The sample images look great!! Xiaomi's camera capabilities have undergone a quantum improvement since the release of the Mi Mix 2S ... and if these samples are indeed straight out of the camera (without any touching up) - they are definitely of exceptional quality. I wonder whether Xiaomi are using a 1/2.3" 20 MP sensor.
No way these shots come from f1.7 and f1.8.
This strong blue sky is seen on phones with f2.0 or smaller.
Shot of the lagoon is very underexposed for wide aperture.
my g5 takes better photos