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Comparison A4Tech X-718BK vs A4Tech F5

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A4Tech X-718BK
A4Tech F5
A4Tech X-718BKA4Tech F5
from $17.16 up to $24.00
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Product typemousemouse
Connectionwiredwired
InterfaceUSB AUSB A
Cable length1.8 m1.8 m
Sensoropticallaser, V-Track
Typefor gamefor game
Sensor and control
Sensor resolution600 – 3200 DPI400 – 3000 DPI
Max. acceleration15 G30 G
Number of buttons66
Double/triple click
Side buttons
DPI-button
 /600, 800, 1200, 1600, 2400, 3200/
 /400, 800, 1200, 1600, 3000/
Scroll wheels11
Features
DPI level indicator
Programmable buttons
Built-in memory
Cable
 
braided
General
Size (LxWxH)120x68x40 mm123x68x40 mm
Weight140 g145 g
Color
Added to E-Catalogjuly 2012june 2012

Sensor

Optical. The working element of an optical mouse consists of an LED that illuminates the underlying surface and an optical sensor that photographs this surface at high frequency. On the basis of a number of received images, the mouse electronics concludes about the direction and speed of movement of the manipulator and outputs the corresponding data to the computer. Optical mice are inexpensive, reliable enough and not too demanding on the working surface. Initially, they were poorly compatible with certain types of surfaces — mirror, fur, leather, etc.; however, in most modern optical sensors, this drawback is eliminated, and mice of this type are often quite "omnivorous".

Laser. According to the principle of operation, laser mice are similar to optical ones (see above). The main difference is that they do not use an LED, but a laser, to illuminate the image. Thus, a narrower beam directivity is provided, and as a result, more accurate cursor positioning, which is especially important when working with complex detailed graphics, in games, etc. Theoretically, the laser is less versatile and not compatible with such an abundance of surfaces as optics, but this difference is noticeable only on specific surfaces like fur, polished metal, etc. But the unequivocal disadvantage of this technology is the higher cost.

— Optical, Bluetrack. Optical models (see a...bove) using a sensor with BlueTrack technology. This technology was originally developed by Microsoft, but nowadays it is also found in other manufacturers. The most noticeable difference between such sensors and conventional optical ones is the blue colour of the LED (hence the name). In addition, the design provides for a number of improvements: an increased area of illumination of the surface under the mouse, high resolution of the matrix, coated optics. Thanks to this, BlueTrack mice have high accuracy and are able to function even on “difficult” surfaces such as glass, polished stone, carpet pile, etc.

— Optical, V-Track. Optical sensor using V-Track technology. This technology was developed by A4Tech and is used primarily in mice of this brand. One of the key features of V-Track is that the beam of light in such sensors falls on the work surface vertically (rather than obliquely, as in conventional optics). In addition, the light spot size is very small, the light density is high, and the photodetector lens has a very narrow aperture, which gives a large depth of field. Thanks to these improvements, V-Track provides very high accuracy and (according to the creators) is able to work even on volumetric mechs, where other types of sensors are useless. However, mice with this feature are not cheap.

— Laser, V-Track. Laser sensor using V-Track technology. For more information about this technology, see above, but here we note that the use of V-Track in laser mice allows you to get rid of the main drawback of such devices — sensitivity to non-standard surfaces. At the same time, the positioning accuracy characteristic of laser sensors is further increased by V-Track. On the other hand, the price of such devices is high. Therefore, the combination of a laser sensor and V-Track is extremely rare, mainly in premium gaming mice from the same A4Tech.

— Hybrid. The combination of two sensors in the mouse at once — optical and laser. Such a combination allows you to combine the advantages of both technologies and partially compensate for the shortcomings: in terms of accuracy, hybrid mice are not inferior to laser ones, while they are not so sensitive to non-standard surfaces. At the same time, the presence of two sensors significantly affects the price of the device, while it is possible to achieve similar characteristics with one sensor — due to the BlueTrack or V-Track technologies described above. Therefore, hybrid systems have not received distribution.

Sensor resolution

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.

Max. acceleration

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.

DPI level indicator

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.

Cable

Additional features of the cable that the mouse is equipped with.

These features may include a winding system, a detachable wire, and a braided wire(however, most modern mice still have a cable without a braid). Here is a more detailed description of all these features.

— Retractable. Wire equipped with a special coil for winding. This feature greatly simplifies transportation: during off-hours, the wire is as compact as possible and does not get tangled, and when used, it can be unwound to the desired length (usually the coil allows this possibility). All this is especially important for laptop mice (see "In direction") — in fact, most models with a wire reel fall into this category.

— Removable. Wire that can be detached from the mouse. Almost all mice with two connection options have this feature — wired and wireless: when working in a wireless format, the cable can be removed so that it does not interfere. However, there are also purely wired devices with such a cable — mostly laptop devices, where the wire is removed for ease of transportation. Also note that most often a universal connector like microUSB is used to connect the cable, so if necessary, the wire can be replaced with another one — for example, a longer one.

— In a braid. The presence of an additional braid on the mouse cable. This feature makes the wire more d...urable, reliable and resistant to bending. On the other hand, braid tends to accumulate dirt and fray when worn; because of this, the wire sheath loses its presentation faster than in mice without a braid. Yes, and such a wire is more expensive than a regular smooth one.

Weight

The total weight of the mouse. For models with a wired connection, usually, it is indicated without cable, and for devices with weight adjustment (see above) — without weights.

This parameter is important primarily for professional gaming applications, although it is often relevant for ordinary users. Theoretically, less weight promotes speed and reduces fatigue. At the same time, in fact, much depends on the personal habits and preferences of the user: a mouse that is too light may “not be felt in the hands” and not give familiar feedback. Therefore, although most mice have a lower weight limit of 60 – 80 g, however, even among professional gaming models there are much more massive devices — 120 – 140 g or more. The lightest variety of "rodents" is laptop (see "In the direction"), among them devices come across and less than 60 g.

Also note that the weight to some extent depends on the size and “tricked out” of the device, but there is no unambiguous dependence here: models similar in size and functionality can differ markedly in weight.
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