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Head to head · Prices checked Nov 2, 2026

Coolkiller Spring vs Keychron K7

Get the Coolkiller Spring for the 3,500 mAh battery.

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Quick verdict

Which one should you get?

Get the

Coolkiller Spring

Battery

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.

Get the

Keychron K7

Build quality in the top 50% of 65% boards under $100.

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.

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

Keychron K7

  • Connection

    Bluetooth, 2.4 GHz, Wired

    Bluetooth, Wired

    Wireless for several devices and wired for lower latency

  • Battery

    3,500 mAh

    1,550 mAh

    A larger battery means fewer cables during the day

  • Case material

    Aluminum

    Aluminum, Plastic

  • Switch options

    Linear

    Clicky, Linear, Tactile

  • Display

    Yes

    None

    A case display rather than a typing feature

KeebFinder scores

How we score
  • Coolkiller Spring
  • Keychron K7
Performance
59
55
Build quality
64
66
Productivity
61
59
Customizability
71
67
Portability
90
86

What they share

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

Full specs

Coolkiller Spring vs Keychron K7 specs

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

11 of 19 specs differ

Coolkiller Spring

Keychron K7

Typing & switches

Switch options

Linear
Clicky, Linear, Tactile

Hot-swappable

Yes
Yes

Mount style

—
Tray Mount

Low profile

Yes
Yes

Layout

Layout size

65%
65%

Layout standard

ANSI
ANSI, ISO, ISO-DE, ISO-Nordic, ISO-UK, JIS

Ergonomics

Standard
Standard

Display

Yes
None

Media keys

No
Yes

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Bluetooth, Wired

Battery

3,500 mAhBetter
1,550 mAh

USB-C

Yes
Yes

Build & materials

Case material

Aluminum
Aluminum, Plastic

Keycaps

PBT
ABS

Weight

1,500 g
348.7 g

Dimensions

—
22 x 307 x 98 mm

Backlight

RGB
RGB, north-facing

Firmware & software

Mac & Windows

Yes
Yes

Extras

Released

2023
2021

For EU buyers

ISO layouts by store

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

Coolkiller Spring

No ISO layout at the stores we track.

Keychron K7

  • Keychron

    ISO-UK

    Out of stockShips to you

  • Keychron

    ISO-DE

    Out of stockShips to you

  • Keychron

    ISO-Nordic

    Out of stockShips to you

  • Keychron (DE)

    ISO-DE

    Out of stockDoes not ship to you

  • Keychron (DE)

    ISO-UK

    Out of stockDoes not ship 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 K74 stores

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