LOL Re NOK and too many good news.  The Rodney Dangerfield of stocks. 

As to HMD Global, the company that brands its Phones with the NOK name:  All their offerings are Android based. Last year they sold over 80M phones (feature and Smart Phone varieties).

As to your second question, IMO it will be until late 2020 to early 2021 when 5G will be mainstream.  I would wait until at least then, the first 5G phones will be expensive, I would want to wait until all brands of phones have plenty of models, the pricing is likely to be much better at that point.