The Boomerang app takes a burst of 10 photos to create a short video loop.

Just people walking, talking and … blinking a lot.

The lives of tourists, travellers and photographers may be heavy on gadgetry for now, but a new concept from Sony promises a completely hands-free way of capturing views and recording precious memories.

A patent registered recently by the Japanese electronics giant appears to show a kind of smart contact lens that can the wearer can use to take photos and videos purely by blinking.

The phones snap a JPEG photo and records a short MP4 video, so they re not exactly savvy on storage space Live Photos is activated by default on the iPhone, but Motion Photos is optional on the S7 .

As well as Sony s clever camera, other implants on the horizon include digital tattoos that could unlock hotel rooms, and implanted RFID chips that could replace passports.

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