Ajazz AK820 Pro vs Redragon K673 Pro: Screen vs Weight Comparison

Compare Ajazz AK820 Pro vs Redragon UCAL K673 Pro Differences Side by Side

This comparison is for buyers deciding between two popular, similarly priced 75% wireless mechanical keyboards. The choice is difficult because both offer gasket mounts, hot-swap sockets, and triple-mode connectivity. The Ajazz AK820 Pro introduces a customizable TFT screen and a lighter, partially aluminum build, while the Redragon K673 Pro opts for a heavier, all-plastic construction with a focus on sound dampening. Your decision hinges on whether you value interactive features and portability or a heftier feel.

Model
Rating	4.6 stars (737 reviews)	0.0 stars (0 reviews)
Purchase Options
Main differences	Includes a Yes, TFT display Compatible with both Mac and Windows Features N-key rollover Weighs about 810 g Sized at 40 x 327 x 136 mm Made with a ABS, Aluminum case Offers Yes, Rgb, South-face, Rgb South-face RGB lighting	Includes a No display Weighs about 1200 g Sized at 37 x 335 x 37 mm Made with a Plastic case Offers Yes, Rgb RGB lighting
Score	Scores Performance: 60.5 Build Quality: 66.2 Productivity: 82.2 Customizability: 72.5 Portability: 79.2	Scores Performance: 65.2 Build Quality: 63.1 Productivity: 69.6 Customizability: 58.7 Portability: 75.7
Name	Name Ajazz AK820 Pro	Name Redragon UCAL K673 Pro
Release year	Release year 2023	Release year 2023
Switch Options	Switch Options Linear	Switch Options Linear
Profile	Profile Normal Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 75%	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 TFT	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 Bluetooth, 2.4 GHz, Wired, Wireless	Connection Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate	Polling Rate -	Polling Rate -
Battery capacity	Battery capacity 4000 mAh	Battery capacity 4000 mAh
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 ABS, Aluminum	Case Material Plastic
Keycaps Material	Keycaps Material PBT	Keycaps Material PBT
Dimensions	Dimensions 40 x 327 x 136 mm	Dimensions 37 x 335 x 37 mm
Weight	Weight 810g	Weight 1200g

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4.6 stars (737 reviews)

0.0 stars (0 reviews)

Includes a Yes, TFT display
Compatible with both Mac and Windows
Features N-key rollover
Weighs about 810 g
Sized at 40 x 327 x 136 mm
Made with a ABS, Aluminum case
Offers Yes, Rgb, South-face, Rgb South-face RGB lighting

Includes a No display
Weighs about 1200 g
Sized at 37 x 335 x 37 mm
Made with a Plastic case
Offers Yes, Rgb RGB lighting

Scores

Performance: 60.5
Build Quality: 66.2
Productivity: 82.2
Customizability: 72.5
Portability: 79.2

Scores

Performance: 65.2
Build Quality: 63.1
Productivity: 69.6
Customizability: 58.7
Portability: 75.7

Name

Ajazz AK820 Pro

Name

Redragon UCAL K673 Pro

Release year

2023

Release year

2023

Switch Options

Linear

Switch Options

Linear

Profile

Normal Profile

Profile

Normal Profile

Hot Swappable

Layout Size

75%

Layout Size

75%

Layout Standard

ANSI

Layout Standard

ANSI

Layout Ergonomics

Normal

Layout Ergonomics

Normal

Knob Support

Display Support

TFT

Display Support

Mac/Win Support

Multi-Media Keys

USB-C

USB passthrough

Connection

Bluetooth, 2.4 GHz, Wired, Wireless

Connection

Bluetooth, 2.4 GHz, Wired, Wireless

Polling Rate

Battery capacity

4000 mAh

Battery capacity

4000 mAh

Hall Effect Support

QMK Support

VIA Support

VIAL Support

N-Key Rollover

Rapid Trigger

Mount Style

Gasket Mount

Mount Style

Gasket Mount

Screw in Stabilizers

Sound Dampening

Backlight

Rgb, South-face

Backlight

Rgb

Case Colors

Case Material

ABS, Aluminum

Case Material

Plastic

Keycaps Material

PBT

Keycaps Material

PBT

Dimensions

40 x 327 x 136 mm

Dimensions

37 x 335 x 37 mm

Weight

810g

Weight

1200g

Pros and Trade-offs

For most users, the Ajazz AK820 Pro is the recommended choice. It offers more features for a similar price, including the unique TFT screen, a lighter and more portable design, and better-specified wireless performance. Only consider the Redragon UCAL K673 Pro if you specifically prefer a much heavier keyboard and do not value the screen or the latest Bluetooth version.

