Epomaker TH87 vs Keychron J4
Get the Epomaker TH87 for the 10,000 mAh battery. Get the Keychron J4 for qmk and via.
KeebFinder may earn a commission when you buy through these links, at no extra cost to you.
4.7 (16)4.7 · 16 reviews
from$60at Epomaker
90-day lowLowest price in 90 days
No reviews
from$59at Keychron
Which one should you get?
Get the
Epomaker TH87
Battery
Build quality in the bottom 45% of 80% boards under $100.
- South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
Get the
Keychron J4
QMK
Build quality in the top 30% of 80% boards under $100.
- North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
- No ISO layout. ISO-DE, UK, and other ISO variants are not offered.
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 TH87
Keychron J4
Battery
10,000 mAh
4,000 mAh
A larger battery means fewer cables during the day
Switch options
Linear, Silent
Clicky, Linear, Tactile
Weight
1,000 g
870 g
Heavier boards stay planted and lighter ones travel
QMK
No
Yes
The deep option when you want to remap every key
VIA
No
Yes
GUI remapping without compiling firmware
- Epomaker TH87
- Keychron J4
- Performance
- 7482
- Build quality
- 5971
- Productivity
- 7589
- Customizability
- 5889
- Portability
- 8573
- Layout size: 80%
- Connection: Bluetooth, 2.4 GHz, Wired
- Hot-swappable
- Max polling rate: 1,000 Hz
- Case material: ABS
- Sound dampening
Epomaker TH87 vs Keychron J4 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
11 of 25 specs differ
Epomaker TH87
Keychron J4
Switch options
Hot-swappable
Mount style
Sound dampening
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 TH87
Epomaker
ISO-DE, ISO-UK
In stockShips to you
Keychron J4
No ISO layout at the stores we track.
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.
Not sold on either?
Still torn?
Answer a few quick questions and the keyboard finder ranks 2,000+ boards by how you will actually use yours.