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Comparison Sony PlayStation VR v2 2019 vs Homido Grab

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Sony PlayStation VR v2 2019
Homido Grab
Sony PlayStation VR v2 2019Homido Grab
Outdated ProductOutdated Product
TOP sellers
Main
HDR compatible. The docking station has been improved - now it is smaller and lighter. PlayStation Camera included
CompatibilityPC / game consolefor smartphone
Specs
Max. phone screen size5.7 "
Screen resolution1920x1080 px
Field of view100 °100 °
Refresh rate120 fps
Accelerometer
Gyroscope
Multimedia
USB A
HDMI+
Microphone
Headphones
Headphone output
General
Controlpush-button
Magnetic button
Materialplasticplastic
Dimensions (HxWxD)187x185x277 mm102x168x99 mm
Weight600 g240 g
Added to E-Catalogmay 2019march 2017

Compatibility

The general purpose of the glasses is specified based on which device they are to be used with:

For PC/Console. Glasses connected during operation to an external device and receiving a video signal from this device. Most often, it is supposed to be connected to a computer or game console, but there are models that can be connected to mobile gadgets, drones, etc. In general, they provide a good compromise between accessibility and functionality, and besides, quite advanced graphics can be displayed on such glasses. On the other hand, for the full use of such models, powerful video cards are often required.

For a smartphone. Models designed to turn a smartphone into a virtual reality device. To do this, the smartphone is installed in a special slot on the glasses so that its screen is turned towards the user's eyes; glasses themselves do not have screens. And the effect of virtual reality is achieved through the operation of smartphone sensors and (accelerometer, gyroscope) and the use of special applications created specifically for this format of work. The key advantage of glasses of this type is simplicity and low cost: most often these are purely mechanical devices, without built-in electronics (and even advanced models with additional hardware are much cheaper than other types of glasses). On the other hand, the quality of virtual reality directly depends on the capabilities o...f the smartphone, despite the fact that not all devices correctly process such content. In addition, the glasses must be compatible with the smartphone being used, and this is not always guaranteed (for more details, see “Maximum phone size”).

For quadcopter (FPV goggles). Video glasses used to control drones and radio-controlled unmanned aerial vehicles (UAVs) to provide a first-person view. FPV goggles allow pilots to receive a video feed from a UAV camera in real time. To do this, the design of such glasses provides two separate miniature screens for each eye and complex optics to provide binocular vision. Lenses often have adjustable focal length to suit the visual apparatus and the varying needs of the pilot. Many FPV goggles are equipped with a built-in receiver and antennas to receive signals from the video camera on board the UAV, as well as control the quadcopter. FPV systems are actively used in the segment of racing drones, aerial photography, and even in combat operations. Glasses with a first-person view provide the pilot with a more complete perception of the surrounding environment and improve the controllability of the aircraft.

Standalone device. Points that function completely autonomously and do not require the use of external devices. To do this, the design provides for its own processor, "RAM", video adapter, drive for storing content and a battery for power. Thus, with such a gadget, virtual reality becomes available literally anywhere in the world; and at a cost, such glasses are comparable to models for PC / consoles. On the other hand, the capabilities of stand-alone devices are noticeably more modest: the relatively low power of video adapters does not allow for the same advanced graphics as on PCs or consoles, the amount of internal memory is usually small, and the continuous operation time is limited by battery charge.

For quadcopter (FPV glasses). Video glasses used to control drones and radio-controlled unmanned aerial vehicles (UAVs) to provide a first-person view. FPV goggles allow pilots to receive a video feed from a UAV camera in real time. To do this, the design of such glasses provides two separate miniature screens for each eye and complex optics to provide binocular vision. Lenses often have adjustable focal length to suit the visual apparatus and the varying needs of the pilot. Many FPV goggles are equipped with a built-in receiver and antennas to receive signals from the video camera on board the UAV, as well as control the quadcopter. FPV systems are actively used in the segment of racing drones, aerial photography, and even in combat operations. Glasses with a first-person view provide the pilot with a more complete perception of the surrounding environment and improve the controllability of the aircraft.

Max. phone screen size

The largest diagonal of a smartphone compatible with the corresponding glasses (see "Intended use"). Note that this parameter can be specified both for universal models that do not have specialization for specific mobile phones, and for gadgets for specific devices (for more details, see "Compatible phone models"). The maximum diagonal is connected both with the features of the optics and with the physical dimensions of the "seat" for a mobile phone — a gadget that is too large simply does not fit there.

Note that even the smallest glasses for smartphones work quite correctly with devices with a diagonal of 5 – 5.5 ". So it makes sense to pay attention to this parameter if your device has a larger screen size. Nowadays, you can find glasses for gadgets 5.6 – 6 " and even 6" or more.

Screen resolution

Resolution of built-in displays in glasses equipped with such equipment — that is, models for PC / consoles, as well as standalone devices (see "Intended use").

