Keychron K2 Ultra vs K3 Max
Get the Keychron K2 Ultra for the 4,000 mAh battery and the 8,000 Hz polling rate.
KeebFinder may earn a commission when you buy through these links, at no extra cost to you.
5.0 (3)5.0 · 3 reviews
from$119at MK
4.3 (15)4.3 · 15 reviews
from$89at MK
Which one should you get?
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.
- Missing ISO-DE, ISO-UK, ISO-Nordic. The other board is sold in those layouts.
Get the
Keychron K3 Max
Build quality in the top 5% 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.
- Missing ISO-FR, ISO-ES, ISO-IT. The other board is sold in those layouts.
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 K2 Ultra
Keychron K3 Max
Battery
4,000 mAh
1,550 mAh
A larger battery means fewer cables during the day
Low profile
No
Yes
Max polling rate
8,000 Hz
1,000 Hz
Higher polling helps competitive FPS and does nothing for typing
Case material
ABS, Aluminum
ABS, Aluminum, Plastic, Wood
Mount style
Gasket Mount
Plate Mount
- Keychron K2 Ultra
- Keychron K3 Max
- Performance
- 9081
- Build quality
- 8686
- Productivity
- 9494
- Customizability
- 9291
- Portability
- 8277
- 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 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 K3 Max
15 owner reviews
“Noce keyboard, i appreciate the level of customization QMK provides. One thing was little disappointing - the tactile feeling comparing to K3. Other than that its very good kb!”
“I sold my k3 pro and got this. The one I got drops connection intermittently or doesn't type or respond right away. It sounds nice, but stiff reds are not as pleasant to type on as previous keyboards reds. I really thought I ordered hotswap RGB max but seems…”
Keychron K2 Ultra vs K3 Max specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
12 of 27 specs differ
Keychron K2 Ultra
Keychron K3 Max
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 K2 Ultra
Keychron (DE)
ISO-FR, ISO-ES, ISO-IT
In stockDoes not ship to you
Keychron K3 Max
Input Gear
ISO-DE
Out of stockShips to you
Keychron
ISO-DE, ISO-UK, ISO-Nordic, ISO-SW
Out of stockShips to you
Keychron (DE)
ISO-DE, ISO-UK, ISO-SW
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.
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.