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Keychron B5 Pro Ultra-Slim compared with Keychron V3
Spec Keychron B5 Pro Ultra-Slim

Keychron

Keychron B5 Pro Ultra-Slim

$40

“Ultra-slim full-size wireless board with 112 keys and no backlight”

Keychron V3 by Keychron

Keychron

Keychron V3

$60–$70

“QMK support under $100 is absurd”

Budget King
Price , different $40 $60–$70
Size , different Full TKL
Type , different Barebones Pre-built
Connectivity , different Wireless + Wired Wired
Released , different 2025 2022
Mounting , different Integrated Plate Tray Mount
Case , different Not listed ABS Plastic
Colors , different Space Gray, Ivory White Frosted Black, Carbon Black
Weight , different 623 g / 1.37 lbs 966g
Dimensions , different 437.6 x 120.6 mm 359 x 138.5 x 31mm
Typing angle , different Not listed 5.2°
Front height , different Not listed 22mm
Switches Mechanical Mechanical
Profile Standard Standard
Keycaps , different ABS Double-shot PBT, OSA Profile
PCB , different Fixed switches Hot-swap, South-facing RGB
Plates , different Not listed Steel
Battery , different 800 mAh, up to 300 hours —
Compatible switches , different MX-style MX-style 3-pin and 5-pin
Software , different Keychron software QMK, VIA
NKRO , different No Yes
RGB , different No Yes
Features , different Full layout, Tri-mode QMK/VIA, 80% TKL with Knob, Hot-swap, Screw-in Stabs, Double-shot PBT, South-facing LEDs, 1000Hz Polling
Good for , different Typists who want a slim full-size wireless board Office desks with several devices A first QMK/VIA keyboard on a small budget Learning switch swapping without soldering Desk or office use where wireless is not needed TKL fans who want arrow keys and a nav cluster
Skip if , different Gamers People who need backlighting or hot-swap Anyone who needs wireless Buyers who want an aluminum case People who want a soft, flexy gasket-style feel Buyers who need a guaranteed in-stock listing
Pros , different Full-size layout with 112 keys in a thin body Tri-mode with up to 300 hours claimed (Keychron) QMK firmware with the Keychron Launcher web app for remapping and macros Hot-swap sockets, so switches can be changed without soldering Screw-in PCB stabilizers; Keychron says third-party screw-in stabilizers also fit Double-shot PBT keycaps and K Pro switches on the assembled version (pre-lubed except the clicky Blue) Steel plate with a tray mount, which reviewers of the V3 8K found stable and firm TKL layout with arrow keys and navigation keys, and an optional knob
Cons , different No backlight Switch type and software not stated on Keychron's page No review of this exact model found Wired only; the V3 Max is the wireless version ABS plastic case rather than aluminum Tray mount feels stiffer than a gasket-mounted board (APH Networks, on the V3 8K) Keychron's page lists it as sold out, so availability is uncertain Little independent review coverage of this exact model
Research take , different A plain full-size slim board with thin evidence behind it. The B6 Pro reviews are the closest guide. A plain wired TKL that, on Keychron's specs, gives QMK/VIA, hot-swap and screw-in stabilizers in a plastic case. Its trade-offs are the plastic build, a stiffer tray-mount feel and no wireless. Because reviews of this exact model are scarce and Keychron lists it as sold out, the V3 Max or V3 8K may be the more practical buy.