Which one should you get?
Get the
Epomaker Luma40
Build quality in the top 15% of 40% boards under $150.
- Low-profile switches and keycaps only. Standard MX keycaps will not fit.
- North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
- No ISO layout. ISO-DE, UK, and other ISO variants are not offered.
- Compact layout only. No function row, dedicated arrow keys, or numpad.
Get the
Keychron K4 Pro
Battery
Build quality in the top 10% of 96% boards under $100.
- South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
- Compact full-size layout. The numpad is present, the gaps of a full-size board are not.
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.
Epomaker Luma40
Keychron K4 Pro
Layout size
40%
96%
Connection
Bluetooth, 2.4 GHz, Wired
Bluetooth, Wired
Wireless for several devices and wired for lower latency
Battery
1,450 mAh
4,000 mAh
A larger battery means fewer cables during the day
Low profile
Yes
No
Ergonomics
Ortholinear
Standard
- Epomaker Luma40
- Keychron K4 Pro
- Performance
- 7481
- Build quality
- 8184
- Productivity
- 8895
- Customizability
- 8596
- Portability
- 8554
- Hot-swappable
- Max polling rate: 1,000 Hz
- Mount style: Tray Mount
- QMK
- VIA
- Sound dampening
What owners say
Ratings and quotes collected from verified store reviews, including the critical ones.
Epomaker Luma40
3 owner reviews
“Hello there the luma 40 is one of my favorite keebs i used i can bring it anywhere with me i really love it thanks u guys”
Keychron K4 Pro
7 owner reviews
“I previously had a normal K4 and i love the new one, the only thing is that the stabilizers lube work is kinda bad and the space bar was very rattly but after some lube work the K4 pro retakes the perfect productivity keyboard.”
Epomaker Luma40 vs Keychron K4 Pro specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
16 of 27 specs differ
Epomaker Luma40
Keychron K4 Pro
Switch options
Hot-swappable
Mount style
Low profile
Sound dampening
Screw-in stabilizers
Layout size
Layout standard
Ergonomics
Display
Media keys
Connection
Max polling rate
Battery
USB-C
Case material
Plate material
Keycaps
Weight
Dimensions
Typing angle
Backlight
QMK
VIA
N-key rollover
Mac & Windows
Released
ISO layouts by store
Which stores sell ISO-DE, UK, and the other regional layouts.
Epomaker Luma40
No ISO layout at the stores we track.
Keychron K4 Pro
Keychron
ISO-DE, ISO-UK, ISO-Nordic, ISO-FR, ISO-ES, ISO-SW
In stockShips to you
Keychron (DE)
ISO-DE, ISO-UK, ISO-FR, ISO-ES, ISO-SW
Out of stockDoes not ship to you
Compare prices
Live prices from the stores we track, cheapest in-stock offer first.
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.
Lowest price across stores, Amazon excluded.
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