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Head to head · Prices checked Oct 21, 2026

KBDFans Agar Mini vs zFrontier Zan 40Pre-Built vs Custom Kit

Choose the Agar Mini for a complete, portable package with a unique design, or the Zan 40 for deep firmware customization and layout flexibility.

Quick verdict

Which one should you get?

Get the

KBDFans Agar Mini

Pre-Built

If you want

  • Sold as a complete pre-built unit with keycaps and stabilizers included.
  • Includes a carrying pouch and claims up to 3-month battery life.
  • Features a proprietary magnetic pogo-pin daughterboard connection for reliability.

And can live with

  • Uses a less common 3U+3U or 6U spacebar layout, limiting keycap set compatibility.
  • The internal weight must be self-installed and removed for shipping, per vendor instructions.
  • Relies on ZMK firmware which, while optimized, may have a different workflow than QMK/VIAL.

Get the

zFrontier Zan 40

Custom Kit

If you want

  • Explicitly supports VIAL firmware for easy, graphical key remapping.
  • Features a split spacebar layout for increased programming flexibility.
  • Sold as a configurable kit with choice of case color, PCB (wired/wireless), and decorative backplate.

And can live with

  • Sold as a DIY kit or barebones, requiring the user to source switches and keycaps separately.
  • Availability may be limited as the listing showed a sold-out status.
  • The vendor description does not specify battery capacity or estimated battery life for wireless models.

Bottom line

Your priority should guide this choice. If you want a distinctive, portable keyboard that arrives ready to type with a focus on design and included accessories, the KBDFans Agar Mini is the clear pick. If your goal is maximum customization, from firmware with VIAL support to the physical layout with a split spacebar, and you enjoy assembling a kit, the zFrontier Zan 40 is the more flexible platform.

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.

KBDFans Agar Mini

zFrontier Zan 40

  • Ergonomics

    Standard

    Split Spacebar

  • Case material

    Aluminum, Brass, Polycarbonate

    Aluminum

  • QMK

    Yes

    No

  • VIA

    Yes

    No

  • Sound dampening

    Yes

    No

KeebFinder scores

How we score
  • KBDFans Agar Mini
  • zFrontier Zan 40
Performance
63
47
Build quality
94
74
Productivity
94
60
Customizability
94
76
Portability
87
80

What they share

  • Layout size: 40%
  • Connection: Bluetooth, Wired
  • Hot-swappable
See every spec side by side

Best for

What will you mostly use it for?

The Zan 40 wins for programming and modding due to its VIAL support and kit-based, customizable nature. The Agar Mini is better for office use and travel, offering a complete package with a carrying case and long claimed battery life. For gaming and content creation, the decision is a tie, hinging on personal preference for layout and programmability over the included accessories of the Agar Mini.

For gaming

It's a tie

  • Both are 40% layouts requiring heavy layer use for gaming keys.
  • Both offer hot-swappable PCBs for switch experimentation.
  • Neither has a stated high polling rate or latency advantage for competitive gaming.

Full specs

KBDFans Agar Mini vs zFrontier Zan 40 specs

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

9 of 24 specs differ

KBDFans Agar Mini

zFrontier Zan 40

Typing & switches

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
—

Sound dampening

Yes
No

Screw-in stabilizers

Yes
Yes

Layout

Layout size

40%
40%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Split Spacebar

Display

None
None

Connectivity & battery

Connection

Bluetooth, Wired
Bluetooth, Wired

Max polling rate

1,000 Hz
—

Battery

1,000 mAh
—

USB-C

Yes
No

Build & materials

Case material

Aluminum, Brass, Polycarbonate
Aluminum

Plate material

Aluminum, CarbonFiber, FR4, Polycarbonate
FR4

Weight

700 g
—

Dimensions

40 x 250 x 120 mm
—

Typing angle

9°
—

Backlight

None
None

Firmware & software

QMK

Yes
No

VIA

Yes
No

VIAL

Yes
Yes

N-key rollover

Yes
No

Mac & Windows

Yes
No

Extras

Released

2025
2025

Where to buy

Compare prices

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

Lowest price across stores, Amazon excluded.

  • KBDfansCN

    In stock
    $74Visit
  • AmazonGlobal

    Check price
    ~$160Visit
  • MonacoKeysDE

    Out of stock
    $215Visit
  • AmazonGlobal

    Check price
    ~$154Visit
  • zFrontierHK

    Out of stock
    $154Visit

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.

FAQ

KBDFans Agar Mini vs zFrontier Zan 40: your questions

The KBDFans Agar Mini is easier for beginners. It is sold as a pre-built unit with keycaps, switches, and stabilizers already included, requiring minimal assembly. The zFrontier Zan 40 is a DIY kit that requires you to source and install your own switches and keycaps.

The zFrontier Zan 40 has an advantage in software due to its explicit support for VIAL. VIAL allows for real-time, graphical key remapping without needing to reflash the firmware. The Agar Mini uses a customized version of ZMK, which is powerful but may involve a different configuration process.

Yes, both keyboards offer wireless connectivity. The Agar Mini is a dual-mode (Bluetooth) kit powered by ZMK. The Zan 40 offers a 'Dual Mode' PCB option that includes a battery for Bluetooth and wired use.

The zFrontier Zan 40 features an isolated spacebar that supports a split layout. This means you can use two separate 3u keycaps in place of a standard 6u spacebar, programming each half as a different key or layer modifier for greater efficiency.

Yes, the KBDFans Agar Mini includes a 300mAh battery. The vendor claims that through optimization of the ZMK firmware, this battery can last up to three months on a single charge.

The KBDFans Agar Mini has stronger portability features. Its vendor specifically markets it for travel and includes a bespoke storage pouch for carrying. It also highlights an ultra-low front height designed for comfort without an external wrist rest.

Yes, both kits include screw-in stabilizers. The Agar Mini includes stabilizers with 3u wires for its unique layout. The Zan 40 includes stabilizers and wires for both a 6u spacebar and split 3u spacebars.

The Agar Mini uses a proprietary magnetic pogo-pin system to connect its daughterboard, which handles the USB port. This cable-free design, called a 'Serpentine Adaptive Connector,' is intended to eliminate issues with traditional ribbon cables wearing out over time.

Both keyboards offer color options, but at the point of purchase. The Agar Mini offers case colors like anodized black, gray, purple, silver, red, e-white, PC, and brass. The Zan 40 offers powder-coated colors like yellow, beige, light blue, lime, peach, and pink-lavender.

The KBDFans Agar Mini offers more plate material choices, including Polycarbonate, FR4, Aluminum, and Carbon Fiber. The zFrontier Zan 40 comes with an FR4 plate but offers numerous decorative backplate options, such as PVD stainless steel and titanium designs with various artworks.

Yes, the zFrontier Zan 40 PCB is listed as hot-swappable. This allows you to change MX-style mechanical switches without soldering, which is a key feature for customization.

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