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Head to head · Prices checked Oct 21, 2026

Keychron K1 Pro vs K3Which Ultra-Slim to Pick?

Choose the K1 Pro if QMK customization matters, or the K3 if you prefer a more compact footprint and a lower entry price.

Quick verdict

Which one should you get?

Get the

Keychron K1 Pro

Battery

If you want

  • Full QMK and VIA support for complete key remapping and macro creation.
  • Larger 2000mAh battery for extended wireless use between charges.
  • 1000 Hz polling rate in wired mode, as confirmed by the vendor.

And can live with

  • 80% layout is larger than the K3's 75%, making it less portable.
  • No dust cover or switch puller included in the box, as per the package content list.
  • Lower portability score due to its larger size and heavier weight (580g).

Get the

Keychron K3

If you want

  • More compact 75% layout reduces desk space usage and improves portability.
  • Includes a dust cover and a switch puller for the optical version in the box.
  • Vendor describes it as one of the thinnest and lightest wireless mechanical keyboards.

And can live with

  • No QMK or VIA support, limiting software customization options.
  • Optical switch version is not compatible with standard MX mechanical switches.
  • Smaller 1550mAh battery compared to the K1 Pro's 2000mAh.

Bottom line

The Keychron K1 Pro is the better choice for users who prioritize deep customization through QMK/VIA, a larger battery, and a higher wired polling rate for gaming. The Keychron K3 is a solid alternative if you prefer a smaller, more travel-friendly form factor and are working with a tighter budget. For most users seeking a versatile low-profile keyboard, the K1 Pro offers more long-term value and flexibility.

What actually differs

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 K1 Pro

Keychron K3

  • Layout size

    80%

    75%

  • Battery

    2,000 mAh

    1,550 mAh

  • Case material

    ABS, Aluminum, Plastic

    ABS, Aluminum

  • Mount style

    Tray Mount

    Plate Mount

  • QMK

    Yes

    No

KeebFinder scores

How we score
  • Keychron K1 Pro
  • Keychron K3
Performance
81
64
Build quality
80
61
Productivity
80
65
Customizability
88
69
Portability
73
80

What they share

  • Connection: Bluetooth, Wired
  • Hot-swappable
  • Low profile
  • Switch options: Clicky, Linear, Tactile
  • Keycaps: ABS, PBT
See every spec side by side

Best for

What will you mostly use it for?

The Keychron K1 Pro wins in most productivity and customization-focused categories. Its QMK/VIA support, larger battery, and higher polling rate make it the stronger choice for gaming, programming, office, modding, and content creation. The K3 takes the edge for travel due to its smaller 75% footprint and included dust cover. For users who need deep software control and a robust feature set, the K1 Pro is clearly more capable, while the K3 is the go-to for maximum portability.

For gaming

Pick the Keychron K1 Pro

  • K1 Pro has a 1000 Hz polling rate in wired mode, as stated by the vendor.
  • K1 Pro's wireless polling rate is 90 Hz, while K3 polling rates are not provided.
  • K1 Pro supports N-Key Rollover over both wireless and wired connections.

From real owners

What owners say

Ratings and quotes collected from verified store reviews, including the critical ones.

Keychron K1 Pro

5.0

5 owner reviews

Praise
“I realy like this keyboard. I feel is harder to make typos compared to the K3 v2. I decided to go with the K1 Pro instead of the K3 Pro and it's going to to take time to adjust to the new layout, but the feeling and shape of the keys is definitely better.”
OSCAR A.Verified buyer· via Keychron

Keychron K3

No owner reviews collected yet.

Full specs

Keychron K1 Pro vs K3 specs

Every tracked spec, side by side. Rows marked with a dot differ between the boards.

