Keychron K3 V3 vs K6Low-Profile or Longer Battery
Choose the K3 V3 for its low-profile 75% layout and QMK support, or the K6 for its larger battery and more compact 65% footprint.
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4.8 · 507 reviews
from$59at Keychron
Which one should you get?
Get the
Keychron K3 V3
Build quality in the top 10% of 75% boards under $100.
- 75% layout includes a function row and multimedia keys.
- QMK support and Keychron Launcher offer key remapping and macro customization.
- Hot-swappable option is available for low-profile mechanical switches.
- Low-profile switches and keycaps only. Standard MX keycaps will not fit.
- North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
- No numpad.
Get the
Keychron K6
Battery
Build quality in the top 45% of 65% boards under $100.
- 4000mAh battery, with vendor-listed wireless use of up to 240 hours with the backlight off.
- 65% layout is smaller than the K3 V3's 75% layout and includes dedicated arrow keys.
- Hot-swappable version is described as compatible with almost all MX-style SMD-LED mechanical switches.
- North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
- South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
- Missing ISO-SW. The other board is sold in those layouts.
- 65% layout. No function row and no numpad.
Pick the K3 V3 if a low-profile 75% layout, QMK customization, and a function row matter more than battery capacity. Choose the K6 if you want a smaller 65% board and a larger battery, and prefer its stated MX-style switch options. Check the specific hot-swappable version and layout before ordering, since the switch formats and regional layout availability differ.
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 K3 V3
Keychron K6
Layout size
75%
65%
Battery
1,550 mAh
4,000 mAh
A larger battery means fewer cables during the day
Low profile
Yes
No
Case material
ABS, Aluminum
ABS, Aluminum, Plastic
Mount style
PCB Mount, Plate Mount, Top Mount
Plate Mount, Tray Mount
- Keychron K3 V3
- Keychron K6
- Performance
- 8255
- Build quality
- 8369
- Productivity
- 8058
- Customizability
- 8967
- Portability
- 7788
- Connection: Bluetooth, Wired
- Hot-swappable
- Switch options: Clicky, Linear, Tactile
- Keycaps: ABS, PBT
What will you mostly use it for?
The K3 V3 is the stronger fit for buyers who want a function row, QMK-based customization, or a low-profile typing format. The K6 suits travel and desk-space priorities, with its smaller layout and larger battery. For modding, the choice depends on switch preferences: the K6 has broader stated MX-style switch compatibility, while the K3 V3 adds QMK and Launcher customization. Both have hot-swappable versions, but their switch formats differ.
Pick the Keychron K3 V3
- The K3 V3 lists a 1000 Hz polling rate and N-key rollover in both wired and wireless modes.
- Its 75% layout retains a function row, unlike the K6's 65% layout.
- The K6 vendor description also lists 1000 Hz wired polling, so the K3's clearer advantage here is its layout and stated rollover support.
Keychron K3 V3 vs K6 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
12 of 25 specs differ
Keychron K3 V3
Keychron K6
Switch options
Hot-swappable
Mount style
Low profile
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 K3 V3
Keychron
ISO-DE, ISO-UK, ISO-Nordic, ISO-SW
In stockShips to you
Keychron (DE)
ISO-DE, ISO-UK, ISO-SW
In stockDoes not ship to you
Keychron K6
Keychron
ISO-UK
In stockShips to you
Keychron
ISO-DE
In stockShips to you
Keychron
ISO-Nordic
Out of stockShips to you
MK
ISO
Out of stockShips to you
Keychron (DE)
ISO-UK
Out of stockDoes not ship to you
Keychron (DE)
ISO-DE
Out of stockDoes not ship to you
Compare prices
Live prices from the stores we track, cheapest in-stock offer first.
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Lowest price across stores, Amazon excluded.
Keychron K3 V3 vs K6: your questions
The K6 is a 65% keyboard, while the K3 V3 is 75%. The K6 therefore has a more compact layout, and its vendor-listed dimensions vary by frame version.
The K6 lists a 4000mAh battery, compared with 1550mAh for the K3 V3. The K6 vendor page lists up to 240 hours with backlighting off, while the K3 V3 page lists up to 124 hours.
Yes, the K3 V3 lists QMK support, and Keychron describes using its Launcher web app for remapping keys and creating macros. The K6's listed features do not include QMK support.
Both models offer hot-swappable versions. The K3 V3 hot-swap option is for low-profile mechanical switches, while the K6 hot-swappable version is described as accepting almost all MX-style SMD-LED mechanical switches.
No, the K3 V3 compatibility rule specifies low-profile switches and keycaps, and says standard MX keycaps will not fit. The K6 hot-swappable version is described as compatible with many MX-style switches, but its keycap compatibility is not specified in the same way.
Yes, the K3 V3 uses a 75% layout, which includes a function row. The K6 is a 65% layout and its compatibility notes specify that it has no function row.
Both list Bluetooth and wired connectivity. The K6 has the larger battery at 4000mAh, while the K3 V3 lists N-key rollover in both wired and wireless modes.
The K3 V3 metadata lists a 1000 Hz polling rate, and its vendor page specifies 1000 Hz wired and 90 Hz wireless. The K6 vendor page likewise lists 1000 Hz wired and 90 Hz Bluetooth.
Yes, Keychron describes the K6 as having dedicated arrow keys. Its 65% layout also omits a function row and numpad.
The K3 V3 lists ISO-SW among its layout options. The K6 compatibility rules specify that ISO-SW is not available.
Both keyboards have north-facing LEDs, and their compatibility notes warn that Cherry-profile keycaps can hit the switch housing. The K6 also has a south-facing LED compatibility note, which warns that some sculpted keycaps can clip the LED.
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