At first we would like to thank GravaStar for offering a sample of their Mercury M2 Stealth Black Gaming Mouse for testing and reviewing.

 

 

 

About GravaStar:

 

How we started

GravaStar was born from the founder Yong’s vision to create a futuristic, cyberpunk world fusing sci-fi with hi-fi. The brand was established to merge mecha, metal, and technology in everyday products. With over 10 years of industrial design experience, Yong uses his personal passion to produce design-driven, hyper-modern playable collectibles that don’t compromise on sound quality.

Our Concept

GravaStar is incredibly different from any other brand and is inspiring customers to incorporate a mecha sci-fi look into their daily lives. GravaStar products take inspiration from classics such as Transformers, Gundam, and Star Wars.

Who we are

We’re a team of designers, engineers, gamers, music fans, explorers, and other visionaries, working together to achieve one common goal - to build products and sound experiences that you can’t get anywhere else and which go beyond your wildest fantasies.

 

Product Features:

 

Innovative Hollowed-Out Design

Experience the unique blend of style and practicality with the M2's hollowed-out design. This creative approach not only gives the mouse a distinctive look but also ensures optimal airflow, keeping your grip cool during intense gaming sessions.

Highly Sensitive PAW3395 Sensor

Equipped with a 1K Hz polling rate and 26,000 DPI, the M2 captures every nuance of your movement, translating it into precise, in-game actions. Perfect for both competitive and casual gaming, it ensures your responses are always on point, thanks to the PAW3395. (*Note: Not support 4K receiver)

5 Programmable Buttons

5 programmable buttons, combined with user-friendly software, allow you to configure macros, adjust DPI settings, and tailor button functions to align with your gaming strategies. 5 buttons are programmed- Scroll Wheel, Right, Forward, Backward, and DPI.

Ultimate Customization Control

The Mercury mouse software enables you to assign macros, reconfigure button layouts, and adapt the mouse lights, DPI and polling rate to your gaming style, ensuring you’re always playing on your terms.

Seamless Wired and Wireless Options

Enjoy the seamless transition between Bluetooth, 2.4G wireless, and Wired modes, backed by a consistent 1K Hz polling rate for reliable performance.

5 Light Modes with GLOWSYNC RGB Tech

Elevate your gaming environment with the M2's customizable GLOWSYNC RGB lighting. Choose from five dynamic light modes and create your own lighting profiles using the intuitive software.

Maximize the Comfort with Ergonomic Design

Meticulously crafted for the discerning gamer, the M2 boasts an ergonomic design that cradles your hand, transforming every move into natural, precise actions. Enhanced tactile button feedback means every click is more satisfying, more accurate.

 

Product Specifications:

 

Frame Material: PVC

Sensor: PAW3395 (26000DPI)

Main Control Chip: BK CX52850

Net Weight: 78g

Dimensions: 124*65.5*39.5mm (4.88*2.58*1.56 inch)

Support for 4K: No (with 1K receiver)

Battery Life: Bluetooth 82 hours / Wireless 63 hours

Micro-Switches: KAILH 80 Million Clicks

Connections: Bluetooth, Wired, Wireless 2.4G

 

In this review we are going to look upon a very interesting mouse from the company GravaStar, which is adopting a futuristic look for all their product lineup such as mice, speakers, earbuds and chargers.

The product is shipped inside a small cardboard enclosure, which does show the product in operation, along with its name: Mercury M2 Wireless

 

 

 

On the sides, GravaStar has placed the saying “Be Cool, Play It”:

 

 

 

 

The bottom area does show the full list of specifications, but another sticker seems to have been placed over it, to highlight some details when it is sold in Europe and UK. Here we will also learn of the product unique serial number and code name:

 

 

 

After unsealing the box and lifting the top cover, we will note that the mouse is sitting secure inside a custom black plastic mold:

 

 

 

Underneath, GravaStar has placed the USB-C to USB-A adapter, but also the wireless dongle:

 

 

 

Another box is also found on the bottom layer with some more accessories:

 

 

 

The USB-C to USB-A adapter is handy to be used in order to place the WiFi dongle as far from the computer as possible, in order to eliminate interference:

 

 

 

 

 

The tiny dongle does follow the futuristic theme in terms of shape; on the metallic area we will find some laser-etched details such as the product name (GravaStar M2R), the serial number, the FCC ID and more:

 

 

 

 

The GravaStar logo is present on the front as well:

 

 

 

The separate, smaller cardboard box we were discussing about did come with the USB cable, a separate transparent plastic envelope but also a User Manual:

 

 

 

The USB data/charging cable is USB-A on the computer side and USB-C on the mouse side:

 

 

 

The braiding does really help with durability and the cable is flexible enough:

 

 

 

GravaStar is offering the customers an extra set of mouse feet, but also a set of mouse grips:

 

 

 

The PTFE feet are of very good quality, as we have noted with the stock, installed set as well, allowing Mercury M2 to glide easily on the surface:

 

 

 

The grip tapes have an interesting design, making your mouse look more like from a Transformers movie; these can be attached on the left/right buttons but also on the sides:

 

 

 

The manual will inform you regarding the box contents, the main mouse components, specifications, how to read the current battery levels, how to use the multiple connectivity options and more:

 

 

 

 

