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Compare Ducky One 3 vs Keychron K3 V3 Differences Side by Side

This comparison is for buyers deciding between a classic, full-featured wired keyboard and a modern, ultra-portable wireless model. The Ducky One 3 offers a traditional typing feel with a focus on sound dampening, while the Keychron K3 V3 provides a slimmer profile, Bluetooth connectivity, and advanced firmware support. The decision hinges on whether you prioritize a stationary, acoustically-optimized setup or need the versatility of a low-profile, multi-device wireless keyboard.

71
Ducky One 3 Carbon Black Hotswap Double Shot PBT Mechanical Keyboard
83
Keychron K3 QMK Wireless Mechanical Keyboard (ISO Layout) - Version 3

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  • Released in 2023
  • Has Clicky, Tactile, Linear, Silent switch options
  • Available in a 80% layout
  • Built with the ANSI layout standard
  • Connects via USB-C
  • Has built-in sound dampening
  • Uses a Plate Mount mounting style
  • Supports Wired, Wired only, connectivity
  • Weighs about 627 g
  • Sized at 40 x 335 x 110 mm
  • Made with a Plastic, ABS case
  • Offers Yes, North-face, Rgb, Rgb North-face RGB lighting
  • Released in 2024
  • Has Linear, Tactile, Clicky switch options
  • Features a low-profile design
  • Available in a 75% layout
  • Built with the ANSI, ISO, ISO-UK, ISO-DE, ISO-SW, ISO-Nordic layout standard
  • Supports QMK firmware
  • Supports VIA configuration
  • Uses a Top Mount mounting style
  • Supports Bluetooth, Wired, Wireless connectivity
  • Runs at a 1000 Hz polling rate
  • Equipped with a 1550 mAh battery
  • Weighs about 540 g
  • Sized at 19 x 306 x 116 mm
  • Made with a ABS, Aluminum case
  • Offers Yes, Rgb, White, North-face, Rgb North-face, White North-face RGB lighting
Scores
  • Performance: 75.2
  • Build Quality: 57.9
  • Productivity: 77.4
  • Customizability: 79.2
  • Portability: 57.9
Scores
  • Performance: 81.8
  • Build Quality: 81.7
  • Productivity: 70.2
  • Customizability: 89.8
  • Portability: 75
Name
Ducky One 3
Name
Keychron K3 V3
Release year
2023
Release year
2024
Switch Options
Clicky, Tactile, Linear, Silent
Switch Options
Linear, Tactile, Clicky
Profile
Normal Profile
Profile
Low Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
80%
Layout Size
75%
Layout Standard
ANSI
Layout Standard
ANSI, ISO, ISO-UK, ISO-DE, ISO-SW, ISO-Nordic
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
Wired, Wired only,
Connection
Bluetooth, Wired, Wireless
Polling Rate
-
Polling Rate
1000 Hz
Battery capacity
-
Battery capacity
1550 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
Plate Mount
Mount Style
Top Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
North-face, Rgb
Backlight
 
Rgb, White, North-face
Case Colors
Case Colors
Case Material
Plastic, ABS
Case Material
ABS, Aluminum
Keycaps Material
PBT, ABS
Keycaps Material
PBT, ABS
Dimensions
40 x 335 x 110 mm
Dimensions
19 x 306 x 116 mm
Weight
627g
Weight
540g
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Pros and Trade-offs

Your primary need dictates the choice. If you work at a single desk and value a solid, acoustically-dampened typing feel with premium PBT keycaps, the wired Ducky One 3 is a compelling option. If you need to move between devices, desire a slimmer keyboard for ergonomics or travel, and want deep programmability, the wireless Keychron K3 V3 is the more versatile and modern tool.

Ducky One 3

  • +Includes thick double-shot PBT keycaps in the OEM profile.
  • +Features internal sound dampening with a silicone plate dampener and EVA foam case dampener.
  • +Uses exclusive Kailh yellow hotswap sockets and improved V2 stabilizers.
  • +Offers a detachable braided USB-C cable and three-level adjustable feet.
  • +Available with a wide variety of Cherry MX switch types including silent variants.
  • −Wired-only connectivity limits placement and device switching.
  • −Lacks support for QMK or VIA firmware for advanced reprogramming.
  • −Heavier and thicker (627g, 40mm height) than the Keychron alternative.
  • −The vendor description notes the PCB has north-facing LEDs, which can cause interference with some keycap profiles.

Keychron K3 V3

  • +Offers dual Bluetooth 5.2 and wired connectivity for multi-device use.
  • +Features an ultra-slim low-profile design with a height of just 19mm.
  • +Supports QMK and VIA firmware for extensive key remapping via a web app.
  • +Built with an aluminum frame and multiple acoustic foams (IXPE, EPDM, latex).
  • +Includes specific keycap sets for multiple ISO layouts (UK, German, Swiss, Nordic).
  • −Hot-swap compatibility is limited to specific low-profile mechanical switches only.
  • −The keycaps included are ABS, not PBT, according to the vendor specs.
  • −Battery life is dependent on a 1550mAh battery, requiring periodic charging.
  • −The low-profile keycap and switch ecosystem is more limited than standard MX.

Which Keyboard Is Better for Your Needs?

The Keychron K3 V3 wins in most mobile and tech-focused categories due to its wireless design, low-profile form, and superior programmability. It is the clear choice for travel, office use with multiple devices, and programming. The Ducky One 3, as a wired-only board, finds its strength in stationary setups where its acoustic tuning is a priority. For gaming, the Keychron's specified high polling rate gives it an edge, while content creation is a tie, dependent on preference for layout versus software features.

GamingKeychron K3 V3
  • •The Keychron K3 V3 lists a 1000 Hz polling rate in wired mode for lower latency.
  • •Its lighter weight (540g) and smaller 75% layout free up more desk space for mouse movement.
  • •The Keychron vendor page states its latency is hardly noticeable in competitive games.
OfficeKeychron K3 V3
  • •Bluetooth connectivity allows easy switching between multiple devices like a laptop, phone, and tablet.
  • •The low-profile design and 19mm height are less obtrusive on a desk.
  • •It includes specific keycaps for both macOS and Windows for cross-platform compatibility.
ProgrammingKeychron K3 V3
  • •Native QMK and VIA support allows for deep key remapping and macro programming.
  • •The 75% layout retains arrow and navigation keys while saving space.
  • •The Keychron Launcher web app provides customization without installed software.
TravelKeychron K3 V3
  • •It is significantly thinner (19mm height) and lighter (540g) than the Ducky One 3.
  • •Bluetooth 5.2 wireless operation removes the need for a cable on the go.
  • •The compact 75% layout is more portable than the Ducky's 80% layout.
ModdingKeychron K3 V3
  • •It supports both QMK and VIA firmware for extensive software customization.
  • •The hot-swappable PCB works with low-profile mechanical switches.
  • •The vendor description mentions multiple foam layers (IXPE, EPDM, latex) for acoustic tuning.
Content CreationTie
  • •Both keyboards are hot-swappable, allowing switch customization for preferred feel.
  • •Both offer multimedia keys for controlling media playback.
  • •The Ducky has a larger layout which some may prefer for dedicated macro keys, while the Keychron offers programmable layers via QMK.

Frequently Asked Questions (FAQ)

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Ducky One 3 vs Keychron K3 V3: Wired vs Wireless Low-Profile