Head to head · Prices checked Nov 11, 2026

Keychron B3 Pro vs K3 V3

Get the Keychron K3 V3 for hot-swappable and the 1,550 mAh battery.

KeebFinder may earn a commission when you buy through these links, at no extra cost to you.

Keychron B3 Pro

from$34at Keychron

Compare 3 stores

Hot-swappable

Keychron K3 V3

Keychron K3 QMK Wireless Mechanical Keyboard (ISO Layout) - Version 3

from$84at MK

Compare 4 stores

Quick verdict

Which one should you get?

Get the

Keychron B3 Pro

Build quality in the bottom 5% of 75% boards under $50.

Rules this board out

Switches are soldered. Swapping them means soldering.
Low-profile switches and keycaps only. Standard MX keycaps will not fit.
No ISO layout. ISO-DE, UK, and other ISO variants are not offered.

$34 at Keychron

Get the

Keychron K3 V3

Hot-swappable

Build quality in the top 10% of 75% boards under $100.

Rules this board out

Low-profile switches and keycaps only. Standard MX keycaps will not fit.
North-facing LEDs. Cherry-profile keycaps can hit the switch housing.

$84 at MK

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 B3 Pro

Keychron K3 V3

Connection
Bluetooth, 2.4 GHz, Wired
Bluetooth, Wired
Wireless for several devices and wired for lower latency
Hot-swappable
No
Yes
Switch changes without soldering
Battery
1,200 mAh
1,550 mAh
A larger battery means fewer cables during the day
Case material
ABS
ABS, Aluminum
Weight
410 g
540 g
Heavier boards stay planted and lighter ones travel

KeebFinder scores

How we score

Keychron B3 Pro
Keychron K3 V3

Performance: 50
82
Build quality: 43
83
Productivity: 70
80
Customizability: 47
89
Portability: 79
77

What they share

Layout size: 75%
Low profile
Max polling rate: 1,000 Hz
Switch options: Clicky, Linear, Tactile

See every spec side by side

Full specs

Keychron B3 Pro vs K3 V3 specs

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

13 of 25 specs differ

Spec

Keychron B3 Pro

Keychron K3 V3

Typing & switches

Switch options

Clicky, Linear, Tactile

Hot-swappable

Yes

Mount style

—

PCB Mount, Plate Mount, Top Mount

Low profile

Yes

Layout

Layout size

75%

Layout standard

ANSI

ANSI, ISO, ISO-DE, ISO-Nordic, ISO-SW, ISO-UK

Ergonomics

Standard

Display

None

Media keys

Yes

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired

Bluetooth, Wired

Max polling rate

1,000 Hz

Battery

1,200 mAh

1,550 mAhBetter

USB-C

Yes

Build & materials

Case material

ABS

ABS, Aluminum

Plate material

—

Aluminum

Keycaps

ABS

ABS, PBT

Weight

410 g

540 g

Dimensions

3 x 100 x 380 mm

19 x 306 x 116 mm

Typing angle

3°

Backlight

None

RGB, north-facing

Firmware & software

QMK

Yes

VIA

Yes

N-key rollover

Yes

Mac & Windows

Yes

Extras

Released

2025

2024

For EU buyers

ISO layouts by store

Which stores sell ISO-DE, UK, and the other regional layouts.

Keychron B3 Pro

No ISO layout at the stores we track.

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

Where to buy

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.

Keychron B3 Pro3 stores