The new Nexus 6P already rated as the second-best mobile phone camera

The new Nexus 6P, as well as the smaller 5X, come with a unique 12.3 MP Sony camera sensor, whose main virtue are the huge 1.55 micron pixels, collecting up to much more light than usual on smartphones. Google said that this imaging sensor was designed for compact point-and-shoots or camcorders, and is "unprecedented" in a mobile phone, and indeed we cam across an IMX377 sensor on Sony's website, under the compact cam section - it's a 1/2.3" unit that is 12.3 MP with 1.55 micron square pixels, so that might be the one they were referring to.