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.
Ajazz AK820 AS
Keychron J2
Connection
Wired
Bluetooth, 2.4 GHz, Wired
Knob
Yes
No
QMK
No
Yes
VIA
No
Yes
Sound dampening
No
Yes
- Ajazz AK820 AS
- Keychron J2
- Performance
- 6070
- Build quality
- 7671
- Productivity
- 8274
- Customizability
- 7086
- Portability
- 6773
- Layout size: 75%
- Hot-swappable
- Switch options: Clicky, Linear, Tactile
- Keycaps: PBT
What owners say
Ratings and quotes collected from verified store reviews, including the critical ones.
Ajazz AK820 AS
No owner reviews collected yet.
Keychron J2
11 owner reviews
“I absolutely love this keyboard. It sounds amazing and the red switches are so smooth in feel. The colours are also great.”
“The keyboard is nice, but it took over 3 weeks of shipping to arrive. On their website it says they deliver in a week or under to the US.”
Ajazz AK820 AS vs Keychron J2 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
10 of 23 specs differ
Ajazz AK820 AS
Keychron J2
Switch options
Hot-swappable
Mount style
Sound dampening
Layout size
Layout standard
Ergonomics
Knob
Display
Media keys
Connection
Max polling rate
Battery
USB-C
Case material
Keycaps
Weight
Dimensions
Backlight
QMK
VIA
Mac & Windows
Released
Compare prices
Live prices from the stores we track, cheapest in-stock offer first.
Lowest price across stores, Amazon excluded.
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.
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.













