I would consider the N9 for Drive (an excellent offline navigation program) alone. It has a lot of other nice features such as the AMOLED display. On the other hand, it was a stillborn and there are never going to be any OS updates. Luckily it is quite mature as it is.

If you want a similar device that is under active development but has still some way to go to reach that level of maturity, you don't mind that it's a bit overgrown for a phone and is twice as expensive as a used N9, go for a Jolla.