Yes, Nokia 7.1 does have the Corning Gorilla Glass 3 display protection.
Yes, you can play 4K videos direct on Nokia 7.1 - thanks to its HDR10 compliant display technology.
Yes, Nokia 7.1 does have the portrait mode.
Nokia 7.1 is not yet tested by DxOMark and hence we really cannot comment anything about it right now. But since the phone comes with CarlZeiss optics, we are sure that the phone is with decent camera quality.
Nokia has quietly released one of the most exciting inexpensive phones of the year in the Nokia 7.1, a well-designed phone that delivers first-rate performance.
With the Nokia 7.1, the brand continues its run of impressive mid-range phones carrying close-to-stock Android. While the phone has weaknesses, overall it offers better quality and features than you would expect at this price.