keys

No
Yes

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Wired

Max polling rate

—
1,000 Hz

Battery

3,500 mAh
Wired only

USB-C

Yes
Yes

Build & materials

Case material

Aluminum
ABS, Aluminum

Plate material

—
Plastic

Keycaps

PBT
ABS

Weight

1,500 g
295 g

Dimensions

—
13 x 100 x 308 mm

Backlight

RGB
RGB

Firmware & software

N-key rollover

No
Yes

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.

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Lowest price across stores, Amazon excluded.

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