A groundbreaking camera uses five in-built sensors and software developed by Microsoft to chose the best moment to capture an image without any intervention from the user.
The high-resolution pictures, which can number 2000 in a day, can then be combined to create a visual record of an event like a party, a music festival or a typical day in the life of the owner.
The device, called the Autographer, which can be worn around the neck, clipped to clothing or placed in a particular vantage point, is the first consumer device from British company OMG, whose stop-motion technology is used in fields ranging from computer game development to surveying roads.
The company originally developed a version of the Autographer as a memory aid for people with dementia, but said it decided to launch it to the broader market after finding users and their families were also using the devices to record and remember special occasions.
OMG chief executive Nick Bolton said the camera occupied a space between stills photography and video.
"It can capture really meaningful single images, but there's actually something about watching the day back in sequence," Bolton said. "It tells a story about the day you've just experienced."
The camera will be sold directly to the public for £399 (NZ$787) from November, Bolton said. He added that potential launches in the United States and Japan could follow.