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Head to head · Prices checked Nov 12, 2026

Double shell DS102i vs Keychron K3 Ultra

Get the Keychron K3 Ultra for hot-swappable and qmk.

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Quick verdict

Which one should you get?

Get the

Double shell DS102i

Build quality in the bottom 5% of 100% boards under $150.

Rules this board out

  • Switches are soldered. Swapping them means soldering.
  • Low-profile switches and keycaps only. Standard MX keycaps will not fit.
  • No ISO layout. ISO-DE, UK, and other ISO variants are not offered.
$119 at Mechkeys

Get the

Keychron K3 Ultra

Hot-swappable

Build quality in the top 30% of 75% boards under $150.

Rules this board out

  • Low-profile switches and keycaps only. Standard MX keycaps will not fit.
  • North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
  • No numpad.
$109 at MK

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 DS102i

Keychron K3 Ultra

  • Layout size

    100%

    75%

  • Hot-swappable

    No

    Yes

    Switch changes without soldering

  • Case material

    Aluminum

    ABS, Wood

  • Switch options

    Linear, Tactile

    Clicky, Linear, Tactile

  • QMK

    No

    Yes

    The deep option when you want to remap every key

KeebFinder scores

How we score
  • Double shell DS102i
  • Keychron K3 Ultra
Performance
46
86
Build quality
41
75
Productivity
50
89
Customizability
50
86
Portability
48
82

What they share

  • Connection: Bluetooth, 2.4 GHz, Wired
  • Low profile
  • Keycaps: PBT
See every spec side by side

Full specs

Double shell DS102i vs Keychron K3 Ultra specs

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

11 of 21 specs differ

Double shell DS102i

Keychron K3 Ultra

Typing & switches

Switch options

Linear, Tactile
Clicky, Linear, Tactile

Hot-swappable

No
Yes

Mount style

—
Plate Mount

Low profile

Yes
Yes

Sound dampening

No
Yes

Layout

Layout size

100%
75%

Layout standard

ANSI
ANSI, ISO

Ergonomics

Standard
Standard

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

No
Yes

Build & materials

Case material

Aluminum
ABS, Wood

Plate material

—
Aluminum

Keycaps

PBT
PBT

Backlight

RGB
RGB, north-facing

Firmware & software

QMK

No
Yes

VIA

No
Yes

Mac & Windows

Yes
Yes

Extras

Released

2023
2026

Where to buy

Compare prices

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

Prices in USD are converted to your currency and can change at any time. KeebFinder may earn a commission when you buy through these links, at no extra cost to you.

Lowest price across stores, Amazon excluded.

Double shell DS102i2 stores
Keychron K3 Ultra4 stores

For EU buyers

ISO layouts by store

Which stores sell ISO-DE, UK, and the other regional layouts.

Double shell DS102i

No ISO layout at the stores we track.

Keychron K3 Ultra

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