The digital-only Vault edition comes with the game itself, any applicable preorder bonuses, plus the following:
Nemesis Operator Pack. 4 Operator Skins: Marakov, Warden, Price, adn Ghost.
2 Weapon Vaults.
BlackCell (1 Season) + 30 additional Tier Skips. BlackCell includes: Battle Pass, 20 Tier Skips, 1,100 CP, and more.
Vault edition is worth it if you care about weapon blueprints, emblems, calling cards, XP tokens, etc.