Keychron K2 Max vs K3Full-Profile vs Low-Profile 75% Keyboard
Choose the K2 Max for a premium, customizable typing experience, or the K3 for an ultra-slim, portable low-profile design.
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4.5 (2)4.5 · 2 reviews
from$94at Keychron
No reviews
from$105at Keychron (DE)
Which one should you get?
Get the
Keychron K2 Max
Full-Profile
Build quality in the top 10% of 75% boards under $100.
- Extensive firmware support with QMK, VIA, and the Keychron Launcher web app.
- Superior acoustic design with multiple foam layers (IXPE, PET, EPDM) and a steel plate.
- High-performance wireless with a 1000 Hz polling rate on 2.4 GHz and wired connections.
- South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
- Missing ISO-FR. The other board is sold in those layouts.
Get the
Keychron K3
Low-Profile 75% Keyboard
Build quality in the bottom 40% of 75% boards under $150.
- Ultra-slim, low-profile design marketed as 40% slimmer than conventional switches.
- Lightweight and highly portable, often including a dust cover.
- Hot-swappable for its specific low-profile Keychron Optical switches.
- 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-DE, ISO-UK, ISO-Nordic. The other board is sold in those layouts.
Your choice hinges on the typing experience and features you value most. For a top-tier, customizable mechanical keyboard with excellent sound, performance, and programmability, the Keychron K2 Max is the superior investment. If your main goal is a sleek, portable keyboard with a low-profile typing feel for on-the-go use, the Keychron K3 is the appropriate and more affordable option.
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 Max
Keychron K3
Connection
Bluetooth, 2.4 GHz, Wired
Bluetooth, Wired
Wireless for several devices and wired for lower latency
Battery
4,000 mAh
1,550 mAh
A larger battery means fewer cables during the day
Low profile
No
Yes
Mount style
PCB Mount, Plate Mount
Plate Mount
QMK
Yes
No
The deep option when you want to remap every key
- Keychron K2 Max
- Keychron K3
- Performance
- 8164
- Build quality
- 8561
- Productivity
- 9566
- Customizability
- 9168
- Portability
- 7980
- Layout size: 75%
- Hot-swappable
- Case material: ABS, Aluminum
- Switch options: Clicky, Linear, Tactile
What will you mostly use it for?
The K2 Max is the clear choice for users who prioritize deep customization, gaming performance, and a premium typing feel, winning in Gaming, Programming, Modding, and Content Creation. The K3's primary advantage is in Travel, thanks to its ultra-slim, low-profile design. For general Office use, the decision comes down to personal preference for keycap height and typing angle, making it a tie.
Pick the Keychron K2 Max
- The K2 Max has a specified 1000 Hz polling rate in its 2.4 GHz and wired modes for lower latency.
- Its south-facing RGB LEDs avoid interference with Cherry-profile keycaps, a common choice for gamers.
- The vendor description highlights its 1000 Hz polling rate makes latency 'hardly noticeable even in competitive games'.
Keychron K2 Max vs K3 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
15 of 27 specs differ
Keychron K2 Max
Keychron K3
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 Max
Keychron
ISO-DE, ISO-UK, ISO-Nordic, ISO-SW
In stockShips to you
Keychron (DE)
ISO-DE, ISO-UK, ISO-SW
Out of stockDoes not ship to you
Keychron K3
Keychron (DE)
ISO-FR
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 Max vs K3: your questions
The K2 Max is a full-profile mechanical keyboard with standard-height keycaps and switches. The K3 is an ultra-slim, low-profile keyboard where the vendor states the switches are 40% slimmer than conventional ones, resulting in a much thinner overall body.
You can use Cherry MX switches on the hot-swappable K2 Max, as it supports standard 3-pin and 5-pin MX-style switches. You cannot use them on the K3, as its hot-swappable version only accepts low-profile Keychron Optical switches with a different form factor.
The K2 Max has significantly more advanced software support. It is compatible with the open-source QMK and VIA firmware for deep customization, and also works with the Keychron Launcher web app. The K3's vendor description does not mention comparable programming software.
The K2 Max has a larger 4000mAh battery, while the K3 has a 1550mAh battery. While actual runtime depends on usage and lighting, the K2 Max's larger capacity suggests it will last longer between charges under similar conditions.
Yes, both keyboards are marketed as suitable for Mac and Windows. Each includes extra keycaps to match the macOS modifier key layout (Command, Option) and a system toggle switch.
Yes. According to the vendor, the K2 Max has a 1000 Hz polling rate in its 2.4 GHz wireless and wired modes, which is designed to minimize latency for gaming.
The K3's package includes a USB-C cable, a keycap puller, a switch puller (for the optical version), a dust cover, and a user manual. The inclusion of a dust cover is a specific advantage for portability.
The K2 Max offers three adjustable typing angles: 5°, 9°, and 12°. The K3 has two-level adjustable rubber feet, providing a more basic angle adjustment.
South-facing LEDs, as on the K2 Max, shine light toward the user and avoid interfering with the legends on Cherry-profile keycaps. The K3 uses north-facing RGB, which can cause such interference with certain keycap sets.
Yes, but only in specific configurations. The K3's hot-swappable feature is available only for the low-profile Keychron Optical switch version. It is not compatible with standard MX mechanical switches.
The K2 Max is far more mod-friendly. It features a steel plate, screw-in stabilizers, multiple acoustic foam layers, and broad MX-switch compatibility. The K3's modding potential is limited to its specific low-profile optical switch ecosystem.
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