In terms of point and shoot cameras the sony rx100 brings a 1 inch type sensor to the party and canon has released the not quite a compact g1 x with a 1 5 inch sensor.
Canon 1 inch sensor camera.
Many other manufacturers including canon panasonic and leica have their own 1 sensor cameras available.
The sensor is smaller than the 1 5 inch high sensitivity cmos in the powershot g1 x mark ii a dt recommended camera but it has a higher resolution at 20 2 megapixels the same sensor as the.
Canon powershot g9 x mark ii compact digital camera w 1 inch sensor and 3inch lcd wi fi nfc bluetooth enabled silver visit the canon store 4 4 out of 5 stars 300 ratings.
Canon powershot g9 x mark ii compact digital camera w 1 inch sensor and 3inch lcd wi fi nfc bluetooth enabled black 6 30in.
As for 1 type sensor cameras there are a lot of panasonic compacts.
The most current version of this 20 1mp 1 cmos sensor complete with stacked architecture and back illuminated design can be found in the sony cyber shot rx100 va and vi.