Built-in memory
The amount of built-in storage installed in glasses.
Only independent devices are equipped with such a drive (see "Intended use") — it is used to store software firmware, as well as various additional content (applications, panoramic films, etc.). The larger the storage capacity, the more such content can be stored on the device; on the other hand, this characteristic directly affects the price. It is also worth considering that some models allow you to supplement the built-in storage with a memory card (for more details, see "Cart Reader").
For modern virtual reality glasses, the most modest volume is 16 GB — it is technically impractical to install smaller drives. In advanced models, this figure can reach 128 GB.
RAM
The amount of random access memory (RAM) installed in glasses.
This parameter is relevant only for independent devices (see "Intended use"). Theoretically, the more RAM in the gadget, the higher its power, the faster it is able to work and the better it handles with “heavy” tasks. However, in fact, this characteristic has more reference than practical value. Firstly, the capabilities of standalone glasses are also highly dependent on the processor and video adapter used. Secondly, the amount of memory is selected in such a way that the glasses are guaranteed to be able to cope with the tasks for which they were originally intended. Actually, problems can only arise with the launch of very demanding applications or resource-intensive video (for example, 4K panoramic videos); so paying attention to the amount of RAM makes sense only if you plan to use glasses for such purposes.
As for specific volumes, they in modern devices range from 2 to 4 GB.
CPU
The model of the processor installed in the glasses.
This information is indicated mainly for stand-alone devices (see "Intended use") — it is in them that the capabilities of the glasses as a whole directly depend on the processor model. And knowing the name of the chip, you can find detailed data on it and evaluate its effectiveness. At the same time, in fact, such a need arises extremely rarely: manufacturers choose processors in such a way that glasses can be used for their main purpose without any problems. So when choosing, you should pay attention to more practical parameters — display resolution, refresh rate, etc.
Bluetooth
The presence of a
Bluetooth module in the glasses; The Bluetooth version to which this module corresponds can also be specified here.
Bluetooth is a technology created for direct wireless connection between various devices. This technology is found in all types of VR glasses (see “Purpose”), although most models with its support are independent devices. In any case, the most popular way to use Bluetooth in virtual reality glasses is to broadcast sound wirelessly. Moreover, the format of such a broadcast may be different, depending on the specifics of the glasses themselves. Thus, standalone devices broadcast the reproduced sound to external headphones. Models for PCs and smartphones may have built-in headphones, and here the sound is transmitted via Bluetooth to the glasses from an external device; Audio from the built-in microphone can be transmitted in the opposite direction.
In addition, there are other possible ways to use Bluetooth, such as directly exchanging files with another device or connecting game controllers. Such capabilities are found exclusively in stand-alone glasses; the specific functionality for each model should be clarified separately.
As for the versions, the oldest one used in VR glasses today is Bluetooth 3.0, the newest is Bluetooth 5.0. However, the differences between different versions for such devices are not fundamental; this information is provided mainly for reference purposes.
Wi-Fi
The Wi-Fi version supported by the glasses.
Wi-Fi technology is known mainly as the most popular way to connect to the Internet wirelessly, although it can also be used for direct connection between different devices (Wi-Fi Direct). Anyway, this function is found exclusively in stand-alone devices (see "Intended Use"). It is mainly used to connect to the World Wide Web, but the possibilities of such a connection may be different. So, in some models, a Wi-Fi connection is used to access proprietary application repositories, cloud services for storing game data, etc. Others may provide support for third-party services such as social networks or instant messengers, or even a full-fledged browser for web surfing. Technically, nothing prevents the use of Wi-Fi Direct in VR glasses, but for a number of reasons, this format of work is almost never found.
As for the versions, in modern virtual reality glasses there are mainly Wi-Fi 4 (802.11 n) and Wi-Fi 5 (802.11 ac). The difference between them in most cases is not fundamental, especially since, for compatibility, Wi-Fi modules often provide support for not only one of these standards, but also earlier ones. And the new Wi-Fi 6 at the beginning of 2021 has not yet gained much popularity. But everything has its time.