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Head to head · Prices checked Oct 23, 2026

Double shell DoubleShell DS84i vs Keychron J1

Get the Double shell DoubleShell DS84i for knob. Get the Keychron J1 for qmk and via.

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.

Double shell DoubleShell DS84i

Keychron J1

  • Switch options

    Linear, Tactile

    Clicky, Linear, Tactile

  • Knob

    Yes

    No

  • Weight

    798 g

    661 g

  • QMK

    No

    Yes

  • VIA

    No

    Yes

KeebFinder scores

How we score
  • Double shell DoubleShell DS84i
  • Keychron J1
Performance
62
82
Build quality
40
71
Productivity
59
89
Customizability
59
86
Portability
74
80

What they share

  • Layout size: 75%
  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Low profile
  • Keycaps: PBT
See every spec side by side

From real owners

What owners say

Ratings and quotes collected from verified store reviews, including the critical ones.

Double shell DoubleShell DS84i

No owner reviews collected yet.

Keychron J1

3.0

5 owner reviews

Praise
“I like everything about this keyboard: the keys, their profile, the typing sound of the banana switch, the shape of the keyboard itself, and its size. There are no battery issues either; it holds a charge surprisingly long, and I don't remember the last time…”
Maks B.· via Keychron
Critique
“Almost perfect keyboard for me, low profile, etc., but battery dies too fast, i'd say 2-3 days max. and when it dies it does not reconnect when charging cable is plugged in, you have to toggle wired mode, plug in the cable and then toggle wireless mode for it…”
TadasVerified buyer· via Keychron

Full specs

Double shell DoubleShell DS84i vs Keychron J1 specs

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

10 of 24 specs differ

Double shell DoubleShell DS84i

Keychron J1

Typing & switches

Switch options

Linear, Tactile
Clicky, Linear, Tactile

Hot-swappable

Yes
Yes

Low profile

Yes
Yes

Sound dampening

No
Yes

Layout

Layout size

75%
75%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
No

Display

None
None

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Bluetooth, 2.4 GHz, Wired

Max polling rate

—
1,000 Hz

Battery

—
2,000 mAh

USB-C

Yes
Yes

Build & materials

Case material

—
ABS

Keycaps

PBT
PBT

Weight

798 g
661 g

Dimensions

25 x 153 x 314 mm
23 x 327 x 144 mm

Typing angle

—
19°

Backlight

RGB
RGB, north-facing

Firmware & software

QMK

No
Yes

VIA

No
Yes

N-key rollover

Yes
Yes

Mac & Windows

No
Yes

Extras

Released

2023
2025

Where to buy

Compare prices

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

Lowest price across stores, Amazon excluded.

  • MechkeysCN

    In stock
    $99Visit
  • AmazonGlobal

    Check price
    ~$99Visit
Keychron J13 stores
  • KeychronHK

    In stock
    $59Visit
  • Keychron (DE)DE

    In stock
    $105Visit
  • AmazonGlobal

    Check price
    Visit

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