Access Account and Manage Orders
Yes, Nokia 8.1 does have the 3.5 mm headphone jack. It also has Bluetooth A2DP support.
Nokia 8.1 has LPDDR4X RAM.
There is no official communication from the company if Nokia 8.1 will be able to work on the 5G network or not.
Nokia 8.1 comes with the Android Pie out of the box. You will also get Android updates for the next 2 years.