Smart glasses: what are they and how do they work? The 2026 guide

They are called smart glasses, connected glasses, lunettes connectées in French or Smartbrille in German. Yet behind these names lie very different products: some film, others display information in front of your eyes, and others still act as a giant screen for your console. Here are the essentials to help you find your way.

A simple definition

Smart glasses are glasses that look like an ordinary frame but contain electronics: microphones, speakers, sometimes a camera, sometimes a small display. They almost always connect to your smartphone, which acts as the “brain” and provides internet access. Most now include an artificial intelligence assistant that you control by voice.

The three main families of smart glasses

1. Camera and AI glasses

This is the most popular family, led by Ray-Ban Meta and Oakley Meta. They have no display: you take photos and videos at eye level, listen to music, make calls and ask Meta AI questions, and it can “see” what you are looking at thanks to the camera. The Ray-Ban Meta Gen 2, for example, films in 3K with a 12-megapixel sensor and lasts up to 8 hours in typical use. Xiaomi offers a comparable model, the AI Glasses, for now reserved for China.

2. Heads-up display glasses

Here, a small display projects text or images into your field of view: notifications, directions, translation as subtitles, teleprompter. Even Realities G2 shows monochrome text in both lenses and deliberately does without a camera. Meta Ray-Ban Display, for its part, combines a camera with a small colour display in the right lens, controlled by a wristband that detects hand gestures.

3. Display glasses (so-called “AR”)

The Xreal One Pro or RayNeo Air 4 Pro are often filed under the “AR glasses” label. In practice, they are above all portable screens: plugged via USB-C into a phone, a computer or a console, they show a virtual image equivalent to a very large TV. Ideal for watching a film on a plane or gaming on the move, but these are not glasses to wear all day in the street.

Smart glasses, augmented reality, virtual reality: what is the difference?

• Smart glasses: an everyday frame that adds audio, photos, AI and sometimes a light display.
• Augmented reality (AR): virtual objects anchored in your real surroundings. True consumer AR glasses remain rare; Meta's Orion prototype, for example, is not on sale.
• Virtual reality (VR): a headset that cuts you off from the real world to immerse you in a 3D universe, such as the Meta Quest. These are not glasses.

What are they for day to day?

• Capturing memories hands-free, on a bike, on a hike or with your children.
• Listening to music and making phone calls without earphones in your ears.
• Translating a conversation when travelling (see our guide Travelling with smart glasses).
• Asking the AI a question about what you see: a monument, a dish, a sign.
• Tracking your sports performance, as with the Oakley Meta Vanguard.

Can you wear them with a prescription?

Yes, for most models. Ray-Ban Meta glasses accept prescription lenses, and some frames are designed for this from the outset: we explain it all in Smart glasses and prescription lenses.

And privacy?

Camera glasses signal recording with a small light visible to the people around you. It does not relieve you of asking for their consent before filming someone. If the camera bothers you, audio models or camera-free display models are a good alternative (read Audio glasses without a camera).

Which ones to choose to get started?

For a first pair, camera and AI glasses offer the best balance between style, uses and price. See our full selection of Ray-Ban Meta and Oakley Meta smart glasses, or compare the alternatives in our 2026 comparison.

Sources

• Meta, “Ray-Ban Meta (Gen 2) Available Now” – meta.com
• TechCrunch, “Smart glasses without a camera? Even Realities bets productivity beats recording everyone” – techcrunch.com
• Notebookcheck, “Meta Ray-Ban Display endlich auch in Deutschland verfügbar” – notebookcheck.com
• PC-WELT, RayNeo Air 4 Pro – pcwelt.de