Comparison A4Tech Bloody R36 Ultra vs Logitech G Pro Wireless

Interface used for wired connection in mice that have this capability (see "Connection type").

The most popular nowadays is the connection through the classic USB port. Mice for the newer USB-C connector, for a number of reasons, are produced quite a bit, despite the advanced capabilities of this interface. And PS/2, on the contrary, is gradually giving way to newer and more advanced standards. Here is a more detailed description of each of these options:

— USB. Connect to a traditional, full-size USB port (called USB A). Such connectors are extremely widespread: they are practically mandatory for modern PCs and laptops, and are also used as standard for working with peripherals in smart TVs, media centers and other types of electronics. That is why the vast majority of wired mice use this connector.

— USB-C. The newest (for 2020) type of USB connector; is significantly smaller than the USB A described above, as well as a convenient double-sided design. Such connectors are increasingly used in modern PCs and laptops, but very few mice are made for them; this is due to several reasons. Firstly, advanced versions of USB are often implemented through the USB-C connector, with high speed and high power supply; for mice, these characteristics are not needed, but they can be useful for more demanding devices. Secondly, the USB-C hardware socket can b...e used for interfaces other than USB (primarily Thunderbolt v3 and v4). Thirdly, it is simply easier to get into the full-size USB A connector with a plug — especially when trying to blindly find the connector on the back of the system unit. In light of all this, only a few laptop mice are produced under USB-C (see "In the direction").

— PS/2. A specialized connector with a characteristic round shape, used exclusively for keyboards and mice; colloquially known as "pee in half". PS/2 inputs are found exclusively in desktop PCs — they are too bulky for laptops. In general, this interface is considered obsolete and less used, but it can still be found in modern computers. At the same time, PS/2 has a very practical advantage: connecting a mouse to such a socket allows you to leave an additional USB connector free, which, in turn, can be useful for other peripherals. However, mice with only such a plug nowadays are almost never found — devices that can also connect to USB have become more common (see below).

— USB or PS/2. This option most often means that the mouse itself is equipped with a USB plug, and an adapter for PS/2 is supplied with it. Thus, the device turns out to be as versatile as possible in connection; at the same time, adapters are very inexpensive, their price is almost invisible compared to the cost of the mice themselves (even inexpensive ones). Therefore, most modern manipulators with the ability to work through PS/2 belong to this category.

The range of the wireless connection provided in the mouse (see "Connection Type").

Almost all modern wireless models work confidently at a distance of at least 2 – 3 metres. So you need to pay attention to this parameter mainly when you plan to use the mouse at a greater distance from the computer — for example, when working with a projector at a presentation. At the same time, when evaluating the range, note that it is indicated for perfect conditions: the absence of interference and obstacles in the signal path, the full charge of the battery in the mouse, etc. In fact, the communication range may be somewhat less, so when choosing, it is worth taking a certain stock. Nevertheless, according to the claimed range, it is quite possible to evaluate the practical capabilities of different models and compare them with each other.

The model of the sensor installed in the mouse. This information is indicated mainly for models equipped with high-end sensors, which are significantly superior in their capabilities to simpler solutions. Such characteristics are important primarily for gaming mice, so most of the devices for which the sensor model is specified belong to this category.

Knowing the name, you can find detailed data on the sensor and evaluate its capabilities. Note that one of the most popular brands nowadays, under which advanced sensors are produced, is PixArt ; on the market are often found, in particular, sensors PixArt 3212, PixArt 3325, PixArt 3327, PixArt 3335, PixArt 3360, PixArt 3389, PixArt 3395. The second common brand is Avago (recently owned by the same PixArt); the most popular model of this brand is Avago 3050, the simplest and most affordable representative of gaming sensors.

Resolution of the sensor responsible for tracking mouse movements on the work surface. Specified in DPI — dots per inch.

The physical meaning of DPI as a whole is as follows. The sensor of a modern mouse works on the same principle as the camera matrix, and consists of pixels. And DPI is the number of pixels that fall on 1 inch of the underlying surface (length or width), "visible" by the sensor.

It is believed that more DPI means a more advanced sensor and mouse in general; nowadays, models for 3500 – 5000 DPI, 12000 DPI, 16000 DPI even more are not uncommon. In a way, it is — high resolution contributes to accuracy. However, the only thing that is directly determined by this indicator is the speed at which the cursor moves across the screen: the higher the resolution of the sensor, the greater the number of pixels that the cursor will move when the mouse itself moves a certain distance. At the same time, it is worth recalling that too high a speed is even more undesirable than too low. So the real need for high DPI ( 1000 and above) arises mainly when working on large screens (4K resolution and more); for more modest displays (HD and Full HD), smaller values are often enough.

The greatest acceleration during movement, at which the mouse maintains normal performance; if this indicator is exceeded, the cursor may “break down” (moving to an unexpected place due to incorrect processing of data from the sensor).

The faster the mouse moves, the greater the acceleration acting on it. Accordingly, this parameter determines the sensitivity to sudden movements, the extent to which this model is able to normally perceive and process such movements. High values of maximum acceleration ( 40 G, 50 G) are important first of all in dynamic games, especially for professional e-sportsmen and advanced enthusiasts. If the mouse is bought for relatively simple tasks (working with documents, surfing the web, etc.), you can ignore this indicator.

The ips (inches per second) parameter is the linear speed of mouse movement, expressed in inches per second, at which the manipulator's sensor is able to read the surface. In top models, the maximum mouse movement speed often reaches 400-600 ips, but devices with ips in the region of 200 are more common.

The durability of mouse switches is measured by the number of clicks the keys can withstand before they begin to show signs of wear or malfunction. Switches can have a lifespan of several million to tens of millions of clicks. In laboratory conditions, this parameter is checked using special testing machines, which diligently press the keys the required number of times, on the basis of which a verdict is made regarding the approximate service life of the switches.

An indicator showing the current resolution of the mouse sensor.

The DPI value indicator is found only in models that allow you to switch the sensor resolution and are equipped with the appropriate buttons (see above). The indicator allows you to easily monitor the set DPI settings. Note that it does not necessarily show specific numbers — conventions can be used, for example, different backlight colours.

- Teflon (PTFE). Polytetrafluoroethylene (PTFE) glides - also known as Teflon - are characterized by an extremely low coefficient of friction. As a result, mice with Teflon feet boast excellent glide and high cursor speed on any type of surface. The minimum level of friction allows you to easily control the movements of the mouse. Manipulators with Teflon gliders perform well in dynamic games and reduce wrist strain during prolonged work at the computer.

— Metal. When properly sanded, the metal feet provide excellent glide for the mouse, and they also have a long service life before abrasion. Note that manipulators with metal gliders are best used on plastic or other hard-wearing playing surfaces. Using a mouse without a mouse pad runs the risk of scratching the surface.