When comparing Logitech G502 Proteus Spectrum vs Roccat Lua, the Slant community recommends Logitech G502 Proteus Spectrum for most people. In the question“What is the best gaming mouse?” Logitech G502 Proteus Spectrum is ranked 1st while Roccat Lua is ranked 38th. The most important reason people chose Logitech G502 Proteus Spectrum is:
The G502 gaming mouse has 11 programmable buttons, support for macros and profiles, adjustable weight and center of balance, two scroll wheel modes, and a plethora of settings to customize. In addition to the standard left, right, and scroll wheel buttons, there's a button below the scroll wheel, three thumb buttons, two buttons to the left of the left mouse button and you can tilt the mouse wheel left and right for extra functionality as well. All of these buttons can be programmed to do pretty much whatever you want. The scroll wheel can act as a smooth unhindered scroll or a notched scroll depending on how you want to use it. It has an on-the-fly CPI switch with 5 states and the mouse can store three different macro profiles and can switch between them with a button press. You can also customize the weight of the gaming mouse between 121-139 grams and its center of balance with up to five 3.6 gram weights to adjust how it feels as it moves across your mousepad.
Specs
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Pros
Pro Highly customizable
The G502 gaming mouse has 11 programmable buttons, support for macros and profiles, adjustable weight and center of balance, two scroll wheel modes, and a plethora of settings to customize.
In addition to the standard left, right, and scroll wheel buttons, there's a button below the scroll wheel, three thumb buttons, two buttons to the left of the left mouse button and you can tilt the mouse wheel left and right for extra functionality as well. All of these buttons can be programmed to do pretty much whatever you want.
The scroll wheel can act as a smooth unhindered scroll or a notched scroll depending on how you want to use it.
It has an on-the-fly CPI switch with 5 states and the mouse can store three different macro profiles and can switch between them with a button press.
You can also customize the weight of the gaming mouse between 121-139 grams and its center of balance with up to five 3.6 gram weights to adjust how it feels as it moves across your mousepad.
Pro Allows you to switch between notched and smooth scroll wheel modes
The scroll wheel can act as a smooth unhindered scroll or a notched scroll depending on how the user wants to use it.
Pro Scroll wheel has useful horizontal clicks
The scroll wheel can be pressed form side to side to enact two different programmable button presses.
Pro Easily accessible 5 buttons on the side of the mouse
Unlike most mice with two side buttons accessible with your thumb the G502 has five. Three are very easily accessible with hardly moving your thumb and two require some movement yet are still pretty easy to get to. asdfasd
Pro Amazing 12000 CPI optical sensor
The Logitech G502 Proteus Core gaming mouse has an impressively accurate 12000 CPI optical sensor that's capable of tracking speeds up to 7.5 m/s. There is no acceleration, angle snapping, prediction or jitter even at max CPI.
Pro Great for palm and claw grips
Palm and claw grip both work pretty well on this device.
Pro Thumb-rest and textured side grips provide good grip
The thumb rest and texture side grips helps the user grip the device better.
Pro Control the weight
You can use the magnet to adjust the weight.
Pro Cable braiding protects it from accidental damage
The DeathAdder Elite gaming mouse has a 2.13m braided cable, that helps prevent kinking, curling and protects the cable prolonging life of mouse.
Pro Good, long-lasting build quality
This mouse is built to last with its mechanical button switches, smooth teflon feet, and lengthy braided cable. The built in rubber thumb rest and rubber side panel makes the mouse ergonomic as well as reducing wear-and-tear. These features combined make for a device that will last for a good while.
Pro Accurate Sensor
The G502 has one of the best sensors on the market. The Pixart PMW 3366DM optical sensor is high-quality and sought after for gaming and precision tasks.
Pro Funcional lift-off-distance lower than 1.2mm can be achieved
By calibrating the sensor with the users mousepad a lower lift off distance can be achieved.
Pro Helps you lock in the feel of the mouse with adjustable weight and center of balance
You can also customize the weight of the gaming mouse between 121-139 grams and its center of balance with up to five 3.6 gram weights to adjust how it feels as it moves across your mousepad.
Pro On-the-fly 5-state CPI switch
It has an on-the-fly CPI switch with 5 states.
Pro Allows you to quickly switch between different tasks with 3 different macro profiles
This gaming mouse can store 3 different macro profiles and can switch between them on the fly. Since they are on-board, no software is required to set the gaming mouse up on another system.
Pro Intuitive software
The software is straightforward to use. It allows you to reassign button functionality, set up macros, profiles and lights, and adjust sensitivity for each axis separately.
Pro Comfortable to use
Its rather small size and lower than usual height allow for a substantially comfortable grip. The sides have a dent which helps fingers positioning. Additionally, the sides are smoothly textured so you shouldn’t ever feel like your hand is losing its grip.
Pro Well suited for fingertip and claw grips
Unless you have small hands, this is a mouse that is meant for people who use either the claw or fingertip grip. In addition to being a small mouse and having low height, it's also extremely light, weighing only 68 grams. This makes it easy to control with a fingertip and claw grip as it relies on the mouse being as agile as it can be.
Pro Well built
Even though it’s a budget mouse, it has high quality components to ensure that the mouse can last for years. There are no unnecessary moving parts while button clicks are clear and don’t give out after heavy use. The body of the mouse consists of rubberized coating at the top and textured plastic on the sides which gives it a quality feel.
