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Compare Lofree EH121 vs Yunzii YZ21 Differences Side by Side

This comparison is for users looking to add a standalone mechanical numpad to their setup. The decision is challenging because both the Lofree EH121 and Yunzii YZ21 offer tri-mode connectivity and hot-swap sockets, but they diverge on core features. The EH121 has a unique secondary function as a calculator, while the YZ21 focuses on visual customization with RGB lighting and a larger battery.

Lofree Liquid Foundation Tri-Mode Numpad
62
YUNZII YZ21 Macaron Hot Swappable Mechanical Numeric Keypad Num Pad

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  • Released in 2024
  • Connects via USB-C
  • Uses a Gasket Mount mounting style
  • Equipped with a 950 mAh battery
  • Weighs about 252 g
  • Sized at 39 x 149 x 94 mm
  • Made with a Plastic case
  • Features ABS, PC keycaps
  • Offers No RGB lighting
  • Released in 2022
  • Has Clicky, Tactile, Linear switch options
  • 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: 45.2
  • Build Quality: 59.1
  • Productivity: 60.7
  • Customizability: 50.2
  • Portability: 87.1
Scores
  • Performance: 72
  • Build Quality: 52.9
  • Productivity: 57.2
  • Customizability: 69.6
  • Portability: 85.6
Name
Lofree EH121
Name
Yunzii YZ21
Release year
2024
Release year
2022
Switch Options
-
Switch Options
Clicky, Tactile, Linear
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
Numpad
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
950 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
 
Backlight
 
Rgb, North-face
Case Colors
Case Colors
Case Material
Plastic
Case Material
-
Keycaps Material
ABS, PC
Keycaps Material
PBT
Dimensions
39 x 149 x 94 mm
Dimensions
-
Weight
252g
Weight
-
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Pros and Trade-offs

Your primary need dictates the choice. If a built-in calculator and a lighter, more portable device are your priorities, the Lofree EH121 is the better option. If you value visual customization, longer battery life, and deeper software control for macros and lighting, the Yunzii YZ21 is the stronger pick, often at a lower price point.

Lofree EH121

  • +Unique dual function as a numeric keypad and a calculator.
  • +Lighter weight of 252g for better portability.
  • +Gasket mount structure for a softer, more flexible typing feel.
  • +Includes a 2.4GHz receiver in the box.
  • −Smaller 950mAh battery capacity.
  • −Lacks RGB lighting, featuring only a single-color adjustable backlight.
  • −Keycaps are ABS/PC blend, which may develop shine faster than PBT.

Yunzii YZ21

  • +Fully programmable RGB lighting with custom software support.
  • +Larger 1500mAh battery for extended wireless use.
  • +Comes with durable PBT dye-sublimation keycaps.
  • +Offers a choice of five Gateron G Pro switch types.
  • +Explicitly supports N-Key Rollover and macro programming.
  • −No secondary function like a calculator.
  • −Product weight is not specified, which may indicate a heavier build.
  • −The vendor page does not mention including a 2.4GHz receiver, though it supports the mode.

Which Keyboard Is Better for Your Needs?

The Lofree EH121 is the clear choice for office and travel, thanks to its calculator function and lighter weight. The Yunzii YZ21 wins for gaming, modding, and content creation, leveraging its RGB software, macro support, and PBT keycaps. For programming, both are equally viable, leaving the choice to secondary features like battery life or typing feel.

GamingYunzii YZ21
  • •The Yunzii YZ21 listing explicitly mentions N-Key Rollover for anti-ghosting.
  • •It offers programmable macro functionality via custom software, according to the vendor description.
  • •The Lofree EH121 vendor page does not mention N-Key Rollover or macro support for gaming.
OfficeLofree EH121
  • •The Lofree EH121's built-in calculator function is a direct productivity tool for data entry and finance work.
  • •Its single-color backlight is adjustable for low-light use without being distracting in shared spaces.
  • •The gasket mount structure is described as providing a softer, more flexible typing feel for long sessions.
ProgrammingTie
  • •Both are 20-key numpads with hot-swap sockets, allowing for switch customization.
  • •Both offer tri-mode connectivity (Bluetooth, 2.4GHz, wired) for flexible desk setup.
  • •The Yunzii's macro programmability could be useful for coding shortcuts, while the Lofree's calculator might aid in debugging numeric code.
TravelLofree EH121
  • •The Lofree EH121 is lighter at 252g compared to the Yunzii YZ21, which has no specified weight.
  • •Its dual function as a calculator reduces the need to carry a separate device.
  • •Both have similar tri-mode wireless functionality for use on the go.
ModdingYunzii YZ21
  • •The Yunzii YZ21 comes with PBT dye-sublimation keycaps, which are generally more durable and resistant to shine than the ABS/PC blend on the Lofree.
  • •Its vendor description highlights full RGB programmability with custom software for lighting effects.
  • •It offers a choice of five different Gateron G Pro switch types (Red, Blue, Yellow, Brown, Black) out of the box.
Content CreationYunzii YZ21
  • •The Yunzii YZ21's fully programmable RGB lighting can be customized to match a streaming or creative setup's aesthetic.
  • •Macro keys can be programmed for editing software shortcuts.
  • •The larger 1500mAh battery supports longer wireless use during extended creative sessions.

Frequently Asked Questions (FAQ)

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