The latest Google Nest Hub smart display has the ability to track your sleeping habits using radar, and now it would seem that Amazon is prepping a similar feature for its Echo devices, according to a regulatory filing.

As reported by Bloomberg, Amazon has applied to the Federal Communications Commission (FCC) in the US for permission to use a radar sensor in its future products, in order to sense motion and “enable contactless sleep tracing functionalities”.

The same motion-sensing technology could also be used to control an Echo device using hand gestures – again something you can go with the Google Nest Hub and indeed the Google Pixel 4 phones, thanks to the miniaturized radar sensors on board.
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