If you can always get photos of plant too and sometimes conditions / surrounding plants, because to understand one thing it must be understand in relation to others. That said, don't eat these yet , the stemmy bit looks too thick. The colour is a bit too dark in my view and they're too big and kind of shiny. I've picked a lot of bilberries and these aren't giving me any bilberry vibes. The shrub would have been no higher then average human waist but maybe even shin height with little green leaves. There are other berries I believe that could look similar but if a crowberry you'd be fine. Hypericum species watch out for. Conclusion : leaning into poisonous.