Keychron K2 V2 vs K3 V3
Choose the K2 V2 for its massive battery and standard profile; choose the K3 V3 for an ultra-slim, QMK-programmable low-profile design.
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4.9 (2,808)4.9 · 2,808 reviews
from$59at Keychron
Which one should you get?
Get the
Keychron K2 V2
Battery
Build quality in the top 50% of 75% boards under $100.
- Massive 4000mAh battery with up to 240 hours of use (backlight off), per the vendor.
- Standard profile with tray mount and inclined bottom frame for comfortable typing.
- Includes both Windows and macOS keycaps out of the box, plus 12 extra keycaps.
- North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
- Missing ISO-SW. The other board is sold in those layouts.
Get the
Keychron K3 V3
QMK
Build quality in the top 10% of 75% boards under $100.
- Ultra-slim low-profile design, with Keychron Milk POM switches that are 33% slimmer than standard switches.
- Full QMK and VIA support via the Keychron Launcher web app for deep customization without downloads.
- Multiple acoustic foam layers (IXPE, EPDM, latex) for improved sound and typing feel.
- 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. The other board is sold in those layouts.
If battery life and a standard typing feel are your top priorities, the Keychron K2 V2 is the straightforward choice with its 4000mAh battery and proven track record. However, for users who want a highly customizable, ultra-slim keyboard with QMK firmware and modern acoustic design, the Keychron K3 V3 offers a more advanced and versatile platform. Buyers should lean toward the K3 V3 if they frequently travel, program, or mod, and toward the K2 V2 if they need long hours of unplugged office work.
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 V2
Keychron K3 V3
Battery
4,000 mAh
1,550 mAh
A larger battery means fewer cables during the day
Low profile
No
Yes
Case material
Aluminum, Plastic
ABS, Aluminum
Mount style
Tray Mount
PCB Mount, Plate Mount, Top Mount
QMK
No
Yes
The deep option when you want to remap every key
- Keychron K2 V2
- Keychron K3 V3
- Performance
- 7482
- Build quality
- 6683
- Productivity
- 6580
- Customizability
- 6689
- Portability
- 7977
- Layout size: 75%
- Connection: Bluetooth, Wired
- Hot-swappable
- Switch options: Clicky, Linear, Tactile
- Keycaps: ABS, PBT
What will you mostly use it for?
The Keychron K3 V3 wins in most use cases due to its QMK/VIA support, low-profile build, and gaming-tier 1000 Hz polling rate. It excels for programmers, modders, and creators who need custom macros and a slim, portable design. The K2 V2 remains stronger for office use thanks to its massive battery and standard typing feel, making it a better choice for uninterrupted all-day work. Both can handle gaming and content creation, but the K3 V3's modern firmware and ergonomic angles give it an edge in versatility.
Pick the Keychron K3 V3
- K3 V3 has a 1000 Hz polling rate on wired mode, stated by the vendor, providing lower latency.
- K3 V3 offers QMK firmware support via Keychron Launcher for advanced game-specific macros.
- K3 V3's low-profile switches can reduce finger travel potentially improving reaction speed.
Keychron K2 V2 vs K3 V3 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
8 of 25 specs differ
Keychron K2 V2
Keychron K3 V3
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 K2 V2
Keychron
ISO-UK
In stockShips to you
Keychron
ISO-Nordic
Out of stockShips to you
Keychron
ISO-DE
Out of stockShips to you
Keychron (DE)
ISO-FR
Out of stockDoes not ship to you
Keychron (DE)
ISO-UK
Out of stockDoes not ship to you
Keychron (DE)
ISO-Nordic
Out of stockDoes not ship to you
Keychron (DE)
ISO-DE
Out of stockDoes not ship to you
Keychron (DE)
ISO-ES
Out of stockDoes not ship to you
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
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 K2 V2 vs K3 V3: your questions
Yes, the Keychron K2 V2 is fully compatible with both macOS and Windows. It comes with included keycaps for both operating systems and supports Mac/Win mode switching, as specified by the vendor.
Yes, the Keychron K3 V3 supports both QMK firmware and VIA through the Keychron Launcher web app. This allows you to remap keys, create macros, and customize shortcuts without downloading any software.
The K2 V2 has a 4000mAh battery that can last up to 240 hours with backlight off, according to the vendor. The K3 V3 has a much smaller 1550mAh battery, but battery life estimates are not specified in the available data.
Yes, both the Keychron K2 V2 and K3 V3 offer hot-swappable versions. The K2 V2 is compatible with almost all MX-style 3-pin and 5-pin mechanical switches, while the K3 V3 only supports Keychron Milk POM and Gateron low-profile mechanical switches due to QMK limitations.
The Keychron K3 V3 has a 1000 Hz polling rate on wired mode and 90 Hz on Bluetooth wireless mode, as stated in its specifications. This makes it suitable for low-latency gaming.
No, the Keychron K2 V2 is a standard-profile keyboard. It uses standard-height Gateron G Pro switches, unlike the K3 V3 which is an ultra-slim low-profile design.
The Keychron K3 V3 has an enhanced acoustic design with multiple layers including IXPE, EPDM, and latex foam for improved sound absorption. The K2 V2 does not list any specialized acoustic foam in its specifications or vendor description.
Yes, the K3 V3 is suitable for gaming with its 1000 Hz polling rate on wired mode and low-profile switches that can reduce finger travel. It also supports QMK for setting up game-specific macros through the Launcher web app.
Both keyboards can connect with up to 3 devices via Bluetooth. The K2 V2 uses Bluetooth 5.1, while the K3 V3 uses Bluetooth 5.2 for a more stable connection.
The K2 V2 offers Gateron G Pro mechanical switches in three variants: Red (linear), Blue (clicky), and Brown (tactile). The hot-swappable version supports almost all MX-style aftermarket switches.
Yes, the K3 V3 features three levels of adjustable typing angle: 2.5°, 4.2°, and 6.5°, according to the vendor. This provides ergonomic wrist support for different typing preferences.
The Keychron K3 V3 is more portable due to its ultra-slim low-profile design and lighter weight of 540g. The K2 V2 is standard profile and heavier, making it less ideal for travel.
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