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Head to head · Prices checked Nov 10, 2026

Keychron J3 SE vs Mechboards Sofle

Get the Keychron J3 SE for qmk and via. Get the Mechboards Sofle for knob.

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Sofle Pre-Build

No reviews

$115at Mechboards

Down 18% this month

Quick verdict

Which one should you get?

Get the

Keychron J3 SE

QMK

Build quality in the bottom 50% of 96% boards under $150.

Rules this board out

  • North-facing LEDs. Cherry-profile keycaps can hit the switch housing.

Get the

Mechboards Sofle

Knob

What actually differs

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 J3 SE

Mechboards Sofle

  • Connection

    Bluetooth, 2.4 GHz, Wired

    Wired

    Wireless for several devices and wired for lower latency

  • Knob

    No

    Yes

  • Display

    None

    OLED

    A case display rather than a typing feature

  • QMK

    Yes

    No

    The deep option when you want to remap every key

  • VIA

    Yes

    No

    GUI remapping without compiling firmware

KeebFinder scores

How we score
  • Keychron J3 SE
  • Mechboards Sofle
Performance
80
64
Build quality
68
65
Productivity
89
59
Customizability
86
79
Portability
56
44

What they share

  • Hot-swappable
  • Switch options: Clicky, Linear, Tactile
See every spec side by side

Full specs

Keychron J3 SE vs Mechboards Sofle specs

Every tracked spec, side by side. Rows marked with a dot differ between the boards.

12 of 24 specs differ

Keychron J3 SE

Mechboards Sofle

Typing & switches

Switch options

Clicky, Linear, Tactile
Clicky, Linear, Tactile

Hot-swappable

Yes
Yes

Sound dampening

Yes
No

Layout

Layout size

96%
—

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

No
Yes

Display

None
OLED

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Wired

Max polling rate

1,000 Hz
—

Battery

4,000 mAh
Wired only

USB-C

Yes
Yes

Build & materials

Case material

ABS
—

Plate material

—
FR4

Keycaps

PBT
ABS

Weight

1,145 g
—

Dimensions

43 x 406 x 139 mm
—

Backlight

RGB, north-facing
RGB

Firmware & software

QMK

Yes
No

VIA

Yes
No

VIAL

No
Yes

N-key rollover

Yes
No

Mac & Windows

Yes
No

Extras

Released

2026
2022

Where to buy

Compare prices

Live prices from the stores we track, cheapest in-stock offer first.

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Lowest price across stores, Amazon excluded.

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