AI was indeed the USP of 665 when compared with 660. And thats what Xiaomi is promoting. Rest of the things are more or less the same as 660. Actually its good that they are using 665 over 700 series., It means they can price it more aggressively
I agree, Looks like A3 was not a prioritized product at all.... So settled for 665 here instead of 700 series. A minor clock down of 4 cores from 2.2Ghz to 2Ghz (Used only for resource intensive tasks like gaming) while the other efficiency cores are still clocked at 1.8Ghz. But 11nm architecture, upgraded GPU, DSP, ISP and AI engine gives it a really good lead over 660.
Also triple rear camera, in display fingerprint scanner and FHD+ display doesn't scream a lite version, so may be they decided to name this as A3 and bring a pro version instead with 700 series.
A2 is a solid device IMO, and there is no point of trading A2 with A3 yet