Keychron B1 Pro vs K3 V3
Choose the B1 Pro for lower weight and 2.4 GHz connectivity, or the K3 V3 for hot-swappable switches and QMK customization.
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Which one should you get?
Get the
Keychron B1 Pro
Build quality in the bottom 5% of 75% boards under $50.
- Lighter at 425 g than the K3 V3.
- Supports Bluetooth, 2.4 GHz, and wired connections.
- The vendor claims up to 1200 hours of use on a charge.
- Switches are soldered. Swapping them means soldering.
- Low-profile switches and keycaps only. Standard MX keycaps will not fit.
- Missing ISO-DE, ISO-UK, ISO-Nordic. The other board is sold in those layouts.
Get the
Keychron K3 V3
Hot-swappable
Build quality in the top 10% of 75% boards under $100.
- A hot-swappable version is available for low-profile mechanical switches.
- QMK support and Keychron Launcher enable key remapping and macros.
- Available with RGB or white backlighting.
- Low-profile switches and keycaps only. Standard MX keycaps will not fit.
- North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
Choose the B1 Pro if you want a lighter keyboard with 2.4 GHz connectivity and the vendor-claimed long battery life. Choose the K3 V3 if switch swapping, QMK configuration, backlighting, or its wider set of listed regional layouts matter more. Before buying the K3 V3, check that your preferred version is hot-swappable, since that capability is offered on a specific version.
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 B1 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
800 mAh
1,550 mAh
A larger battery means fewer cables during the day
Case material
ABS, Plastic
ABS, Aluminum
Weight
425 g
540 g
Heavier boards stay planted and lighter ones travel
- Keychron B1 Pro
- Keychron K3 V3
- Performance
- 5082
- Build quality
- 4283
- Productivity
- 6880
- Customizability
- 4689
- Portability
- 7877
- Layout size: 75%
- Low profile
- Max polling rate: 1,000 Hz
- Switch options: Clicky, Linear, Tactile
What will you mostly use it for?
The K3 V3 takes the lead for customization-focused work, gaming features, and backlit use, largely through hot-swap options, QMK, and N-key rollover. The B1 Pro is the more travel-oriented pick, with lower weight and an additional 2.4 GHz connection mode. Both provide multimedia keys, Mac/Windows support, and a 75% layout. For office use, choose the K3 V3 if lighting and key configuration matter more than carrying weight.
Pick the Keychron K3 V3
- The K3 V3 supports N-key rollover in both wired and wireless modes.
- Its vendor description lists a 1000 Hz polling rate for wired mode.
- The B1 Pro also lists a 1000 Hz polling rate, but N-key rollover is not listed for it.
Keychron B1 Pro vs K3 V3 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
12 of 25 specs differ
Keychron B1 Pro
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 B1 Pro
Keychron
ISO
In stockShips to you
Keychron (DE)
ISO
In 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.
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 B1 Pro vs K3 V3: your questions
The B1 Pro weighs 425 g and supports 2.4 GHz, Bluetooth, and wired connections. The K3 V3 weighs 540 g and adds a hot-swappable version, QMK support, and backlighting options.
The K3 V3 lists N-key rollover for both wired and wireless modes, which is a specific advantage for simultaneous key presses. Both have a 1000 Hz polling rate listed in the metadata, while the K3 V3 vendor description specifies 1000 Hz for wired mode.
No. The B1 Pro switches are soldered, so changing them requires soldering. The K3 V3 has a hot-swappable version, with vendor-listed compatibility limited to low-profile mechanical switches.
No. Both keyboards are limited to low-profile switches and keycaps, so standard MX keycaps will not fit. The K3 V3 also has north-facing LEDs, which can cause Cherry-profile keycaps to hit the switch housing.
The B1 Pro weighs 425 g, while the K3 V3 weighs 540 g. The B1 Pro is the lighter option for carrying between locations.
Yes. The B1 Pro supports 2.4 GHz, Bluetooth, and wired connections. The K3 V3 lists Bluetooth and wired connectivity, but not 2.4 GHz.
The K3 V3 is available in white-backlight and RGB-backlight versions. The B1 Pro is listed as non-backlit and has no RGB.
The K3 V3 is listed with QMK support and the vendor describes configuring remaps and macros through Keychron Launcher. VIA is listed among its extra features, but the vendor description focuses on QMK and Launcher.
The K3 V3 layout listing includes ISO-UK, ISO-DE, ISO-SW, and ISO-Nordic in addition to ANSI and ISO. The B1 Pro metadata lists ANSI, ISO, and JIS, and identifies ISO-DE, ISO-UK, and ISO-Nordic as missing.
Keychron claims up to 1200 hours of use on a single charge for the B1 Pro. Its listed battery capacity is 800 mAh.
The K3 V3 vendor specifications list a 1550 mAh battery and up to 124 hours of use. Battery life is therefore presented differently from the B1 Pro’s vendor claim of up to 1200 hours.
Both keyboards list Mac/Windows support. The B1 Pro vendor description also names iOS, Android, and Linux, while the K3 V3 vendor description names macOS, Windows, and Linux.
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