My camera is a Sony RX100 II. It measures only 1-1/2 x 2-1/4 x 4 inches. Two big advantages of this camera are: the size of its sensor, which is four times the size of the sensor in most point-and-shoot cameras; and its fast lens, which can open to f1.8 when not zoomed. You can get an idea of its size from the photo below.
BTW, since it is my only camera, I took the photo below with my iPhone in my other "studio"--the patio. I think it’s a pretty good photo for a phone camera, certainly good enough for posting to the forum.