It depends on the tech and what you are using it for. LIDAR scanning with audio feedback wouldn't require a connection nor would glasses that allow you to zoom but features like OCR, voice controls, or live location details would. Source: over 2 years ago

Things like this require FDA approval: https://esighteyewear.com/. Source: almost 3 years ago

It seems as every g2a.com site wont allow me to enter. Source: 11 months ago

And if you don't know how to build by yourself, you can also pay those shops to do it for you. It might be around 10-15 rial without windows, and I advice you to buy windows key in g2a.com. Source: 12 months ago

It's either what you suggest or buying them in websites like g2a.com, recharge.com, etc. Source: about 1 year ago

Don't forget to add Windows to the list, you can find it pretty cheap on g2a.com, it's a key reseller, only ~$25 bucks for a copy of windows vs $100+ retail. Source: about 1 year ago

I am really poor like so poor that saving up 5.50 euroes was smthn, so I take my money and go to g2a.com only to accidentally click on the wrong card and buy a steam TL currency gift card. I'm so sad that now I won't be able to get those 5 euroes to my acc it will take at least a week for me to re-save up. Source: about 1 year ago