Ajazz AK820 Pro

+Features a 0.85-inch customizable TFT screen for system info and controls.
+Lighter weight (810g) and an aluminum/ABS composite case construction.
+Specifies a 1k polling rate in wired/2.4G modes and Bluetooth 5.1 connectivity.
+Includes flex-cut polycarbonate plate and PCB for a more customized typing feel.
+South-facing RGB LEDs ensure broad keycap compatibility.

−The aluminum/ABS case may not feel as premium as a full metal build to some users.
−Driver software is required for full TFT screen customization, adding a step.
−No user reviews are available from the provided vendor description to corroborate long-term reliability.

Redragon UCAL K673 Pro

+Heavier 1200g build may provide a more stable, substantial feel on the desk.
+Vendor description highlights two 3.5mm sound-absorbing foams for noise reduction.
+Includes spare switches in the box, according to its package contents list.

−Lacks a screen, which is a central feature of its competitor.
−Heavier weight makes it less portable.
−Vendor-listed battery capacity is 3000mAh, lower than the Ajazz's 4000mAh.
−Case material is listed as plastic without mention of aluminum accents.

Which Keyboard Is Better for Your Needs?

The Ajazz AK820 Pro is the more versatile choice, winning in most categories due to its feature set and lighter design. It is particularly strong for office use, programming, and travel because of its screen, explicit OS support, and lower weight. For gaming, its specified polling rate and N-Key Rollover give it an edge. The two keyboards tie for content creation, as both provide a useful control knob. The Redragon K673 Pro's heavier build did not provide a decisive advantage in any specific use case over the Ajazz's features.

GamingAjazz AK820 Pro

•The Ajazz AK820 Pro lists N-Key Rollover support, which is beneficial for gaming.
•Its vendor page specifies a 1k polling rate in wired and 2.4GHz modes for faster response.
•South-facing RGB LEDs allow for better keycap compatibility, which is useful for aftermarket gaming keycap sets.

OfficeAjazz AK820 Pro

•The Ajazz AK820 Pro includes explicit Mac/Win support and a TFT screen for easy OS switching and status checks.
•It is significantly lighter at 810g, making it easier to move around a desk or between workspaces.
•Its vendor description highlights Bluetooth 5.1 for efficient power saving during long work sessions.

ProgrammingAjazz AK820 Pro

•The 75% layout on the Ajazz AK820 Pro retains function keys without an FN combo, according to its vendor page.
•The TFT screen can display system info or be customized, potentially useful for workflow monitoring.
•Hot-swappable 3/5-pin sockets allow for easy switch changes to suit typing preferences.

TravelAjazz AK820 Pro

•The Ajazz AK820 Pro is 390g lighter than the Redragon model (810g vs 1200g).
•Its smaller dimensions (40mm height vs 37mm) and lighter weight make it more packable.
•Both have a 4000mAh battery, but the Ajazz's Bluetooth 5.1 may offer better power efficiency on the go.

ModdingAjazz AK820 Pro

•The Ajazz AK820 Pro features a polycarbonate plate and a flex-cut PCB and plate for a more customizable typing feel.
•Its case uses a combination of ABS and aluminum, offering a different material base for modifications.
•South-facing LEDs ensure compatibility with a wider range of aftermarket Cherry-profile keycaps.

Content CreationTie

•Both keyboards include a dedicated control knob for media and volume adjustment.
•Both offer RGB backlighting for personalized setup aesthetics.
•The Ajazz has a screen for visual customization, while the Redragon's vendor page mentions software support for macros, which can aid in editing workflows.

Frequently Asked Questions (FAQ)