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Head to head · Prices checked Oct 29, 2026

Ajazz AK870 vs Cidoo Nebula

Get the Ajazz AK870 for the 4,000 mAh battery. Get the Cidoo Nebula for via.

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Quick verdict

Which one should you get?

Get the

Ajazz AK870

Battery

Build quality in the bottom 40% of 80% boards under $100.

Rules this board out

  • South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
  • No numpad.

Get the

Cidoo Nebula

VIA

Build quality in the bottom 45% of 65% boards under $100.

Rules this board out

  • 65% layout. No function row and no numpad.

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.

Ajazz AK870

Cidoo Nebula

  • Layout size

    80%

    65%

  • Battery

    4,000 mAh

    3,000 mAh

    A larger battery means fewer cables during the day

  • Display

    TFT

    None

    A case display rather than a typing feature

  • Weight

    970 g

    457 g

    Heavier boards stay planted and lighter ones travel

  • VIA

    No

    Yes

    GUI remapping without compiling firmware

KeebFinder scores

How we score
  • Ajazz AK870
  • Cidoo Nebula
Performance
51
48
Build quality
55
63
Productivity
83
74
Customizability
73
85
Portability
73
88

What they share

  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Case material: ABS
  • Mount style: Gasket Mount
  • Knob
See every spec side by side

From real owners

What owners say

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

Ajazz AK870

4.8

5 owner reviews

Praise
“I love this keyboard. The sound is slightly clicky and mostly creamy. Super smooth to work on. I’ve also set up the RGB to match my PC ones.”
LaureVerified buyer· via Epomaker

Cidoo Nebula

3.4

48 owner reviews

Praise
“Overly happy! the material is really good and the keyboard is way beyond expectations. One of the best company and support ive seen!”
Lumia M.Verified buyer· via Epomaker
Critique
“The keyboard itself is lovely but one of the key isn't working at all and the key next to it also doesn't work when pressed normally, you have to hit it hard...”
Seo L.Verified buyer· via Epomaker

Full specs

Ajazz AK870 vs Cidoo Nebula specs

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

9 of 20 specs differ

Ajazz AK870

Cidoo Nebula

Typing & switches

Switch options

Linear
—

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Gasket Mount

Sound dampening

Yes
No

Layout

Layout size

80%
65%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
Yes

Display

TFT
None

Connectivity & battery

Connection

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

Battery

4,000 mAhBetter
3,000 mAh

USB-C

Yes
Yes

Build & materials

Case material

ABS
ABS

Keycaps

PBT
—

Weight

970 g
457 g

Dimensions

21 x 370 x 148 mm
35 x 120 x 325 mm

Backlight

RGB, south-facing
RGB

Firmware & software

VIA

No
Yes

Mac & Windows

Yes
Yes

Extras

Released

2024
2023

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.

Ajazz AK8703 stores
Cidoo Nebula2 stores

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