Keychron B1 Pro vs B5 Pro75% Compact vs Full-Size Keyboard Choice
Choose the B1 Pro for portability and ISO layouts, or the B5 Pro for a full-size layout with a larger battery.
Which one should you get?
Get the
Keychron B1 Pro
75% Compact
- Extremely portable 75% layout measuring 296mm wide and weighing 425g.
- Available in numerous ISO layouts including German, UK, Nordic, and Spanish.
- Features an ultra-thin, low-profile design cited as 5.2mm thick.
- Smaller 800mAh battery compared to the B5 Pro.
- Lacks a dedicated number pad and function row keys.
- No mention of a magnetic storage slot for the wireless receiver.
Get the
Keychron B5 Pro
Full-Size Keyboard Choice
- Full-size 100% layout with a dedicated number pad.
- Larger 1200mAh battery capacity.
- Includes a magnetic storage slot on the keyboard for its 2.4 GHz receiver.
- Much larger and heavier at 438mm wide and 623g, less portable.
- Only listed with an ANSI layout, no ISO options.
- Thicker profile at 9.9mm, according to the manufacturer's description.
Your primary need dictates the choice. If you require a number pad for data entry, spreadsheets, or dedicated num-key shortcuts, the Keychron B5 Pro is the logical pick. If your priority is saving desk space, portability, or you need a specific ISO layout, the Keychron B1 Pro is the better option. Both deliver the same core wireless performance and programmability.
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 B5 Pro
Layout size
75%
100%
Battery
800 mAh
1,200 mAh
Low profile
Yes
No
Case material
ABS, Plastic
ABS
Weight
425 g
623 g
- Keychron B1 Pro
- Keychron B5 Pro
- Performance
- 5051
- Build quality
- 4243
- Productivity
- 6970
- Customizability
- 4649
- Portability
- 7852
- Connection: Bluetooth, 2.4 GHz, Wired
- Max polling rate: 1,000 Hz
- Switch options: Clicky, Linear, Tactile
- Keycaps: ABS
What will you mostly use it for?
The B5 Pro is the clear choice for office work and content creation where a number pad is essential. The B1 Pro dominates for travel and suits programmers who prefer a compact, portable layout with international ISO options. For gaming and modding, the keyboards are closely matched on core performance and software features, making the decision more about personal layout preference.
It's a tie
- Both offer a 1000 Hz polling rate for responsive input.
- Both support low-latency 2.4 GHz wireless and wired modes.
- Neither keyboard has RGB lighting, a common gaming feature.
What owners say
Ratings and quotes collected from verified store reviews, including the critical ones.
Keychron B1 Pro
8 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.”
“I bought this keyboard from Amazon and I thought I love it. A little over a year later (15ish months) the keyboard starts glitching like the shift key is stuck and would randomly type in ALL CAPS and add weird punctuations. The keyboard made my…”
Keychron B5 Pro
No owner reviews collected yet.
Keychron B1 Pro vs B5 Pro specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
8 of 19 specs differ
Keychron B1 Pro
Keychron B5 Pro
Switch options
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.
Lowest price across stores, Amazon excluded.
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Keychron B1 Pro vs B5 Pro: your questions
The main difference is the layout size. The B1 Pro is a 75% compact keyboard without a number pad, while the B5 Pro is a full-size 100% keyboard that includes a dedicated number pad. This makes the B1 Pro more portable and the B5 Pro better for data-heavy tasks.
The Keychron B5 Pro has a larger 1200mAh battery compared to the 800mAh battery in the B1 Pro. The manufacturer's description for the B1 Pro claims up to 1200 hours of use, but the B5 Pro's larger physical cell suggests it may sustain that life longer under similar conditions.
The vendor descriptions and specifications list both keyboards as pre-built. There is no mention of hot-swappable switch sockets for either model, indicating the switches are likely soldered in place.
Yes. Both the B1 Pro and B5 Pro list Mac/Win support. The manufacturer states they offer a Mac layout with multimedia key functions compatible with Apple keyboards and can be configured for Windows using the Keychron Launcher web app.
The Keychron B1 Pro is better for travel. It is significantly smaller (296mm vs 438mm wide), lighter (425g vs 623g), and thinner. Its compact 75% form factor is easier to pack and use on limited space like airplane trays or coffee shop tables.
No. Both the Keychron B1 Pro and B5 Pro specifications explicitly state they do not have RGB lighting. They are ultra-slim, budget-oriented models focused on wireless functionality over lighting effects.
Both keyboards feature a 1000 Hz polling rate for their 2.4 GHz wireless connection, as stated in their specifications and vendor descriptions. This provides responsive performance suitable for general use and gaming.
Yes. According to the Keychron product description, the B5 Pro has a magnetic storage slot at the top left corner of the keyboard designed to hold its Type-A 2.4 GHz wireless receiver. The B1 Pro listing does not mention this feature.
Yes. Both keyboards support the Keychron Launcher web app for customization. This allows for key remapping, creating macros, and setting shortcuts without needing installed software, as confirmed in their respective product descriptions.
The Keychron B1 Pro offers more layout options. It is available in multiple ISO layouts including German, UK, Nordic, Swiss, Spanish, Portuguese, Italian, Russian, and Hungarian. The B5 Pro is listed only with an ANSI layout.
Both keyboards include a protective silicone key skin, according to their product pages. The B5 Pro specifically mentions including a Type-A receiver. Both support wired connection via USB-C and include the necessary cable for charging and wired use.
Both are designed for typing with ergonomic features. They have a low typing angle (3°), concave keycaps for precision, and an ultra-thin body to reduce fatigue. The choice depends on layout preference: compact for space savings or full-size for a traditional feel with a number pad.
Not sold on either?
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