Which primary device

Hi all. I recently purchased a used Fenix 7SS and already have an instinct 2 non solar model. I will continue to use mostly the instinct for activity recording cause training plan right now is something like:

4/5 strength activity a week ( Instinct )

2/3 runs a week  ( Fenix )

As most of the activities will be monitored with the instinct 2  which is the best way to keep track of all the stats with the unified training status? Choose the instinct as the primary device or pick the Fenix for its extra features ? ( I’d wear it during night ) 

Thanks