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Compare Ajazz AK820 Pro vs Epomaker TH40 Differences Side by Side

This comparison is for buyers torn between a feature-rich compact layout and an ultra-minimalist programmable board. The Ajazz AK820 Pro offers a familiar 75% form with a unique TFT screen, while the Epomaker TH40 shrinks to a 40% layout with a split spacebar, demanding layers for daily use. Both share gasket mounts, triple-mode connectivity, and hot-swap sockets, making the core decision about layout commitment versus out-of-box usability.

76
Ajazz AK820 Pro
-10% off
82
Epomaker TH40

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4.6 (737)
3.9 (52)
  • Released in 2023
  • Available in a 75% layout
  • Offers Normal ergonomics
  • Comes with a knob
  • Includes a Yes, TFT display
  • Connects via USB-C
  • Has built-in sound dampening
  • Equipped with a 4000 mAh battery
  • Weighs about 810 g
  • Sized at 40 x 327 x 136 mm
  • Made with a ABS, Aluminum case
  • Released in 2024
  • Available in a 40% layout
  • Offers Split Spacebar ergonomics
  • Includes a No display
  • Supports QMK firmware
  • Supports VIA configuration
  • Runs at a 1000 Hz polling rate
  • Equipped with a 3000 mAh battery
  • Weighs about 500 g
  • Sized at 35 x 258 x 97 mm
  • Made with a ABS case
Scores
  • Performance: 60.5
  • Build Quality: 66.2
  • Productivity: 82.3
  • Customizability: 72.6
  • Portability: 79.3
Scores
  • Performance: 73.8
  • Build Quality: 75.4
  • Productivity: 62.5
  • Customizability: 86.1
  • Portability: 84.2
Name
Ajazz AK820 Pro
Name
Epomaker TH40
Release year
2023
Release year
2024
Switch Options
Linear
Switch Options
Linear
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
75%
Layout Size
40%
Layout Standard
ANSI
Layout Standard
ANSI
Layout Ergonomics
Normal
Layout Ergonomics
Split Spacebar
Knob Support
 
Knob Support
 
Display Support
 
TFT
Display Support
 
Mac/Win Support
 
Mac/Win Support
 
Multi-Media Keys
 
Multi-Media Keys
 
USB-C
 
USB-C
 
USB passthrough
 
USB passthrough
 
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate
-
Polling Rate
1000 Hz
Battery capacity
4000 mAh
Battery capacity
3000 mAh
Hall Effect Support
 
Hall Effect Support
 
QMK Support
 
QMK Support
 
VIA Support
 
VIA Support
 
VIAL Support
 
VIAL Support
 
N-Key Rollover
 
N-Key Rollover
 
Rapid Trigger
 
Rapid Trigger
 
Mount Style
Gasket Mount
Mount Style
Gasket Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb, South-face
Backlight
 
Rgb, South-face
Case Colors
Case Colors
Case Material
ABS, Aluminum
Case Material
ABS
Keycaps Material
PBT
Keycaps Material
PBT
Dimensions
40 x 327 x 136 mm
Dimensions
35 x 258 x 97 mm
Weight
810g
Weight
500g
*Something incorrect or missing? Please
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Pros and Trade-offs

Your priority should be layout. If you want a keyboard that works immediately with a familiar key arrangement and bonus features like a screen, the Ajazz AK820 Pro is the sensible choice. If you are willing to learn layers and value the smallest possible footprint paired with extensive VIA programmability for a tailored experience, the Epomaker TH40 is the board to get. Consider the TH40's steeper learning curve a worthwhile investment for a truly personalized setup.

Ajazz AK820 Pro

  • +Includes a 0.85-inch TFT screen for customizable system info and visuals.
  • +75% layout offers a practical balance of compact size and dedicated arrow/function keys.
  • +Larger 4000mAh battery for extended wireless use.
  • +Comes with extra accessories including three extra keycaps and a 2-in-1 puller.
  • +Features a metal knob for media or application control.
  • −Larger and heavier (810g) than the 40% alternative.
  • −Lacks native VIA or QMK support for advanced key remapping.
  • −Case is primarily ABS plastic, with aluminum listed as a material but not detailed.

Epomaker TH40

  • +Ultra-compact 40% layout with split spacebar maximizes desk space and portability.
  • +Fully programmable via VIA software with QMK support for deep customization.
  • +Vendor description lists specific sound-dampening materials: Poron plate foam, IXPE switch pad, and bottom Poron foam.
  • +Lighter weight (500g) and smaller footprint for easy transport.
  • −40% layout requires heavy use of function layers for numbers, symbols, and arrows, demanding a learning curve.
  • −Smaller 3000mAh battery.
  • −Some user reviews mention difficulties getting VIA to recognize the keyboard initially.
  • −Includes fewer accessories in the box (only keyboard, cable, manual).

Which Keyboard Is Better for Your Needs?

The Ajazz AK820 Pro is the clear choice for traditional office work, gaming, and content creation where its 75% layout and included screen provide immediate utility. The Epomaker TH40 excels in specialized scenarios like programming and travel, where its ultra-compact size and deep VIA programmability are primary assets. For hardware modding, the TH40 has an edge due to its detailed foam kit and open firmware support.

GamingAjazz AK820 Pro
  • •The 75% layout includes dedicated arrow keys and function row, which are commonly used in games.
  • •Its larger form factor may provide more stability during intense use.
  • •The vendor listing confirms a 1000Hz polling rate in wired and 2.4GHz modes.
OfficeAjazz AK820 Pro
  • •The 75% layout retains number keys and punctuation on the primary layer for standard document and spreadsheet work.
  • •Includes a TFT screen for displaying battery status, date, and time.
  • •Larger battery capacity (4000mAh) may require less frequent charging.
ProgrammingEpomaker TH40
  • •Native VIA and QMK support allows for deep key remapping and macro creation essential for coding workflows.
  • •The split spacebar design can be programmed for layer toggles or common symbols.
  • •Four switchable layers, three of which are programmable, offer extensive customization for shortcuts.
TravelEpomaker TH40
  • •Smaller 40% layout dimensions (258 x 97 x 35 mm) and lighter weight (500g) take up less bag space.
  • •Ultra-compact design is built for portability, as stated in its vendor description.
  • •Includes tri-mode connectivity for use with multiple devices on the go.
ModdingEpomaker TH40
  • •Explicit support for VIA and QMK firmware offers extensive software customization.
  • •Vendor description mentions Poron plate foam, an IXPE switch pad, and bottom Poron foam for acoustic mods.
  • •Hot-swappable PCB supports 3-pin and 5-pin switches for hardware changes.
Content CreationAjazz AK820 Pro
  • •The 75% layout provides direct access to number keys for timeline scrubbing and layer shortcuts without memorization.
  • •Includes a metal knob, which can be mapped to volume or scrub controls in editing software.
  • •TFT screen can display system info or custom graphics relevant to a creative workflow.

Frequently Asked Questions (FAQ)

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