Compare Redragon OTIIM K729 HE vs UCAL K673 HE Differences Side by Side

This comparison is for buyers deciding between two very similar, budget-friendly Hall effect gaming keyboards from Redragon. The choice is difficult because both share core gaming features like 8000Hz polling, rapid trigger technology, and UltraMag magnetic switches. The decision ultimately hinges on your preferred layout size and the importance of sound dampening versus a more compact form factor.

Model
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Rating	0.0 stars (0 reviews)	0.0 stars (0 reviews)
Purchase Options
Main differences	Available in a 80% layout Weighs about 880 g Sized at 367 x 146 x 41 mm Features PBT keycaps Offers Yes, Rgb, South-face, Rgb South-face RGB lighting	Available in a 75% layout Weighs about 1240 g Sized at 104 x 335 mm Offers Yes, Rgb RGB lighting
Score	Scores Performance: 94.3 Build Quality: 58.9 Productivity: 63.7 Customizability: 50.1 Portability: 52.4	Scores Performance: 94.2 Build Quality: 57.7 Productivity: 63.1 Customizability: 48.9 Portability: 57.9
Name	Name Redragon OTIIM K729 HE	Name Redragon UCAL K673 HE
Release year	Release year 2025	Release year 2025
Switch Options	Switch Options Magnetic	Switch Options Magnetic
Profile	Profile Normal Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 80%	Layout Size 75%
Layout Standard	Layout Standard ANSI	Layout Standard ANSI
Layout Ergonomics	Layout Ergonomics Normal	Layout Ergonomics Normal
Knob Support	Knob Support	Knob Support
Display Support	Display Support	Display Support
Mac/Win Support	Mac/Win Support	Mac/Win Support
Multi-Media Keys	Multi-Media Keys	Multi-Media Keys
USB-C	USB-C	USB-C
USB passthrough	USB passthrough	USB passthrough
Connection	Connection Wired, Wired only	Connection Wired, Wired only
Polling Rate	Polling Rate 8000 Hz	Polling Rate 8000 Hz
Battery capacity	Battery capacity -	Battery capacity -
Hall Effect Support	Hall Effect Support	Hall Effect Support
QMK Support	QMK Support	QMK Support
VIA Support	VIA Support	VIA Support
VIAL Support	VIAL Support	VIAL Support
N-Key Rollover	N-Key Rollover	N-Key Rollover
Rapid Trigger	Rapid Trigger	Rapid Trigger
Mount Style	Mount Style Gasket Mount	Mount Style Gasket Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight Rgb, South-face	Backlight Rgb
Case Colors	Case Colors	Case Colors
Case Material	Case Material Plastic	Case Material Plastic
Keycaps Material	Keycaps Material PBT	Keycaps Material -
Dimensions	Dimensions 367 x 146 x 41 mm	Dimensions 104 x 335 mm
Weight	Weight 880g	Weight 1240g

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Pros and Trade-offs

Your choice depends on layout preference and typing noise. Opt for the Redragon OTIIM K729 HE if you want a more traditional TKL layout for productivity, value quieter typing with its extensive sound dampening, and prefer lighter PBT keycaps. Choose the Redragon UCAL K673 HE if your priority is a more compact keyboard to maximize mouse space for gaming, and you are less concerned about acoustic dampening.

Redragon OTIIM K729 HE

+80% TKL layout with dedicated function row and navigation keys.
+Includes 5-layer noise dampening with PO foam, IXPE foam, PET pad, socket foam, and silicone.
+South-facing RGB lighting for better compatibility with aftermarket keycaps.
+Comes with PBT keycaps for better durability.
+Lighter weight at 880g.

−Not hot-swappable, limiting switch customization.
−Wider footprint (146mm) than the 75% alternative.
−Keycap material is specified, but switch foam details are vendor-specific.

Redragon UCAL K673 HE

+More compact 75% layout saves desk space while keeping a top function row.
+Often available at a slightly lower price point.
+Shares core gaming features: 8000Hz polling, rapid trigger, and UltraMag switches.
+Includes multi-platform web-based driver support according to the vendor.

−Only 2-layer noise dampening compared to the K729's 5-layer system.
−Substantially heavier at 1240g.
−Not hot-swappable.
−Keycap material is not specified in the metadata.

Which Keyboard Is Better for Your Needs?

The keyboards tie for pure gaming performance and modding limitations. The Redragon K729 HE wins for office, programming, and content creation due to its more accessible TKL layout, confirmed PBT keycaps, and superior 5-layer sound dampening. The K673 HE is the pick for travel or maximizing desk space because of its more compact 75% form factor, despite its heavier weight.

GamingTie

•Both feature identical 8000Hz hyper-polling for low latency.
•Both include UltraMag magnetic switches with rapid trigger technology for adjustable actuation.
•Both have a dedicated control knob for media and lighting.

OfficeRedragon OTIIM K729 HE

•The K729's 80% TKL layout retains the function row and navigation cluster for easier access to shortcuts.
•Its 5-layer noise dampening, including PO foam and PET sound pad, makes it quieter for shared spaces.
•It includes PBT keycaps, which are more durable against shine from frequent use.

ProgrammingRedragon OTIIM K729 HE

•The K729's TKL layout provides dedicated arrow keys and a navigation cluster, reducing reliance on function layers.
•PBT keycaps offer better long-term texture for extended typing sessions.
•The more comprehensive sound dampening can reduce fatigue in quiet environments.

TravelRedragon UCAL K673 HE

•The K673 is more compact with a 75% layout, saving desk space in a bag.
•It is significantly heavier (1240g vs 880g), which may provide more stability but is less ideal for frequent transport.
•Its smaller width (104mm vs 146mm) makes it easier to fit on constrained surfaces.

ModdingTie

•Both are listed as pre-built and not hot-swappable, limiting switch replacement.
•Both use gasket mount designs.
•Both include a keycap and switch puller and spare switches in the box.

Content CreationRedragon OTIIM K729 HE

•The dedicated media knob on both is useful, but the K729's TKL layout offers more immediate key access for editing shortcuts.
•South-facing RGB on the K729 ensures compatibility with more aftermarket keycap sets for customization.
•The listed PBT keycaps on the K729 resist shine from frequent use during long editing sessions.