Head to head · Prices checked Nov 11, 2026

Jamesdonkey S2 vs Keychron B3 Pro

Get the Jamesdonkey S2 for the 3,000 mAh battery.

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Battery

from$95at WhatGeek

from$34at Keychron

Quick verdict

Which one should you get?

Get the

Jamesdonkey S2

Battery

Build quality in the bottom 30% of 96% boards under $100.

Rules this board out

Switches are soldered. Swapping them means soldering.
Low-profile switches and keycaps only. Standard MX keycaps will not fit.
Compact full-size layout. The numpad is present, the gaps of a full-size board are not.

$95 at WhatGeek

Get the

Keychron B3 Pro

Build quality in the bottom 5% of 75% boards under $50.

Rules this board out

Switches are soldered. Swapping them means soldering.
Low-profile switches and keycaps only. Standard MX keycaps will not fit.
No numpad.

$34 at Keychron

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.

Jamesdonkey S2

Keychron B3 Pro

Layout size
96%
75%
Battery
3,000 mAh
1,200 mAh
A larger battery means fewer cables during the day
Case material
Aluminum
ABS
Switch options
Tactile
Clicky, Linear, Tactile
Weight
600 g
410 g
Heavier boards stay planted and lighter ones travel

KeebFinder scores

How we score

Jamesdonkey S2
Keychron B3 Pro

Performance: 51
50
Build quality: 55
43
Productivity: 60
70
Customizability: 46
47
Portability: 49
79

What they share

Connection: Bluetooth, 2.4 GHz, Wired
Low profile

See every spec side by side

Full specs

Jamesdonkey S2 vs Keychron B3 Pro specs

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

11 of 20 specs differ

Spec

Jamesdonkey S2

Keychron B3 Pro

Typing & switches

Switch options

Tactile

Clicky, Linear, Tactile

Low profile

Yes

Sound dampening

Yes

Layout

Layout size

96%

75%

Layout standard

ANSI

Ergonomics

Standard

Display

None

Media keys

Yes

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired

Max polling rate

—

1,000 Hz

Battery

3,000 mAhBetter

1,200 mAh

USB-C

Yes

Build & materials

Case material

Aluminum

ABS

Keycaps

PBT

ABS

Weight

600 g

410 g

Dimensions

—

3 x 100 x 380 mm

Typing angle

—

3°

Backlight

White

None

Firmware & software

Mac & Windows

Yes

Extras

Released

2023

2025

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.

Jamesdonkey S22 stores