Compare KBDFans Agar Mini vs zFrontier Zan 40 Differences Side by Side

This comparison is for enthusiasts deciding between two distinct approaches to the 40% form factor. The choice is difficult because both offer wireless connectivity and hot-swappable PCBs, but diverge in their core philosophy. The Agar Mini is a complete, pre-built experience focused on ergonomic design and portability. The Zan 40 is a customizable kit centered on firmware support and a split spacebar layout, offering more control over the final build.

Model
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Rating	0.0 stars (0 reviews)	0.0 stars (0 reviews)
Purchase Options
Main differences	Offers Normal ergonomics Uses a Gasket Mount mounting style Supports Bluetooth, Wireless connectivity Equipped with a 300 mAh battery Made with a Polycarbonate, Brass case	Offers Split Spacebar ergonomics Supports VIAL configuration Supports Bluetooth, Wired, Wireless connectivity Made with a Aluminum case
Score	Scores Performance: 41.7 Build Quality: 73.8 Productivity: 47.9 Customizability: 50 Portability: 79.7	Scores Performance: 47.3 Build Quality: 74.2 Productivity: 60 Customizability: 76.6 Portability: 80
Name	Name KBDFans Agar Mini	Name zFrontier Zan 40
Release year	Release year 2025	Release year 2025
Switch Options	Switch Options -	Switch Options -
Profile	Profile Normal Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 40%	Layout Size 40%
Layout Standard	Layout Standard ANSI	Layout Standard ANSI
Layout Ergonomics	Layout Ergonomics Normal	Layout Ergonomics Split Spacebar
Knob Support	Knob Support	Knob Support
Display Support	Display Support	Display Support
Mac/Win Support	Mac/Win Support	Mac/Win Support
Multi-Media Keys	Multi-Media Keys	Multi-Media Keys
USB-C	USB-C	USB-C
USB passthrough	USB passthrough	USB passthrough
Connection	Connection Bluetooth, Wireless	Connection Bluetooth, Wired, Wireless
Polling Rate	Polling Rate -	Polling Rate -
Battery capacity	Battery capacity 300 mAh	Battery capacity -
Hall Effect Support	Hall Effect Support	Hall Effect Support
QMK Support	QMK Support	QMK Support
VIA Support	VIA Support	VIA Support
VIAL Support	VIAL Support	VIAL Support
N-Key Rollover	N-Key Rollover	N-Key Rollover
Rapid Trigger	Rapid Trigger	Rapid Trigger
Mount Style	Mount Style Gasket Mount	Mount Style -
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight	Backlight
Case Colors	Case Colors	Case Colors
Case Material	Case Material Polycarbonate, Brass	Case Material Aluminum
Keycaps Material	Keycaps Material -	Keycaps Material -
Dimensions	Dimensions -	Dimensions -
Weight	Weight -	Weight -

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Pros and Trade-offs

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.

KBDFans Agar Mini

+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.
+Offers a unique curved polycarbonate or brass case design with a 9° typing angle.
+Includes a hotswap foam kit and multiple plate material options (PC, FR4, Aluminum, Carbon Fiber).

−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.

zFrontier Zan 40

+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.
+Includes stabilizers and wires for both 6u and split 3u configurations.

−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.

Which Keyboard Is Better for Your Needs?

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.

GamingTie

•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.

OfficeKBDFans Agar Mini

•The Agar Mini is sold as a pre-built unit with keycaps included, ready to use.
•Its vendor claims up to 3 months of battery life from its 300mAh cell.
•It includes a carrying case for easy transport between locations.

ProgrammingzFrontier Zan 40

•The Zan 40 explicitly supports VIAL firmware for extensive, real-time key remapping.
•Its split spacebar layout can be programmed as two separate keys for layer access.
•The kit-based nature allows for precise switch selection for typing feel.

TravelKBDFans Agar Mini

•The Agar Mini includes a bespoke storage pouch according to its vendor.
•Its vendor highlights an ultra-low front height for ergonomic use without a wrist rest.
•It is a pre-assembled unit, reducing the risk of parts coming loose during travel.

ModdingzFrontier Zan 40

•The Zan 40 is sold as a DIY kit, inviting assembly and part selection.
•It offers multiple backplate options including PVD stainless steel and titanium.
•VIAL support provides deep, accessible firmware customization without reflashing.

Content CreationTie

•Both lack dedicated media keys, requiring layer programming for shortcuts.
•Their small size saves desk space for graphics tablets or other peripherals.
•The choice depends on whether pre-built convenience or custom key mapping is more valuable.