Ajazz AK820 Max vs AULA S75 Pro: Hall Effect vs High Polling Rate

Compare Ajazz AK820 Max vs AULA S75 Pro Differences Side by Side

This comparison is for buyers deciding between two feature-packed 75% wireless keyboards at a similar price. The choice is difficult because both offer tri-mode connectivity, gasket mounts, hot-swappable PCBs, screens, and sound-dampening foam. The Ajazz AK820 Max introduces Hall Effect magnetic switches, while the AULA S75 Pro specifies a 4000Hz polling rate and screw-in stabilizers, making the decision a trade-off between cutting-edge switch technology and high-performance wired specs.

Model
Rating	4.3 stars (16 reviews)	0.0 stars (0 reviews)
Purchase Options
Main differences	Released in 2024 Has Magnetic, Linear switch options Includes a Yes, TFT display Utilizes Hall effect sensors Weighs about 850 g Sized at 20 x 333 x 143 mm Made with a ABS, PBT case	Released in 2025 Has Linear switch options Includes a Yes, LCD display Features N-key rollover Includes screw-in stabilizers Runs at a 4000 Hz polling rate Weighs about 1000 g Sized at 43 x 333 x 147 mm
Score	Scores Performance: 57.8 Build Quality: 55 Productivity: 83.7 Customizability: 73.6 Portability: 80.4	Scores Performance: 85.5 Build Quality: 75.8 Productivity: 91.2 Customizability: 78.8 Portability: 80.6
Name	Name Ajazz AK820 Max	Name AULA S75 Pro
Release year	Release year 2024	Release year 2025
Switch Options	Switch Options Magnetic, 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 LCD
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 4000 Hz
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	Backlight Rgb
Case Colors	Case Colors	Case Colors
Case Material	Case Material ABS, PBT	Case Material -
Keycaps Material	Keycaps Material PBT	Keycaps Material PBT
Dimensions	Dimensions 20 x 333 x 143 mm	Dimensions 43 x 333 x 147 mm
Weight	Weight 850g	Weight 1000g

Ajazz AK820 Max Magnetic Switch Mechanical Keyboard

AULA S75 PRO Tri-mode Wireless Mechanical Keyboard with LCD Screen Creamy

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4.3 stars (16 reviews)

0.0 stars (0 reviews)

Released in 2024
Has Magnetic, Linear switch options
Includes a Yes, TFT display
Utilizes Hall effect sensors
Weighs about 850 g
Sized at 20 x 333 x 143 mm
Made with a ABS, PBT case

Released in 2025
Has Linear switch options
Includes a Yes, LCD display
Features N-key rollover
Includes screw-in stabilizers
Runs at a 4000 Hz polling rate
Weighs about 1000 g
Sized at 43 x 333 x 147 mm

Scores

Performance: 57.8
Build Quality: 55
Productivity: 83.7
Customizability: 73.6
Portability: 80.4

Scores

Performance: 85.5
Build Quality: 75.8
Productivity: 91.2
Customizability: 78.8
Portability: 80.6

Name

Ajazz AK820 Max

Name

AULA S75 Pro

Release year

2024

Release year

2025

Switch Options

Magnetic, 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

LCD

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

4000 Hz

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

Backlight

Rgb

Case Colors

Case Material

ABS, PBT

Case Material

Keycaps Material

PBT

Keycaps Material

PBT

Dimensions

20 x 333 x 143 mm

Dimensions

43 x 333 x 147 mm

Weight

850g

Weight

1000g

Pros and Trade-offs

Your primary use case should guide your choice. If you are a competitive gamer who primarily uses a wired connection and values a high polling rate, the AULA S75 Pro is the more grounded option. If you are an enthusiast interested in the latest switch technology, plan to mod your keyboard extensively, or need a slightly more portable option, the Ajazz AK820 Max and its Hall Effect switches present a compelling alternative. Both are competent all-rounders, but their specialized features cater to different priorities.

Ajazz AK820 Max

+Features Hall Effect magnetic switches for adjustable actuation and durability.
+Lighter weight (850g) may be preferable for portability.
+Detailed sound-dampening construction with silicone, cotton, and IXPE layers.
+Includes a flex-cut FR4 plate for a specific typing feel.
+South-facing RGB lighting avoids interference with Cherry-profile keycaps.

−User reviews report noticeable input lag during wireless gaming.
−Uses plate-mounted stabilizers, which are typically less favored by modders than screw-in types.
−Case material is listed as ABS, which may feel less premium than aluminum alternatives.

AULA S75 Pro

+Specifies a 4000Hz polling rate for high-performance wired use.
+Includes screw-in stabilizers, which often provide a more stable and rattle-free feel.
+Vendor description claims console compatibility (PlayStation, Xbox).
+Software allows for per-key macro programming.
+Features a 1.14-inch LCD screen capable of displaying GIFs and system info.

−Heavier at 1000g, which reduces portability.
−No reviews are available from the aggregated metadata, making real-world performance less certain.
−Does not offer Hall Effect or magnetic switch options.

Which Keyboard Is Better for Your Needs?

The AULA S75 Pro takes a slight lead for gaming due to its specified high polling rate and console support, and for content creation with its macro software and animated LCD. The Ajazz AK820 Max is the better choice for travel due to its lower weight and for modders interested in Hall Effect technology. For office work and programming, the keyboards are evenly matched, offering the same core wireless functionality and layout.

GamingAULA S75 Pro

•The AULA S75 Pro lists a 4000Hz polling rate for potentially lower latency in wired mode.
•Its vendor description mentions compatibility with PlayStation and Xbox consoles.
•The Ajazz AK820 Max has user reviews citing noticeable input lag in wireless gaming modes.

OfficeTie

•Both offer tri-mode wireless connectivity (Bluetooth, 2.4GHz, wired) for multi-device use.
•Both have compact 75% layouts to save desk space.
•Both include a knob for media control and adjustable typing angles via footrests.

ProgrammingTie

•Both use a 75% ANSI layout with dedicated arrow keys.
•Both are hot-swappable, allowing for easy switch customization for preferred actuation.
•Both have PBT keycaps for durability during long typing sessions.

TravelAjazz AK820 Max

•The Ajazz AK820 Max is lighter at 850g (770g per vendor) compared to the AULA S75 Pro's 1000g.
•Both have the same 4000mAh battery capacity for similar wireless endurance.
•Their dimensions are nearly identical, making portability comparable.

ModdingAjazz AK820 Max

•The Ajazz AK820 Max features Hall Effect magnetic switches, which are hot-swappable and offer unique customization via actuation point adjustment.
•Its vendor description details a specific sound-dampening stack: a silicone base layer, two cotton layers, and an IXPE switch pad.
•The AULA S75 Pro also has a hot-swappable PCB and mentions five layers of sound-dampening foam, but lacks the Hall Effect switch option.

Content CreationAULA S75 Pro

•The AULA S75 Pro's vendor description states its software allows for macro customization on each key, useful for shortcuts.
•Its LCD screen can display GIF animations and system info, which may be preferable for stream setups.
•Both have south-facing RGB lighting, but the AULA's description emphasizes side lighting for an immersive vibe.

Frequently Asked Questions (FAQ)