9 of 25 specs differ

Keychron K1 Pro

Keychron K3

Typing & switches

Switch options

Clicky, Linear, Tactile
Clicky, Linear, Tactile

Hot-swappable

Yes
Yes

Mount style

Tray Mount
Plate Mount

Low profile

Yes
Yes

Layout

Layout size

80%
75%

Layout standard

ANSI, ISO, ISO-DE, ISO-ES, ISO-FR, ISO-Nordic, ISO-SW, ISO-UK, JIS
ANSI, ISO, ISO-FR

Ergonomics

Standard
Standard

Display

None
None

Media keys

Yes
Yes

Connectivity & battery

Connection

Bluetooth, Wired
Bluetooth, Wired

Max polling rate

1,000 Hz
—

Battery

2,000 mAhBetter
1,550 mAh

USB-C

Yes
Yes

Build & materials

Case material

ABS, Aluminum, Plastic
ABS, Aluminum

Plate material

—
Plastic

Keycaps

ABS, PBT
ABS, PBT

Weight

580 g
—

Dimensions

8 x 346 x 119 mm
—

Typing angle

3°
6°

Backlight

RGB, north-facing
RGB, north-facing

Firmware & software

QMK

Yes
No

VIA

Yes
No

N-key rollover

Yes
No

Mac & Windows

Yes
Yes

Extras

Released

2023
2023

Where to buy

Compare prices

Live prices from the stores we track, cheapest in-stock offer first.

Lowest price across stores, Amazon excluded.

  • KeychronHK

    In stock
    $67Visit
  • Keychron (DE)DE

    In stock
    $111Visit
  • AmazonGlobal

    Check price
    Visit
Keychron K33 stores
  • Keychron (DE)DE

    In stock
    $105Visit
  • AmazonGlobal

    Check price
    Visit
  • MKUS

    Out of stock
    $94Visit

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.

FAQ

Keychron K1 Pro vs K3: your questions

Yes, the vendor description confirms the K1 Pro supports VIA, allowing you to remap keys and create macros using the Keychron Launcher web app. This feature is available through a wired connection using Chrome, Opera, or Edge browsers.

No, the provided data for the K3 does not mention any support for QMK or VIA firmware. It relies on hardware-based customization through its hot-swappable optical switches and pre-programmed functions.

The K3 is designed for low-profile Keychron Optical switches. The vendor states that the optical switch version is not compatible with any conventional MX-style mechanical switch, which likely includes Gateron low-profile switches.

The K1 Pro has a larger 2000mAh battery compared to the K3's 1550mAh battery. While actual runtime depends on usage and backlight settings, the K1 Pro's higher capacity suggests it should last longer between charges.

Yes, the vendor specifies that the K1 Pro comes with low-profile double-shot PBT keycaps. These are designed to be durable and resistant to oil, which helps prevent the letters from wearing off over time.

The vendor lists the polling rate for the K1 Pro as 90 Hz in wireless mode. This is lower than the 1000 Hz polling rate available in wired mode, which is better suited for competitive gaming.

Yes, the K3 vendor description states that it includes 17 extra keycaps, providing the necessary keycaps to switch between macOS and Windows operating systems. The keyboard comes with Mac keycaps pre-installed.

The K3 has a more compact 75% layout and is advertised by the vendor as one of the thinnest and lightest wireless mechanical keyboards. It also includes a dust cover, making it the more portable option between the two.

A hot-swappable version of the K1 Pro is available. The vendor confirms this version allows you to change Gateron low-profile mechanical switches without soldering, but only low-profile Gateron switches are compatible.

The K1 Pro has redesigned stabilizers, as per the vendor description, which are intended to reduce wobble on large keys like the space bar, left Shift, backspace, and Enter key. This aims to improve typing stability.

Yes, the metadata shows the K1 Pro supports an ANSI layout among other international options. The vendor specification lists it as an 87-key keyboard with an ANSI layout.

Yes, the metadata specifies that the K3 uses a plate mount style, as opposed to the K1 Pro's tray mount. The K3's switch plate is made of plastic, which may affect the feel and sound of the typing experience.

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