A leaked presentation for the Honor 30 shows that its main camera will have a large Sony sensor – 1/1.3″, essentially the same size as the 1/1.33″ sensor of the Samsung Galaxy S20 Ultra.
However, the Sony sensor will have larger pixels, 1.2µm (up from 0.8µm on the Samsung). This should give the Honor the edge in low-light shooting. And it should have an advantage over the Oppo Find X2 Pro too, which uses a Sony-made 1/1.43″ sensor (48MP resolution, 1.12µm).
Sensor size comparison between the Honor 30 and recent Android flagships
The resolution is not listed, but it should be 48MP…