Keychron
Keychron B4 Pro Ultra-Slim
Released 2025
Researched from maker specs and published sources. Last checked Oct 18, 2026.
Ultra-slim 96% wireless board with 1000Hz and no backlight
A low-profile 96% wireless keyboard, 495 g by Keychron's figure, with no backlight. No review of this exact model found; evidence is Keychron's specs and sibling reviews.
Sources
Our take, based on research
A plausible slim numpad board, but only the maker's specs and a sibling review back it. Treat it as unproven.
Overview
The B4 Pro is the 96% model in the ultra-slim B-Pro line. Keychron's page lists ABS keycaps, an 800 mAh battery rated at up to 300 hours, 1000Hz polling, tri-mode connectivity, no backlight and a weight of 495 g. The page does not state the switch type, so the scissor construction is assumed from the series rather than confirmed for this model. Parka Blogs reviewed the 75% B3 Pro from the same line and found quiet, responsive keys but no backlight and some shortcut problems; that is the best guide to how this board is likely to behave, not a test of it.
Pros & Cons
- 96% layout with a numpad
- Light at 495 g (Keychron)
- Tri-mode with up to 300 hours claimed
- No backlight
- Switch type and software not stated on Keychron's page
- No review of this exact model found
Who Is This For?
- Typists who want a light 96% for travel or the office
- Gamers
- Anyone who wants backlighting or hot-swap
Where to Buy
Dimensions
376.8 x 118.9 mm
Weight
495 g / 1.09 lbs
Case Material
Not listed
Connectivity
Both
Plate Options
Case Colors
Software Support
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