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Head to head · Prices checked Oct 21, 2026

Epomaker RT100 Pro vs Keychron J3 SE

Get the Epomaker RT100 Pro for the 5,000 mAh battery and knob.

EPOMAKER RT100 Pro

Battery

Epomaker RT100 Pro

4.3 · 12 reviews

from$115at Epomaker

Shop nowSee all prices
Keychron J3 SE QMK Wireless Mechanical Keyboard

Keychron J3 SE

5.0 · 1 reviews

from$129at Keychron

Shop nowSee all prices

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.

Epomaker RT100 Pro

Keychron J3 SE

  • Battery

    5,000 mAh

    4,000 mAh

  • Case material

    ABS, Plastic

    ABS

  • Switch options

    Linear, Silent

    Clicky, Linear, Tactile

  • Knob

    Yes

    No

  • Display

    TFT

    None

KeebFinder scores

How we score
  • Epomaker RT100 Pro
  • Keychron J3 SE
Performance
78
80
Build quality
66
68
Productivity
84
89
Customizability
74
86
Portability
56
57

What they share

  • Layout size: 96%
  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Max polling rate: 1,000 Hz
  • Sound dampening
  • 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.

Epomaker RT100 Pro

4.3

12 owner reviews

Praise
“I love my new keyboard. It is as quiet as advertised and I’m very pleased with the overall performance of the keyboard!”
Jean P.Verified buyer· via Epomaker
Critique
“I have no way through the software to keep the keyboard on for more than a minute. And randomly throughout typing or gaming the keys become unresponsive. Id expect that out of a 20$ keyboard. But this was a 100$ purchase, very dissapointing”
CJVerified buyer· via Epomaker

Keychron J3 SE

5.0

1 owner reviews

Praise
“I love the keyboard! Everything was as expected but the keys are even smoother than I could have hoped for. I love the color, it matches exactly what was displayed on the website. Setup was very easy once I actually read the manual. I like that it gives you…”
Nathalia N.· via Keychron

Full specs

Epomaker RT100 Pro vs Keychron J3 SE specs

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

10 of 25 specs differ

Epomaker RT100 Pro

Keychron J3 SE

Typing & switches

Switch options

Linear, Silent
Clicky, Linear, Tactile

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
—

Sound dampening

Yes
Yes

Layout

Layout size

96%
96%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
No

Display

TFT
None

Connectivity & battery

Connection

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

Max polling rate

1,000 Hz
1,000 Hz

Battery

5,000 mAhBetter
4,000 mAh

USB-C

Yes
Yes

Build & materials

Case material

ABS, Plastic
ABS

Plate material

Polycarbonate
—

Keycaps

PBT
PBT

Weight

1,300 g
1,145 g

Dimensions

45 x 433 x 142 mm
43 x 406 x 139 mm

Typing angle

6°
—

Backlight

RGB, south-facing
RGB, north-facing

Firmware & software

QMK

No
Yes

VIA

No
Yes

N-key rollover

Yes
Yes

Mac & Windows

Yes
Yes

Extras

Released

2026
2026

Where to buy

Compare prices

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

Lowest price across stores, Amazon excluded.

  • EpomakerUS

    In stock
    $115Visit
  • AmazonGlobal

    Check price
    Visit
  • KeychronHK

    In stock
    $129Visit
  • AmazonGlobal

    Check price
    Visit

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