Compare Epomaker EK21 vs RT100 Pro Differences Side by Side

This comparison is for users deciding between two very different Epomaker products: a dedicated numpad and a full-sized keyboard. The choice is difficult because both offer premium features like gasket mounts, hot-swap sockets, and triple-mode connectivity, but serve fundamentally different purposes. The EK21 is an accessory to augment a compact setup, while the RT100 Pro is a primary input device with a screen and extensive layout. Your decision hinges on whether you need a complete keyboard or a supplementary number pad.

Model
	84	74	Select a keyboard to compare
Rating	4.6 stars (12 reviews)	4.0 stars (6 reviews)
Purchase Options
Main differences	Released in 2025 Has Linear switch options Available in a Numpad layout Includes a No display Supports VIA configuration Features N-key rollover Equipped with a 1000 mAh battery Weighs about 200 g Sized at 29 x 138 x 93 mm Made with a ABS case Offers Yes, Rgb RGB lighting	Released in 2026 Has Linear, Silent switch options Available in a 96% layout Includes a Yes, TFT display Equipped with a 5000 mAh battery Weighs about 1300 g Sized at 45 x 433 x 142 mm Made with a ABS, Plastic case Offers Yes, Rgb, South-face, Rgb South-face RGB lighting
Score	Scores Performance: 77.4 Build Quality: 76.8 Productivity: 86.7 Customizability: 82.6 Portability: 87.8	Scores Performance: 68.4 Build Quality: 66.4 Productivity: 83.9 Customizability: 74.7 Portability: 56.3
Name	Name Epomaker EK21	Name Epomaker RT100 Pro
Release year	Release year 2025	Release year 2026
Switch Options	Switch Options Linear	Switch Options Linear, Silent
Profile	Profile Normal Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size Numpad	Layout Size 96%
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 TFT
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 5000 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, Plastic
Keycaps Material	Keycaps Material PBT	Keycaps Material PBT
Dimensions	Dimensions 29 x 138 x 93 mm	Dimensions 45 x 433 x 142 mm
Weight	Weight 200g	Weight 1300g

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Pros and Trade-offs

Your choice is defined by form factor. The Epomaker EK21 is a specialized, highly portable accessory for users who already have a compact main keyboard but need a numpad. The Epomaker RT100 Pro is a complete, feature-packed primary keyboard for users who want a full layout, a customizable screen, and maximum battery life in a stationary setup. Prioritize the EK21 for augmentation and portability, or the RT100 Pro for a standalone daily driver.

Epomaker EK21

+Extremely portable at 200g with a compact 20-key numpad layout.
+Supports VIA software for open-source, deep programmability.
+Features a flex-cut PCB and plate for a more flexible gasket mount feel.
+Includes three layers of sound-dampening foam (Poron and IXPE).
+Comes with an aluminum alloy knob for volume or custom controls.

−Is only a numpad, requiring a separate main keyboard for full functionality.
−Smaller 1000mAh battery offers less wireless runtime than full-sized boards.
−Lacks a display or extra macro keys beyond its core 20-key layout.

Epomaker RT100 Pro

+Comprehensive 96% layout with numpad, arrow keys, and function row.
+Features a 1.54-inch TFT screen that can be swapped for four macro keys.
+Massive 5000mAh battery for extended wireless use.
+Includes a five-layer sound-dampening system with Poron, silicone, and PET.
+Offers a dedicated silent linear switch option (Sea Salt Silent V2).

−Very heavy at 1.3kg and large, making it unsuitable for travel.
−Lacks adjustable feet, offering only a fixed 5.8-degree typing angle.
−More expensive than the EK21, reflecting its full-keyboard feature set.
−Does not support VIA software, relying on proprietary Epomaker drivers.

Which Keyboard Is Better for Your Needs?

The RT100 Pro is the clear choice for primary use as a full-sized keyboard, winning in gaming, office, and programming scenarios due to its complete layout, silent switch option, and large battery. The EK21 excels solely in portability for travel and offers deeper firmware customization via VIA. For content creation, the decision splits based on whether you prioritize a compact control surface or a full keyboard for shortcuts.

GamingEpomaker RT100 Pro

•The RT100 Pro's full 96% layout provides dedicated macro and function keys without layers.
•Its listed 4ms latency in wired mode may offer a responsiveness edge for competitive play.
•The 1.3kg weight provides a stable, anchored base during intense sessions.

OfficeEpomaker RT100 Pro

•The RT100 Pro's silent linear switch option is explicitly designed for shared spaces.
•Its 5000mAh battery offers significantly longer wireless runtime than the EK21's 1000mAh cell.
•The included volume knob allows for quick audio adjustments during calls.

ProgrammingEpomaker RT100 Pro

•The full 96% layout includes a numpad and arrow keys, essential for coding efficiency.
•The programmable screen module can be swapped for four extra programmable macro keys.
•The fixed 5.8-degree typing angle may provide more consistent ergonomics for long sessions.

TravelEpomaker EK21

•The EK21 weighs only 200g and measures 29 x 138 x 93 mm, making it highly portable.
•Its compact 20-key form factor fits easily into a laptop bag or backpack.
•The 1000mAh battery is sufficient for a portable accessory's needs.

ModdingEpomaker EK21

•The EK21 supports VIA software for deep, open-source key remapping and macro programming.
•Its PCB and plate are flex-cut, according to the vendor description, for a more flexible typing feel.
•It includes three layers of foam (Poron and IXPE) for sound customization out of the box.

Content CreationTie

•The EK21's programmable knob and VIA support are excellent for assigning timeline or brush controls.
•The RT100 Pro's large layout is better for shortcut-heavy software like Adobe Suite or DAWs.
•Both offer customizable RGB lighting for matching a desk aesthetic.