Pixel 4 is our latest phone that can help you do a lot of stuff, like take pictures at night or multitask using the Assistant. With on-device AI, your camera can translate foreign text or quickly identify a song that’s playing around you. Everything needed to make these features happen is processed on your phone itself, which means that your Pixel can move even quicker and your information is more secure. 

Lens Suggestions

When you point your camera at a phone number, a URL, or an email address using Pixel, Google Lens already helps you take action by showing you Lens Suggestions. You can call the number, visit the URL or add the email address to your contact with single tap. Now, there are even more Lens Suggestions on Pixel 4. If you’re traveling in a foriegn country and see a language you can’t read, just open your camera and point it at the text, and you’ll see a suggestion to Translate that text using Lens. For now, this works on English, Spanish, German, Hindi, and Japanese text, with more to come soon. 

There are also Lens Suggestions for copying text and scanning a document, which are processed and recognized on-device as well. So if you point your camera at a full page document, you’ll see a suggestion to scan it and save it for later using Lens. 

Source: https://www.blog.google/products/pixel/on-device-ai-with-pixel4/