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Compare Cidoo Nebula vs Yunzii YZ21 Differences Side by Side

This comparison is for users deciding between a complete compact keyboard and a standalone numeric keypad. The Cidoo Nebula is a 65% DIY kit, while the Yunzii YZ21 is a pre-built numpad. The decision hinges on whether you need a full typing solution or a supplementary accessory for data entry. Both offer hot-swappable switches and wireless connectivity, but their core purposes are fundamentally different.

73
CIDOO Nebula VIA Keyboard Kit
62
YUNZII YZ21 Macaron Hot Swappable Mechanical Numeric Keypad Num Pad

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3.4 (48)
0.0 (0)
  • Released in 2023
  • Available in a 65% layout
  • Comes with a knob
  • Connects via USB-C
  • Supports VIA configuration
  • Uses a Gasket Mount mounting style
  • Equipped with a 3000 mAh battery
  • Weighs about 457 g
  • Sized at 35 x 120 x 325 mm
  • Made with a ABS case
  • Offers Yes, Rgb RGB lighting
  • Released in 2022
  • Has Clicky, Tactile, Linear switch options
  • Available in a Numpad layout
  • Features N-key rollover
  • Equipped with a 1500 mAh battery
  • Features PBT keycaps
  • Offers Yes, Rgb, North-face, Rgb North-face RGB lighting
Scores
  • Performance: 47.9
  • Build Quality: 63
  • Productivity: 73.5
  • Customizability: 85.2
  • Portability: 88.2
Scores
  • Performance: 72
  • Build Quality: 52.9
  • Productivity: 57.2
  • Customizability: 69.6
  • Portability: 85.6
Name
Cidoo Nebula
Name
Yunzii YZ21
Release year
2023
Release year
2022
Switch Options
-
Switch Options
Clicky, Tactile, Linear
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
65%
Layout Size
Numpad
Layout Standard
ANSI
Layout Standard
ANSI
Layout Ergonomics
Normal
Layout Ergonomics
Normal
Knob Support
 
Knob Support
 
Display Support
 
Display Support
 
Mac/Win Support
 
Mac/Win Support
 
Multi-Media Keys
 
Multi-Media Keys
 
USB-C
 
USB-C
 
USB passthrough
 
USB passthrough
 
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate
-
Polling Rate
-
Battery capacity
3000 mAh
Battery capacity
1500 mAh
Hall Effect Support
 
Hall Effect Support
 
QMK Support
 
QMK Support
 
VIA Support
 
VIA Support
 
VIAL Support
 
VIAL Support
 
N-Key Rollover
 
N-Key Rollover
 
Rapid Trigger
 
Rapid Trigger
 
Mount Style
Gasket Mount
Mount Style
-
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb
Backlight
 
Rgb, North-face
Case Colors
Case Colors
Case Material
ABS
Case Material
-
Keycaps Material
-
Keycaps Material
PBT
Dimensions
35 x 120 x 325 mm
Dimensions
-
Weight
457g
Weight
-
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Pros and Trade-offs

Select the Cidoo Nebula if you want a versatile, compact primary keyboard that you can build and modify extensively. Choose the Yunzii YZ21 if you already have a keyboard but need a dedicated, programmable numpad for data entry or creative software shortcuts. They are designed for different roles, making this a decision about your setup's core component versus a peripheral addition.

Cidoo Nebula

  • +Sold as a customizable DIY kit with gasket mount structure.
  • +Includes Poron sandwich cotton and IXPE undershaft padding for sound and feel.
  • +Full VIA programming support for key remapping and macros.
  • +Larger 3000mAh battery for extended wireless use.
  • +Features a volume control knob and compact 65% layout.
  • −Case is made of ABS plastic, which may be less premium than other materials.
  • −Requires purchasing switches and keycaps separately as it is a barebones kit.
  • −No user reviews or details are provided about its included stabilizers or switch plate.

Yunzii YZ21

  • +Pre-built and ready to use out of the box with switches and keycaps included.
  • +Comes with PBT dye-sublimation keycaps, which are often more durable than ABS.
  • +Vendor description mentions custom software for RGB effects and macro setting.
  • +Offers N-key rollover (NKRO) for accurate simultaneous key presses.
  • +Functions as a dedicated wireless numpad for laptops or compact keyboards.
  • −Smaller 1500mAh battery compared to the Nebula.
  • −Lacks detailed information on mounting style or internal construction for modding.
  • −Is a niche accessory, not a standalone keyboard for general typing.

Which Keyboard Is Better for Your Needs?

The Cidoo Nebula wins for primary use cases like gaming, programming, and travel due to its complete 65% layout and DIY kit design. The Yunzii YZ21 excels as a dedicated accessory for office data entry or content creation macros. For modding, the Nebula's kit format provides a clear advantage. Your choice is primarily defined by whether you need a main keyboard or a supplementary tool.

GamingCidoo Nebula
  • •The Cidoo Nebula's 65% layout provides essential gaming keys like arrows and modifiers.
  • •Its gasket mount structure with Poron and IXPE padding, as described by the vendor, may offer a more comfortable typing experience for long sessions.
  • •The Yunzii YZ21 is a numpad and lacks alphanumeric keys required for most games.
OfficeTie
  • •The Cidoo Nebula offers a space-saving 65% layout with full VIA programming for macros.
  • •The Yunzii YZ21 is specifically designed for office data entry, adding a numpad to any keyboard.
  • •Both support wireless connectivity for a clean desk setup.
ProgrammingCidoo Nebula
  • •The Cidoo Nebula's 65% layout includes alphanumeric keys, arrows, and a programmable knob for media control.
  • •Full VIA programming support allows deep customization of layers and key functions.
  • •The Yunzii YZ21 lacks the primary keys needed for coding.
TravelCidoo Nebula
  • •The Cidoo Nebula is a complete, compact keyboard at 325x120x35mm.
  • •Its larger 3000mAh battery promises longer wireless use between charges.
  • •While the YZ21 is small, it is only an accessory and not a functional keyboard on its own.
ModdingCidoo Nebula
  • •The Cidoo Nebula is sold as a DIY kit, designed for customization from the ground up.
  • •It features a gasket mount, Poron sandwich cotton padding, and IXPE undershaft padding for modders.
  • •Both are hot-swappable, but the Nebula's kit format offers more foundational modding potential.
Content CreationYunzii YZ21
  • •The Yunzii YZ21 vendor page mentions fully programmable RGB and macro functions useful for shortcut-heavy software.
  • •As a dedicated numpad, it can be mapped to application-specific shortcuts in programs like Photoshop or Premiere.
  • •The Cidoo Nebula is a better general-purpose keyboard but lacks the dedicated, separate key cluster of the YZ21.

Frequently Asked Questions (FAQ)

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