Sony RX100

Sony RX100
 *You might also be interested in the Sony RX100 III Review
The Sony Cyber-shot DSC RX100, to give this camera its full moniker, is Sony's latest shot across the bow of the camera industry. While they have never been a company to shy from forging new product categories, with the RX100 Sony hasn't so much created a new category (small camera – large sensor) as they have redefined it.
This is a true pocket camera, even a shirt pocket – or your jeans pocket without a bulge . The sensor is a 1" CMOS, which makes it as much as 4X larger than a typical point-and-shoot and two to three times larger than its erstwhile competitors, the Fuji X10, Canon S100 and Olympus XZ-1. Only the Canon G1X has a larger sensor, but since that camera is not by any stretch of the imagination a pocket camera I only mention it here for completeness.
Oh yes, did I mention that the RX100's sensor is 20 Megapixels and that the lens, which fully retracts into the body, is a Carl Zeiss branded  28-100mm eq...