Compare Epomaker EK21 vs QK108 Differences Side by Side

This comparison is for users deciding between a dedicated, highly portable number pad and a fully-featured, full-size keyboard from the same brand. Both the Epomaker EK21 and QK108 share core features like triple-mode connectivity, VIA programmability, and gasket-mount construction, making the choice a matter of layout and intended use. The decision hinges on whether your priority is saving desk space and adding numeric input to a compact setup, or having all keys, a customizable screen, and extended battery life in a single unit.

Model
	83	84	Select a keyboard to compare
Rating	4.6 stars (12 reviews)	3.4 stars (5 reviews)
Purchase Options
Main differences	Has Linear switch options Available in a Numpad layout Includes a No display Equipped with a 1000 mAh battery Weighs about 200 g Sized at 29 x 138 x 93 mm Offers Yes, Rgb RGB lighting	Has Linear, Tactile, Silent switch options Available in a 100% layout Includes a Yes, LED display Equipped with a 8000 mAh battery Weighs about 1180 g Sized at 43 x 439 x 139 mm Offers Yes, Rgb, South-face, Rgb South-face RGB lighting
Score	Scores Performance: 77.2 Build Quality: 76.6 Productivity: 86.1 Customizability: 82.4 Portability: 87.8	Scores Performance: 80.7 Build Quality: 75.3 Productivity: 88.6 Customizability: 82.2 Portability: 62.2
Name	Name Epomaker EK21	Name Epomaker QK108
Release year	Release year 2025	Release year 2025
Switch Options	Switch Options Linear	Switch Options Linear, Tactile, Silent
Profile	Profile Normal Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size Numpad	Layout Size 100%
Layout Standard	Layout Standard ANSI	Layout Standard ANSI
Layout Ergonomics	Layout Ergonomics Normal	Layout Ergonomics Normal
Knob Support	Knob Support	Knob Support
Display Support	Display Support	Display Support LED
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, 2.4 GHz, Wired, Wireless	Connection Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate	Polling Rate 1000 Hz	Polling Rate 1000 Hz
Battery capacity	Battery capacity 1000 mAh	Battery capacity 8000 mAh
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 Gasket Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight Rgb	Backlight Rgb, South-face
Case Colors	Case Colors	Case Colors
Case Material	Case Material ABS	Case Material ABS
Keycaps Material	Keycaps Material PBT	Keycaps Material PBT
Dimensions	Dimensions 29 x 138 x 93 mm	Dimensions 43 x 439 x 139 mm
Weight	Weight 200g	Weight 1180g

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Pros and Trade-offs

Your primary need dictates the choice. If you require a complete, stationary typing workstation with long battery life and visual customization, the Epomaker QK108 is the comprehensive solution. If your goal is to add a programmable numpad to a minimalist or mobile setup, the Epomaker EK21 provides that functionality in a remarkably small and affordable package. Consider the QK108 as your main keyboard and the EK21 as a potent accessory for it.

Epomaker EK21

+Extremely portable at 200g with a 20-key numpad layout.
+Includes a flex-cut PCB and plate for a softer typing feel.
+Comes with a braided USB-C cable and a 2.4GHz dongle.
+Features a three-layer foam system with Poron and IXPE materials.

−Limited to linear switch options in the base configuration.
−Battery life is modest with a 1000mAh capacity.
−Lacks a full set of alphanumeric keys, requiring a separate main keyboard.

Epomaker QK108

+Massive 8000mAh battery for weeks of wireless use.
+Features a customizable mini LED screen for GIFs and system info.
+Offers a choice of linear, tactile, and silent switch types.
+Includes a two-stage adjustable kickstand for three typing angles.

−Large and heavy at 1180g and 439mm wide, limiting portability.
−More expensive than the EK21.
−The vendor description mentions the screen software can be 'iffy' according to one user review.

Which Keyboard Is Better for Your Needs?

The QK108 is the clear choice for primary desktop use across gaming, office work, programming, and content creation due to its complete key set, extensive battery, and unique screen. The EK21 wins for travel and as a secondary device, where its tiny form factor as a numpad is its defining advantage. For modding enthusiasts, both offer a nearly identical foundation of hot-swap sockets and VIA support, making them equally viable platforms for customization.

GamingEpomaker QK108

•The QK108's full layout provides dedicated macro keys without layer switching.
•Its listed 3ms wired and 5ms 2.4GHz wireless latency may offer a slight edge for competitive play.
•South-facing RGB LEDs are listed as a feature, which can improve compatibility with certain keycap profiles.

OfficeEpomaker QK108

•The 100% layout includes a full numpad and navigation cluster essential for data entry.
•A massive 8000mAh battery provides up to 229 hours of use with lighting off, according to the manufacturer.
•Includes dedicated Mac modifier keycaps and is listed as compatible with Windows, Mac, and Android.

ProgrammingEpomaker QK108

•The full ANSI layout ensures all standard punctuation and bracket keys are readily available.
•The programmable knob and VIA support allow for easy macro creation for common code snippets.
•The adjustable kickstand offers three typing angles (6, 8.5, and 11.5 degrees) for ergonomic comfort.

TravelEpomaker EK21

•The EK21 is extremely compact at 29 x 138 x 93 mm and weighs only 200g.
•Its 1000mAh battery is sufficient for a peripheral of its size.
•It can function as a standalone numpad or complement a laptop's built-in keyboard.

ModdingTie

•Both keyboards feature 5-pin hot-swappable sockets for easy switch changes.
•Both are fully programmable via VIA software.
•Both use gasket mount designs with internal foam layers (Poron/IXPE on EK21, five-layer on QK108) for sound dampening.

Content CreationEpomaker QK108

•The customizable mini LED screen can display system stats, dates, or custom GIFs.
•The programmable knob can be mapped to timeline scrubbing, brush size, or volume control.
•The full layout is advantageous for shortcut-heavy applications like video and photo editing software.