You might need a lifelog - a record of the sights and sounds of your life, recorded by a really cool medallion that has a variety of uses. Check it out.
(Ubiquiti FrontRow camera unboxing, setup and use video)
FrontRow features cameras on both sides. The primary, 8MP camera provides a 140º wide-view lens that, combined with its microphone array, allows for more complete capturing of experiences. It records Full HD 1080p video with optical image stabilization. It also has a speaker. In addition, an easy-access, clickable media button is used to start and stop many of FrontRow’s functions.
Moreover, the device has a standby time of 48 hours. It is capable of capturing in story mode (time-lapse capture) for 16 hours and in live streaming mode for two hours. Furthermore, with its USB Type-C connector, FrontRow can be charged on the go using Type-C smartphones. Specs state it has a charge time of around 20 minutes.
The life recorder from Roger Zelazny's 1966 novel The Dream Master is the earliest reference to this idea in science fiction that I know about.
Devotees of Charles Stross' 2007 novel Halting State refers to the idea of a lifelog and how it would work in reality.
Since this device also uploads video to the internet and (I believe) uses the Periscope service, I'm guessing that you might want to add a reference to ideas like the true-vu lenses from David Brin's 1990 novel Earth.
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