Compare GravaStar Mercury K1 vs WOBKEY Rainy HE Pro Differences Side by Side

This comparison is for buyers deciding between a versatile wireless keyboard and a specialized wired gaming board. Both are 75% aluminum gasket-mount keyboards, making the choice difficult. The GravaStar offers tri-mode connectivity and a massive battery, while the WOBKEY focuses on ultra-low latency and advanced magnetic switch features. Your priority between untethered use and cutting-edge gaming specs will determine the winner.

Model
	67	65	Select a keyboard to compare
Rating	0.0 stars (0 reviews)	0.0 stars (0 reviews)
Purchase Options
Main differences	Released in 2024 Has Linear switch options Compatible with both Mac and Windows Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity Equipped with a 8000 mAh battery Weighs about 1080 g Sized at 46 x 343 x 156 mm	Released in 2025 Has Magnetic switch options Utilizes Hall effect sensors Enables rapid trigger functionality Supports Wired, Wired only connectivity Runs at a 8000 Hz polling rate Features PBT, PC keycaps
Score	Scores Performance: 65.6 Build Quality: 67.6 Productivity: 66.7 Customizability: 64.2 Portability: 92.3	Scores Performance: 94.4 Build Quality: 67.5 Productivity: 54.3 Customizability: 58.1 Portability: 63.6
Name	Name GravaStar Mercury K1	Name WOBKEY Rainy HE Pro
Release year	Release year 2024	Release year 2025
Switch Options	Switch Options Linear	Switch Options Magnetic
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	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 Wired, Wired only
Polling Rate	Polling Rate -	Polling Rate 8000 Hz
Battery capacity	Battery capacity 8000 mAh	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	Backlight Rgb
Case Colors	Case Colors	Case Colors
Case Material	Case Material Aluminum	Case Material Aluminum
Keycaps Material	Keycaps Material -	Keycaps Material PBT, PC
Dimensions	Dimensions 46 x 343 x 156 mm	Dimensions -
Weight	Weight 1080g	Weight -

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Pros and Trade-offs

Your choice hinges on connectivity versus performance. For a single-desk, performance-focused setup where every millisecond counts in games, the WOBKEY Rainy HE Pro's wired Hall Effect design is compelling. If you value the freedom to move between devices, need battery life, or have a less stationary workflow, the GravaStar Mercury K1's wireless versatility is the more practical option.

GravaStar Mercury K1

+Tri-mode connectivity with Bluetooth, 2.4 GHz, and wired USB-C.
+Large 8000mAh integrated battery for extended wireless use.
+Aluminum case with a gasket mount and POM plate for a tuned typing feel.
+Hot-swappable sockets support 3-pin and 5-pin switches.
+Includes Mac and Windows support according to its feature list.

−Lacks the high polling rate and advanced switch features of dedicated gaming keyboards.
−At 1080g, it is a heavy keyboard, which may reduce portability despite its wireless design.
−Switch compatibility is limited to the provided Kailh linear switches without mention of magnetic switch support.

WOBKEY Rainy HE Pro

+Features an 8000Hz polling rate for minimal input latency.
+Uses Gateron Jade Pro Magnetic (Hall Effect) switches with adjustable actuation and rapid trigger.
+Built with a carbon fiber plate and double-shot PBT/PC keycaps.
+Includes a patterned stainless steel external weight for stability.
+Non-magnetic steel stabilizers prevent interference with the magnetic switches.

−Wired-only connectivity, with no battery or wireless option.
−Hall Effect switch compatibility is currently limited to specific magnetic switch models like TTC KOM and Gateron Jade Pro.
−Lacks the multi-device flexibility and battery life of wireless alternatives.

Which Keyboard Is Better for Your Needs?

The GravaStar Mercury K1 wins for mobile and multi-device scenarios like office work, travel, and content creation due to its wireless modes and large battery. The WOBKEY Rainy HE Pro is the clear choice for competitive gaming, leveraging its high polling rate and Hall Effect switches. For stationary tasks like programming or modding, the keyboards are evenly matched on core layout and customization features.

GamingWOBKEY Rainy HE Pro

•The WOBKEY Rainy HE Pro has a specified 8000Hz polling rate for faster response.
•It features Hall Effect magnetic switches with adjustable actuation points and rapid trigger technology.
•The manufacturer lists latency as low as 0.125ms.

OfficeGravaStar Mercury K1

•The GravaStar Mercury K1 offers Bluetooth and 2.4 GHz wireless connectivity for a cleaner desk.
•Its 8000mAh battery provides long usage between charges.
•The product listing confirms Mac and Windows support.

ProgrammingTie

•Both keyboards share a 75% ANSI layout, offering similar key accessibility.
•Both are hot-swappable, allowing for switch changes to suit typing preference.
•Both feature gasket mount designs which can affect typing feel.

TravelGravaStar Mercury K1

•The GravaStar Mercury K1 supports wireless operation, eliminating the need for a cable.
•It has a built-in 8000mAh battery for portable use.
•The WOBKEY Rainy HE Pro is wired-only, requiring a constant USB-C connection.

ModdingTie

•Both keyboards are confirmed to have hot-swappable sockets.
•Both use a gasket mount design, a popular modding platform.
•The GravaStar uses a POM plate while the WOBKEY uses a carbon fiber plate, offering different modding starting points.

Content CreationGravaStar Mercury K1

•The GravaStar's wireless connectivity allows for easy repositioning during filming or streaming setups.
•The long battery life reduces downtime during long editing sessions.
•Its vendor description highlights a unique visual streamer effect for aesthetic setups.