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I use my Suunto 9 for precisely this. Have used it for long runs without a map and it's pretty good. Not perfect, but often that's due to the route plotted not matching what's on the ground accurately. Micro navigation isn't really possible but for the most part you can see where you should be turning, when you are off course and how to correct. With a map to back you up you can't really go wrong.
They have recently updated the software to do turn by turn navigation. I haven't tried it but I think you need to be connected to your phone and it uses komoot app.
Coros seem to be popular these days, but since moving to a suunto 9 I'm not looking back!
Good app, easy sync to app and Strava, tons of features for navigation etc. Plus the battery seems to last forever!