Keychron B1 Pro vs K3 V2
Choose the Keychron B1 Pro for its 2.4 GHz connection, 1000 Hz polling rate, and vendor-claimed long battery life, or the Keychron K3 V2 for hot-swappable switches, RGB or white backlighting, and broader listed ISO layouts.
KeebFinder may earn a commission when you buy through these links, at no extra cost to you.
4.4 (7)4.4 · 7 reviews
from$37at MK
4.8 (2,258)4.8 · 2,258 reviews
from$105at Keychron (DE)
Which one should you get?
Get the
Keychron B1 Pro
Build quality in the bottom 5% of 75% boards under $50.
- 2.4 GHz connectivity with a listed 1000 Hz polling rate.
- Keychron claims up to 1200 hours of use on a single charge.
- Light 425g weight and a 3° typing angle.
- 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 V2
Hot-swappable
Build quality in the bottom 50% of 75% boards under $150.
- Hot-swappable switch support on the specified version, with Keychron describing solder-free switch changes.
- RGB or white backlight options, including adjustable backlighting in the product description.
- Listed ISO-DE, ISO-UK, and ISO-Nordic layout options.
- Low-profile switches and keycaps only. Standard MX keycaps will not fit.
- North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
Get the Keychron B1 Pro if you want its 2.4 GHz connection, listed 1000 Hz polling rate, and vendor-claimed extended battery life. Get the Keychron K3 V2 if hot-swappable switches, backlighting, or its listed ISO-DE, ISO-UK, and ISO-Nordic options matter more. Both require low-profile switches and keycaps, and the K3 V2’s north-facing LEDs may limit Cherry-profile keycap fit.
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 V2
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
Aluminum, Plastic
Layout standard
ANSI, ISO, JIS
ANSI, ISO, ISO-DE, ISO-ES, ISO-Nordic, ISO-UK, JIS
ISO and JIS exist so regional layouts fit
- Keychron B1 Pro
- Keychron K3 V2
- Performance
- 5063
- Build quality
- 4265
- Productivity
- 6865
- Customizability
- 4668
- Portability
- 7880
- Layout size: 75%
- Low profile
- Switch options: Clicky, Linear, Tactile
- Keycaps: ABS
What will you mostly use it for?
The B1 Pro has the clearer fit for travel and wireless setups that benefit from 2.4 GHz or its advertised long battery life. The K3 V2 is more suitable for switch experimentation, backlighting, and buyers who need one of its listed regional layouts. Gaming leans toward the B1 Pro on its explicitly listed 2.4 GHz polling rate, though the supplied features do not establish a broader gaming-performance verdict. Office use favors the B1 Pro for its multiple connection modes, while creative work may favor the K3 V2’s lighting options.
Pick the Keychron B1 Pro
- The B1 Pro lists a 1000 Hz polling rate for its 2.4 GHz connection.
- The K3 V2 lists Bluetooth and wired connectivity, but no 2.4 GHz mode or polling-rate figure.
What owners say
Ratings and quotes collected from verified store reviews, including the critical ones.
Keychron B1 Pro
7 owner reviews
“I really like this keyboard, particularly due to its ISO PT layout. For the next iteration, I suggest using a higher-quality plastic, as the keycaps feel a bit cheap. I would easily pay 20/30 EUR more if the keyboard felt more premium.”
Keychron K3 V2
2,258 owner reviews
“I had a full-size mechanical keyboard before that was tking too much of deskspace. This keyboard with it's 65% size is amazing and saves quite some desk space.”
Keychron B1 Pro vs K3 V2 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
7 of 21 specs differ
Keychron B1 Pro
Keychron K3 V2
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
Keycaps
Weight
Dimensions
Typing angle
Backlight
Mac & Windows
Released
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.
ISO layouts by store
Which stores sell ISO-DE, UK, and the other regional layouts.
Keychron B1 Pro
- Go to Keychron
Keychron
ISO
In stockShips to you
- Go to Keychron (DE)
Keychron (DE)
ISO
In stockDoes not ship to you
Keychron K3 V2
- Go to Keychron
Keychron
ISO-DE, ISO-UK, ISO-Nordic, ISO-ES
Out of stockShips to you
- Go to Keychron (DE)
Keychron (DE)
ISO-DE, ISO-UK, ISO-ES
In stockDoes not ship to you
Keychron B1 Pro vs K3 V2: your questions
The B1 Pro lists a 1000 Hz polling rate for its 2.4 GHz connection, making that feature its clearest gaming distinction. The K3 V2 listing includes Bluetooth and wired connections but does not give a polling-rate figure.
Yes, the B1 Pro lists 2.4 GHz connectivity as well as Bluetooth and wired connections. Keychron also describes a dedicated 2.4 GHz dongle and a 1000 Hz polling rate in that mode.
Keychron claims up to 1200 hours of use on one charge for the B1 Pro. Actual use may differ, and the product listing also specifies an 800mAh battery.
The K3 V2 is listed as hot-swappable, and Keychron describes this feature for its low-profile optical switch version. The vendor says compatible switches can be changed without soldering.
Neither board supports standard MX keycaps according to its compatibility details. Both are restricted to low-profile switches and keycaps.
Its north-facing LEDs can cause Cherry-profile keycaps to hit the switch housing. Buyers considering that keycap profile should account for this fit warning.
The K3 V2 is listed with RGB and white backlight options, and its vendor description mentions adjustable backlighting. The B1 Pro is listed without RGB.
The K3 V2 listing includes ISO-DE, ISO-UK, and ISO-Nordic, as well as ISO-ES. The B1 Pro compatibility details identify ISO-DE, ISO-UK, and ISO-Nordic as missing from its listed layouts.
The B1 Pro weighs 425g, and Keychron describes it as lightweight and ultra-portable. Its listed dimensions are 5 x 296 x 130 mm.
Keychron says the B1 Pro can connect to three Bluetooth devices and one dedicated 2.4 GHz dongle, alongside a wired connection. The product metadata lists Bluetooth, 2.4 GHz, and wired connectivity.
The K3 V2 is listed with a 1550mAh battery. Keychron gives up to 34 hours of Bluetooth working time for the backlight versions at the lowest brightness.
Yes, both are listed as 75% keyboards. The K3 V2 vendor description says its layout retains multimedia and function keys in a compact format.
Not sold on either?
Still torn?
Answer a few quick questions and the keyboard finder ranks 2,000+ boards by how you will actually use yours.