My most important criteria were:
* Compact housing / light weight / no interchangeable lenses -> fully met, 5 stars
* Above-average image quality -> true 4 stars
* Good performance in low light -> mostly met 3.5 stars
* Photography with bokeh (shallow depth of field) possible -> met 4 stars
* Good quality video -> overachieved (with minor degradation in codec [AVCHD]) 5 stars
As a result, the Hervoragende video quality with the above-average for the size of the camera image quality and small size has been crucial. From the video quality I'm really excited.
The optical image stabilization helps when combined with the speed of the camera is not bad too good snapshots without flash in.
For the sensor size: Fortunately merely increasing the number of pixels on tiny sensors is a development of the past. Better image quality than that of the Nikon D700 with "only" 12 megapixels on a full-frame sensor I have not yet seen. The built here sensor is approximately 4 times as large as a "standard" 1 / 2.3 inch sensor a normal compact. About twice the size (area) are Micro Four Thirds sensors (eg Panasonic), an APS-C sensor (eg SONY NEX) is more than three times as large.
In addition to the quality of the optics and the quality of the sensor itself (hard to estimate) is the size of each pixel is still a good indicator of the image quality in low light. The quality of optics and sensor is above average in the RX100.
Who the size of the camera or the video quality is less important than me, so the other cameras are recommended:
* A Sony NEX-3N provides APS-C sensor size in small size at a good price
* The Fujifilm X-A1 provides the best photo quality, I have ever seen in a camera system
* The Panasonic GM-1 has the same size as the RX100 with MFT sensor format and interchangeable lenses
Other compact snapping with their small sensors can not compete in my eyes from the picture quality here, who can make cuts here is certainly a model with a more ergonomic operation - the RX100 with its small buttons and the menu structure is not 100% grandmother fit. A recommendation for a different Compact I do not give (the comparison I have a Canon HS with 12 megapixels and a Panasonic Super Zoom). These cameras offer true daylight useful Ergegbnisse and satisfy other requirements with long zoom, but they practically function in low light without flash and no longer the video quality is despite "Full HD" modest.
-> Conclusion: The RX100 is for me the queen of the compacts (Allerding also twice as expensive as most others). It offers Hervoragende video quality is not enough in the photo, despite good quality quite a good system or SLR zoom. The operating concept is for tech-savvy people is no problem, but not self-explanatory. For the elderly because of the small buttons only limited use.
I feue me of many great photos and videos, which I would have done with the phone in low quality. An SLR or video equipment one just has not "always with you"!