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Head to head · Prices checked Oct 21, 2026

Coolkiller Balloon84 vs Lofree Flow84Battery Life vs Typing Feel

Choose the Coolkiller Balloon84 for its superior battery and triple connectivity, or the Lofree Flow84 for its premium gasket-mounted typing feel.

CoolKiller Balloon84 Low Profile Mechanical Keyboard

Battery Life

Coolkiller Balloon84

from$129

90-day low

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Quick verdict

Which one should you get?

Get the

Coolkiller Balloon84

Battery Life

If you want

  • Substantially larger 3500mAh battery capacity.
  • Offers triple connectivity: wired, Bluetooth, and 2.4 GHz wireless.
  • Includes a 2.4G receiver and extra keycaps/switches in the box.

And can live with

  • Heavier at 870g, making it less portable.
  • Uses PC keycaps which may show shine more quickly than PBT.
  • Lacks the gasket mount design found in the Flow84.

Get the

Lofree Flow84

Typing Feel

If you want

  • Gasket mount design with IXPE and Poron foam for a softer typing feel.
  • Uses dye-sublimated PBT keycaps for better durability and texture.
  • Lighter weight (594g) and slimmer profile for better portability.

And can live with

  • Smaller 2000mAh battery.
  • Lacks a 2.4 GHz wireless mode, connecting only via Bluetooth or wired USB-C.
  • Vendor reviews mention some users found the return process difficult.

Bottom line

Your priority dictates the choice. If you need the most flexible wireless setup with a 2.4G dongle and the longest possible battery life, the Coolkiller Balloon84 is the clear pick. If you value a premium typing experience with a gasket mount, durable PBT keycaps, and a lighter, sleeker build, the Lofree Flow84 is the better investment, especially if you primarily use Bluetooth or wired connections.

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 Balloon84

Lofree Flow84

  • Connection

    Bluetooth, 2.4 GHz, Wired

    Bluetooth, Wired

  • Battery

    3,500 mAh

    2,000 mAh

  • Case material

    Aluminum, Plastic

    Aluminum

  • Switch options

    Linear

    Linear, Tactile

  • Weight

    870 g

    594 g

KeebFinder scores

How we score
  • Coolkiller Balloon84
  • Lofree Flow84
Performance
55
64
Build quality
61
67
Productivity
78
66
Customizability
63
69
Portability
83
82

What they share

  • Layout size: 75%
  • Hot-swappable
  • Low profile
See every spec side by side

Best for

What will you mostly use it for?

The Lofree Flow84 takes the lead for programming and modding due to its PBT keycaps and detailed gasket-mount construction. It's also the lighter option for travel. The Coolkiller Balloon84 is better suited for gaming and content creation, thanks to its 2.4G wireless option and substantially larger battery. For general office use, both keyboards are equally capable with their low-profile designs and multi-device Bluetooth.

For gaming

Pick the Coolkiller Balloon84

  • Includes a 2.4 GHz wireless mode for a potential latency advantage over Bluetooth-only connectivity.
  • Larger 3500mAh battery supports longer untethered gaming sessions.
  • Vendor description mentions a 'tri-connect mode' for flexible wired and wireless use.

Full specs

Coolkiller Balloon84 vs Lofree Flow84 specs

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

10 of 21 specs differ

Coolkiller Balloon84

Lofree Flow84

Typing & switches

Switch options

Linear
Linear, Tactile

Hot-swappable

Yes
Yes

Mount style

—
Gasket Mount

Low profile

Yes
Yes

Sound dampening

Yes
No

Layout

Layout size

75%
75%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Display

None
None

Media keys

Yes
Yes

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Bluetooth, Wired

Battery

3,500 mAhBetter
2,000 mAh

USB-C

Yes
Yes

Build & materials

Case material

Aluminum, Plastic
Aluminum

Keycaps

PC
PBT

Weight

870 g
594 g

Dimensions

33 x 144 x 329 mm
25 x 316 x 126 mm

Typing angle

—
4°

Backlight

White
RGB

Firmware & software

Mac & Windows

Yes
Yes

Extras

Released

2024
2023

Where to buy

Compare prices

Live prices from the stores we track, cheapest in-stock offer first.

Lowest price across stores, Amazon excluded.

  • AmazonGlobal

    Check price
    ~$129Visit
  • WhatGeekCN

    Out of stock
    $129Visit
  • LofreeHK

    In stock
    $119Visit
  • AmazonGlobal

    Check price
    Visit

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FAQ

Coolkiller Balloon84 vs Lofree Flow84: your questions

The Coolkiller Balloon84 has a significantly larger 3500mAh battery compared to the Lofree Flow84's 2000mAh. While the Flow84's manufacturer claims up to 40 hours of use, the Balloon84's larger capacity suggests it will last longer between charges.

No. According to its specifications and vendor description, the Lofree Flow84 connects only via Bluetooth 5.0 or a wired USB-C cable. It does not include a 2.4 GHz wireless dongle.

The Coolkiller Balloon84 uses keycaps made from PC (polycarbonate) material. The Lofree Flow84 uses dye-sublimated PBT (polybutylene terephthalate) keycaps, which are generally more resistant to wear and oil shine.

A gasket mount uses rubber or silicone gaskets to suspend the plate and PCB inside the case, aiming to reduce vibration and create a softer typing feel. The Lofree Flow84 features a gasket mount design with IXPE and Poron foam, while the Coolkiller Balloon84 does not specify this mounting style.

Yes, both the Coolkiller Balloon84 and the Lofree Flow84 support hot-swappable switches. This allows you to change switches without soldering.

The Lofree Flow84 is notably lighter at 594 grams and has a slimmer profile (25mm height). The Coolkiller Balloon84 weighs 870 grams, making the Flow84 the more portable option.

The Coolkiller Balloon84 features white backlighting. The Lofree Flow84 has white backlighting with adjustable levels and also includes RGB sidelighting with eight colors and three modes.

Both keyboards are compatible with low-profile mechanical switches. The Balloon84 uses Coolkiller's Ice-Blade MINI switches. The Flow84 uses Kailh full POM switches and is also listed as compatible with separately purchased Wizard (clicky) switches.

According to the vendor listing, the Balloon84 includes the keyboard, a USB-C cable, a switch puller, a 2.4G receiver, a user manual, five replacement Windows keycaps, and four replacement switches.

The Lofree product page lists the box contents as the Flow84 keyboard, a USB-C cable, and a user guide. It does not list a switch puller or extra switches.

Yes, both manufacturers state Mac support. The Coolkiller Balloon84 description mentions a one-click switch for MAC/WIN and includes Mac multimedia key restoration. The Lofree Flow84 lists macOS and iPadOS compatibility in its tech specs.

Both have sound-dampening features, but their approaches differ. The Balloon84 vendor mentions silicone pads for noise reduction. The Flow84 uses a gasket mount with specific IXPE and Poron foams to isolate switches and reduce vibrations, which is a design often associated with a more controlled acoustic profile.

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