Keychron J1 vs K2 Ultra
Get the Keychron K2 Ultra for the 4,000 mAh battery and the 8,000 Hz polling rate.
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4.0 (1)4.0 · 1 reviews
from$59at Keychron
5.0 (3)5.0 · 3 reviews
from$119at MK
Which one should you get?
Get the
Keychron J1
Build quality in the top 40% of 75% boards under $100.
- 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.
Get the
Keychron K2 Ultra
Battery
Build quality in the top 10% of 75% boards under $150.
- South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
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.
Keychron J1
Keychron K2 Ultra
Battery
2,000 mAh
4,000 mAh
A larger battery means fewer cables during the day
Low profile
Yes
No
Max polling rate
1,000 Hz
8,000 Hz
Higher polling helps competitive FPS and does nothing for typing
Case material
ABS
ABS, Aluminum
Weight
661 g
1,084 g
Heavier boards stay planted and lighter ones travel
- Keychron J1
- Keychron K2 Ultra
- Performance
- 8290
- Build quality
- 7186
- Productivity
- 8994
- Customizability
- 8692
- Portability
- 8082
- Layout size: 75%
- Connection: Bluetooth, 2.4 GHz, Wired
- Hot-swappable
- Switch options: Clicky, Linear, Tactile
- QMK
- VIA
What owners say
Ratings and quotes collected from verified store reviews, including the critical ones.
Keychron J1
1 owner reviews
“I like everything about this keyboard: the keys, their profile, the typing sound of the banana switch, the shape of the keyboard itself, and its size. There are no battery issues either; it holds a charge surprisingly long, and I don't remember the last time…”
Keychron K2 Ultra
3 owner reviews
“very compact, build quality is great, and I don't even feel any latency when using the keyboard wireless.”
Keychron J1 vs K2 Ultra specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
11 of 27 specs differ
Keychron J1
Keychron K2 Ultra
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.
Keychron J1
No ISO layout at the stores we track.
Keychron K2 Ultra
Keychron (DE)
ISO-FR, ISO-ES, ISO-IT
In 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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