The Mercury M2 really looks apart, separating itself from the multitude of mice on the market which do employ a honeycomb pattern. GravaStar is using a hollowed-out design, with a total chassis weight of 78 grams, which makes you think you would be fiddling with a piece of technology from an Alien movie. The larger, ventilated areas do help your hand not to get sweaty during intense gaming sessions, while the interior semi-transparent chassis does allow the LED lighting to shine through, protecting the internal PCB from external factors as well:

 

 

 

The frontal lip of the GravaStar Mercury M2 design does remind us a bit of the small electric cars in amusement parks, while the left and right click buttons do come with Kailh micro switches with a durability rating of 80 million actuations. The scroll wheel is smooth and silent when utilized and the manufacturer did not omit to include some logos but also a saying here “Game Beyond Limits”:

 

 

 

A closer look in the frontal area of the mouse does show the USB-C port but also two extra cut-outs on the sides, which show a bit of the internal, semi-transparent chassis; we think that GravaStar wanted initially to allow RGB lighting to shine through in this area as well, but they decided not to in the end and did not mount some extra SMDs here:

 

 

 

Between the buttons and in the back of the scroll wheel we will find the button dedicated for changing the DPI levels:

 

 

 

The left side area does show two extra programmable buttons; here we did note that the buttons are a bit placed towards the front of the mouse, forcing us to utilize the mouse with a palm grip. When going for a fingertip grip, we were able to touch only the back button properly; this is just an observation, meaning that the users will need some time to get used to and learn the shape of the Mercury M2:

 

 

 

A closer look at the arched back will show that there is a respectable distance between the inner shell and the outer shell, allowing for easy cleaning when needed:

 

 

 

A similar design of the mouse is available on the right side as well, it having mostly an ambidextrous shape, minus the programmable buttons:

 

 

 

The bottom area includes a small cut-out for the product sticker, a small switch, the optical sensor lens, but also the USB dongle compartment. Mercury M2 employs the high-end Pixart PAW3395 sensor with a maximum DPI of 26000 and Polling Rate of 1000Hz:

 

 

 

On the mentioned sticker, GravaStar has included the power rating of the mouse, the FCC ID, but also the CMIIT ID:

 

 

 

With the switch, we can turn the mouse off, enable WiFi or use it with the Bluetooth interface:

 

 

 

After powering on the mouse and connecting it to our test system, we noted the nice RGB effects:

 

 

 

 

 

 

 

 

The dedicated software application of Mercury M2 does sport a futuristic design as well; right after opening the app, we will note that the mouse has been detected successfully and we will be informed of the current Polling Rate and the way the mouse is connected to the computer. GravaStar is also showing here the links to the social media accounts:

 

 

 

The GUI is easy to work with, with the main menu sections on the top area:

 

 

 

We can save the configuration to four different slots:

 

 

 

Besides the left button, we can program all others with different functions:

 

 

 

Here are the functions we can choose between:

 

 

 

 

Scroll Up/Down

Scroll Left/Right

DPI Lock

DPI Switch

Media Key

 

The Debounce time can be also configured:

 

 

 

 

The second menu does allow the user to configure the number of DPI steps, the DPI value for each step, the Polling Rate, but also some sensor-specific options:

 

 

 

Mode Select

LOD

Peak Performance

 

Next, we do have the Macro creator, which allows recording the desired key sequences; we can add extra delays and specify the number of cycles, but also insert some other actions:

 

 

 

The Lighting menu does allow the user to choose a preset, adjust the Speed and Brightness of the effects, but also choose the option if the lights should turn off when the mouse is moving to save battery life; we can specify as well, when the lights should turn off to save battery life:

 

 

 

 

Here is the list of presets we can choose from:

 

 

 

The last menu does come with the language selection for the GUI, we can take a look at the Mercury M2 current receiver and mouse firmware versions, pair the mouse manually to the receiver, select to run the utility on system boot but also enable Long Distance mode (in which case the battery life will be reduced):

 

 

 

 

The Mercury M2 is really on another level in terms of looks, while the large ventilated areas do also help with cooling quite a bit. If dust is accumulated inside, it won’t go on the internal board, which is protected via a semi-transparent enclosure and is easy to clean. The Stealth Black color of the plastic finishing would make you think the chassis is made from metal when looking from a distance, thanks to the quality of the build and it won’t create any creaking noises, the chassis being sturdy.

 

We found that the mouse is better to be used with a fingertip grip, in order to have an optimal positioning of the thumb finger; while the mouse weight is concentrated towards the front, we did not get any issues from that and we could have fun while playing games such as Helldivers 2, New World, Outcast 1.1, Vindictus and Last Epoch. The Pixart PAW3395 with a maximum DPI of 26000 is easily one of the best sensors you can get nowadays and this shows no matter the usage scenario: productivity, casual gaming or competitive.

 

Button durability is not an issue with the Mercury M2, having installed Kailh micro-switches with 80 million actuation rating, while the installed battery can support up to 82 hours in Bluetooth mode and up to 63 hours in wireless mode.

 

The Mercury M2 really brings a bit of fresh air in terms of mouse design and the pricing of about $80 on Amazon is competitive for a high-end offering which packs the latest generation optical sensor and triple connectivity options (Bluetooth, wireless, wired).

 GravaStar Mercury M2 Stealth Black Gaming Mouse is Recommended for:

 

 

We would like to thank again to GravaStar for making this review possible!