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Head to head · Prices checked Nov 11, 2026

Azio Cascade Slim vs Coolkiller Balloon84

Get the Azio Cascade Slim for the 4,000 mAh battery.

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Quick verdict

Which one should you get?

Get the

Azio Cascade Slim

Battery

Build quality in the top 30% of 75% boards under $100.

Rules this board out

  • Low-profile switches and keycaps only. Standard MX keycaps will not fit.

Get the

Coolkiller Balloon84

Build quality in the bottom 40% of 75% boards under $150.

Rules this board out

  • 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.

Azio Cascade Slim

Coolkiller Balloon84

  • Battery

    4,000 mAh

    3,500 mAh

    A larger battery means fewer cables during the day

  • Case material

    Aluminum

    Aluminum, Plastic

  • Switch options

    Clicky, Linear, Tactile

    Linear

  • Weight

    1,111 g

    870 g

    Heavier boards stay planted and lighter ones travel

  • Keycaps

    ABS

    PC

KeebFinder scores

How we score
  • Azio Cascade Slim
  • Coolkiller Balloon84
Performance
75
54
Build quality
74
61
Productivity
87
78
Customizability
79
63
Portability
80
83

What they share

  • Layout size: 75%
  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Low profile
  • Sound dampening
See every spec side by side

Full specs

Azio Cascade Slim vs Coolkiller Balloon84 specs

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

11 of 22 specs differ

Azio Cascade Slim

Coolkiller Balloon84

Typing & switches

Switch options

Clicky, Linear, Tactile
Linear

Hot-swappable

Yes
Yes

Low profile

Yes
Yes

Sound dampening

Yes
Yes

Screw-in stabilizers

Yes
No

Layout

Layout size

75%
75%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Display

None
None

Media keys

No
Yes

Connectivity & battery

Connection

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

Battery

4,000 mAhBetter
3,500 mAh

USB-C

Yes
Yes

Build & materials

Case material

Aluminum
Aluminum, Plastic

Plate material

Aluminum
—

Keycaps

ABS
PC

Weight

1,111 g
870 g

Dimensions

41 x 126 x 27 mm
33 x 144 x 329 mm

Backlight

RGB
White

Firmware & software

N-key rollover

Yes
No

Mac & Windows

Yes
Yes

Extras

Released

2022
2024

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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