How to Use 'Circle to Search' on an Android Phone
Briefly

Part of what makes Circle to Search so helpful is you can use it anywhere: In your web browser, in a social media feed, or in a text conversation...
A blue tint covers the screen, and you're ready to start circling. Although you wouldn't know it by the name of the feature, you can either circle whatever you want to run a search on, or scribble over it, or just tap it...
In addition to images, you can also search pieces of text, headlines, book titles, or entire paragraphs. It can even be used on math equations; tell your kids they can use it when they get stuck on their physics homework.
Read at WIRED
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