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Head to head · Prices checked Oct 21, 2026

Double shell DoubleShell DS84i vs Keychron K3 Ultra

Get the Double shell DoubleShell DS84i for knob. Get the Keychron K3 Ultra 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 K3 Ultra

  • Switch options

    Linear, Tactile

    Clicky, Linear, Tactile

  • Knob

    Yes

    No

  • QMK

    No

    Yes

  • VIA

    No

    Yes

  • Sound dampening

    No

    Yes

KeebFinder scores

How we score
  • Double shell DoubleShell DS84i
  • Keychron K3 Ultra
Performance
62
86
Build quality
40
76
Productivity
59
88
Customizability
59
86
Portability
74
82

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 K3 Ultra

2.8

6 owner reviews

Praise
“I bought this keyboard to test for work. I love how sturdy it feels, the wood aspects make it feel premium as well. I opted for the banana switches, they do not disturb my colleagues and it feels great for everyday tasks. The battery also seems to hold out…”
Miroslav C.Verified buyer· via Keychron
Critique
“Meh. I dont like the wood grain and they make it difficult to return or exchange”
Magda V.Verified buyer· via Keychron

Full specs

Double shell DoubleShell DS84i vs Keychron K3 Ultra specs

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

10 of 25 specs differ

Double shell DoubleShell DS84i

Keychron K3 Ultra

Typing & switches

Switch options

Linear, Tactile
Clicky, Linear, Tactile

Hot-swappable

Yes
Yes

Mount style

—
Plate Mount

Low profile

Yes
Yes

Sound dampening

No
Yes

Layout

Layout size

75%
75%

Layout standard

ANSI
ANSI, ISO

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

—
8,000 Hz

Battery

—
2,600 mAh

USB-C

Yes
Yes

Build & materials

Case material

—
ABS, Wood

Plate material

—
Aluminum

Keycaps

PBT
PBT

Weight

798 g
—

Dimensions

25 x 153 x 314 mm
—

Backlight

RGB
RGB, north-facing

Firmware & software

QMK

No
Yes

VIA

No
Yes

N-key rollover

Yes
No

Mac & Windows

No
Yes

Extras

Released

2023
2026

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
  • KeychronHK

    In stock
    $109Visit
  • MKUS

    In stock
    $109Visit
  • Keychron (DE)DE

    In stock
    $140Visit
  • AmazonGlobal

    Check price
    Visit

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