The higher the resolution, the more smooth and detailed the “picture” is given out by glasses, all other things being equal. Thanks to the development of technology nowadays, models with Full HD (1920x1080) screens and even higher resolutions are not uncommon. On the other hand, this parameter significantly affects the cost of points. In addition, it is worth remembering that in order to fully work with high-resolution displays, you need powerful graphics capable of playing relevant content. In the case of glasses for PCs and set-top boxes, this puts forward corresponding requirements for external devices, and in standalone models you have to use advanced integrated video adapters (which affects the cost even more).

Refresh rate

The refresh rate supported by the glasses' built-in screens, in simple terms, is the maximum frame rate that the screens are capable of delivering.

Recall that screens are provided in models for PC / consoles and in stand-alone devices (see "Intended use"). And the quality of the picture directly depends on this indicator: other things being equal, a higher frame rate provides a smoother image, without jerks and with good detail in dynamic scenes. The flip side of these benefits is an increase in price.

It is also worth considering that in some cases the actual frame rate will not be limited by the capabilities of the glasses, but by the characteristics of the external device or the properties of the content being played. For example, a relatively weak PC graphics card may not be able to pull out a high frame rate signal, or a certain frame rate may be set in the game and not provide boosting. Therefore, you should not chase after large values and points with a frequency of 90 fps will be enough.

Accelerometer

Presence in points of own built — in accelerometer.

The accelerometer is a sensor that records the accelerations that the device is subjected to. It performs two main functions: determines the position of the glasses relative to the horizon (in the direction of gravity) and monitors jerks and tremors (however, this function is secondary in VR glasses). Such a sensor is necessary for a full-fledged "immersion" in virtual reality, so it must be provided in glasses made in the form of independent devices (see "Intended use"). But models for PC / consoles may not be equipped with an accelerometer — this means that the glasses are not designed for classic VR, but for more specific tasks (for example, controlling a drone with a first-person view).

As for models for smartphones, most of them do not have this function, since all modern smartphones are equipped with accelerometers. However, there are exceptions — high-end models designed for specific devices: in them, the accelerometer can work in conjunction with a smartphone sensor, which ensures the most accurate image positioning.

Gyroscope

The presence in the glasses of its own built-in gyroscope.

The gyroscope captures the direction, speed, and angle of rotation of the device—usually along all three axes. Without such a sensor, it is impossible to achieve a full-fledged "immersion" in virtual reality, so it is available in all standalone glasses, as well as in most models for PC / consoles (see "Intended use"). In the second case, the only exceptions are individual models with a specific purpose — "personal cinemas", glasses for piloting drones, etc. In turn, glasses for smartphones do not initially require gyroscopes, since smartphones themselves have such sensors. However, there are exceptions here too — advanced models created for specific top-level devices: in them, the built-in gyroscope works in conjunction with the gyroscope of the connected smartphone, ensuring maximum positioning accuracy.

USB A

The glasses must have at least one USB A connector. This is a full-sized USB connector, the same type as standard USB ports on computers and laptops. But its functions may be different, depending on the functionality of the glasses (see "Purpose"). So, in models for PCs and consoles, USB is one of the connection connectors used in conjunction with a video interface such as HDMI or DisplayPort: an image is transmitted via a video connector, and data from sensors on glasses is transmitted via a USB connection, which is necessary to change the picture and create " immersion effect. And in independent devices, USB A is used to connect various additional accessories — for example, flash drives with applications or other content. It is also possible to use this connector to charge the battery, although this method of use in general is not typical for it.

HDMI

Availability of HDMI input in glasses; the version of this interface can also be specified here.

HDMI is the most common interface for high-definition video and multi-channel audio today; it is widely used in both computers and video equipment. In VR glasses, this type of connector is responsible for receiving video and audio signals from an external device; accordingly, only models for PC / consoles have such a connector (see "Intended use"). As for HDMI versions, the options may be as follows:

— v.1.4. The earliest of the current standards, the 2009 model (with subsequent updates). Allows you to work with Full HD video at a frame rate of up to 120 fps, but with 4K content, the speed is limited to 24 fps.

— v.2.0. Standard introduced in 2013. Also known as HDMI UHD, thanks to full support for UltraHD 4K (provides frame rates up to 60 fps). And in further updates of this standard, support for HDR was added.

— v.2.1. Version released to the market in 2017. It allows you to achieve a frame rate of 120 fps even at 8K resolutions, not to mention more modest ones. HDMI Ultra High Speed cables are required for full use, but the features of earlier versions are available with regular cables.

Microphone

The presence of a microphone in the design of VR glasses.

This function is mainly equipped with models for PC / consoles (see "Intended use"). The built-in microphone is mainly used for voice communication in online games. At the same time, it often turns out to be more convenient than a desktop microphone or a microphone built into a headset: glasses can interfere with the comfortable wearing of a headset, and a desktop device is not applicable because at least the user’s head (or even the whole body) is constantly moving in VR games, and constantly it is impossible to be at the optimal distance from the microphone.

For added convenience, your own microphone can be made retractable or removable.
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