Pro Good amount of customization provided by the accompanying software
The software is very simple and easy to use. It lets you change the DPI steps, double click speed, vertical scroll speed, polling rate, very basic lighting control and the choice of hand-mode. In addition, it has the option to reassign its buttons, but since the Lua has only four buttons it’s practically useless as the main three are almost always invariable.
Pro Excellent budget sensor
The Avago A3050 optical sensor that the Lua uses has small, unnoticeable prediction and doesn’t carry over perfect tracking at high speeds (depending on the chosen DPI setting, over 60-120 inches per second or 1.5 m/s-3 m/s). But unless you use it at extremely low sensitivity, it shouldn’t be a problem. When reaching such speeds, some negative acceleration may be noticed.
Pro Full Linux support
Roccat has good Linux drivers.
Pro Can be used by both righties and lefties
Uses an ambidextrous design that actually feels as if it is and ergonomic design no matter what hand is using it.
Pro On-the-fly CPI switch
There is a button right behind the scroll wheel that will allow for on-the-fly CPI switching.
Cons
Con Scroll wheel wobbles in free-scroll mode
The free scroll setting has a bit of a wobble in the wheel.
Con Software is Windows-only
LGS (Logitech Gaming Software) does not have Linux or macOS support, so the mouse cannot be tuned or configured under those operating systems. However, if the mouse is configured on a different OS, the configuration will work on Linux and macOS, since the profiles are stored on the mouse itself. (Note that the options for on-device profiles are limited compared to using profile on the OS itself)
Con Made for right handed users only
The shape does not work in your left hand.
Con The braided cable is a dust magnet
Con Placement of button on left side of mouse
The button is directly under the user's thumb so when you try to lift the mouse, you would end up pressing the button also.
Con Only 3 thumb buttons
Not many players realize that thumb- ring finger grip is so crucial for character movement in any fast paced PVP game. With 2 more thumb buttons on Logitech G502 it would be ideal hybrid mouse for any MMO.

Con Heavy middle mouse click
The middle mouse click is very hard to press, often times making you scroll, instead of clicking.
Con Focus windows profiles inconsistent
The feature that loads profile on the files based on the focus window doesn't work well, it sometimes slow to setup, it loses the profile in the middle of a session or it can switch to another profile randomly.
Con Poor feedback management
You will find most of your answers on Reddit by the community that struggles with devs to obtain any kind of usable answer.
Most often devs answers are automatic PR scenario answers to dodge responsibility.
Con Slow software improvement
Con Lose macro at time
When it happens, you will have to set it up again.
Con Dpi Button switches are fragile
Con Too heavy for competitive FPS
Most competitive FPS gaming mice aim to weigh under 100 grams. The G502 weighs 121 grams, which can be further increased to 139 grams with extra weights. The increased weight makes it more difficult to move quickly. It also means your hand will get tired quicker.
Con Can get uncomfortable after long usage due to weight and shape
The mouse weight is already a lot, but for better upward and downward weight distribution, it asks you to insert at least 2 weights in. The shape, however is very much based on hand size and angle preference. Due to its size, it is a bit more comfortable for people with hands larger than the average.

Con The LED behind the G is really bright (can be disabled though)
The LED backlit G on the back of the mouse can be quite bright in a dark room. For users that do not want to use the application that is necessary (or can't, like say Linux users) the light is unable to be turned off. Of course within the application for the mouse the light may be completely turned off.
Con Potential pinning bug
Changing the surface setting in the app may potentially cause random spinning ingame for a random period of time (usually ~5sec). This has something to do with the surface of the mousepad being used and a particular setting of the mouse. In order to address this issue, you can return the mouse back to its default surface setting.
Con Lacks sidebuttons
Since it’s in the style of a classic three-button mouse, the lack of side buttons limits customization options.
Con Small size takes some getting used to
The Roccat Lua is a small mouse, measuring only 11.5 cm in length and 3 cm in height. The width is pretty standard with 6.5 cm at the back and narrows down towards the front. The small size might raise some concern about the grip. If it’s your first mouse of this size you might need to adjust your grip to accommodate for the smaller scale of the mouse. Commonly the grips change and include some elements of a fingertip grip.
Con Top DPI value may feel insufficient for some gamers
The DPI amount caps at 2000, which might not be enough for some.
Con Can suffer from small amounts of jitter on high DPI values
This mouse's DPI setting can be set from 250 to 2000, in increments of 250. At DPI settings higher than 1250, it can generate small amounts of jitter. The mouse works the best at 500 DPI with a 1000Hz polling rate.
Con Rubber cord is prone to breaking
It has a rubber type cable which means there’s less resistance and drag against the desk but at the same time can be more prone to damage when bent.
Con Light weight takes some getting used to
At 68 grams, it's about 30% lighter than most mice. Switching from an average mouse might take some getting used to and feel like the Lua is a bit floatey.
Con Uses an outdated sensor
The Lua’s optical sensor might be a bit dated, since it was released five years ago. Still, it mostly only shows weakness when it is facing really fast mouse movements. And as long as you are aware of it, this shortcoming can be entirely avoided.
Con Low palmrest height
The low palmrest height may be a turn off for some palm style users.
