I wanted something that could replace my tablet screen for the long flights I often take. For those who have never used such glasses, it is important to clarify that these particular ones do not have any interactive functions like other types of glasses that have cameras and detect hand movements, etc. Therefore, they cannot be used to control a computer or other compatible device. It's like wearing screens instead of glasses and you just watch. The resolution is not top-notch but in my opinion it is sufficient for the use I want. Watching a movie is an amazing experience. You feel like you are in front of a huge screen a few meters in front of you. Regarding the viewing angles (this particular model is advertised as offering a wider angle than the previous model) not only am I satisfied but I think (without having tried the previous model) that it is more than enough. This means that potential buyers who may have an issue with the price might be satisfied with the simple model with the narrower viewing angle, which is cheaper.

What's the problem and why do I give it 4 stars? The problems are a bit practical. The product is honest and of quality.

First problem, to use it, although not required, you need a power supply. I have the Galaxy Tab S10+ (large tablet) and the glasses drain the battery. Three 45-minute episodes and 50% of the battery is gone. I had to get an adapter so I could charge and watch a movie at the same time without worrying about the battery charging.

Second problem is the sound. Although they have very high-quality Bose speakers, the speakers are open type and the volume is very low. In addition, you lose privacy because the person next to you hears what you hear, albeit at a lower volume. My wife complains in bed. The problem is solved if you use closed-type headphones that cover the glasses' speakers, but if you are going to use extra headphones, you connect them via Bluetooth to the tablet and listen through the extra headphones, which due to their size have better bass.

Third problem, in the glasses case there is no special compartment for storing the cable, which is a special USB cable that supports video signals and is black, just right to get lost. So whoever puts the cable in the case risks scratching the glasses.

The fourth and most important problem for me is the cables. Supposedly you watch a movie to relax and in the end, with all the cables, you feel like you are in intensive care. One cable to the adapter from the socket, one cable from the adapter to the tablet, and one cable from the adapter to the glasses. The positive, however, is that the glasses are so light that you can binge-watch without getting tired. I've watched up to 3 movies in a row. Nothing like other types of glasses that have their own battery and from the weight you feel like you're wearing a motorcycle helmet. The technology, however, is not ready yet. The problem is the cables for glasses of this type and the weight for glasses with a battery. You choose what to focus on and decide accordingly what to get. Generally, those who think they will stop using a screen may need to wait a bit.

Finally, something I know concerns a lot of people is the size and the glasses someone may already wear. The only adjustment available for the glasses is the three different nose pads. There is no adjustment based on interpupillary distance (ID), which is why the glasses come in two sizes. This means that those who have a large or small distance between their eyes need to measure it in order to choose the correct size of glasses. Anyone who has had prescription glasses for myopia or presbyopia can find this distance (ID) from their optician's records. For myopia, the package includes a frame that can take myopic lenses (your optician can make the lenses if you give them the frame) and fits onto the glasses. For presbyopia, nothing is required (confirmed, I am presbyopic) because these glasses are like watching a television from several meters away, so there is no issue.