Thor
Asgardian physiology grants Thor near-invulnerability to physical damage. He has survived direct exposure to a dying star, sustained combat with the Hulk, and endured the full power of the Infinity Gauntlet. His regenerative capabilities allow recovery from wounds that would be fatal to virtually any other being.
Thor's documented survival incidents include nuclear-level explosions, planetary impacts, and concentrated cosmic energy. His durability ceiling appears to extend into the stellar damage threshold.
Wonder Woman
Diana's Olympian-blessed physiology provides exceptional resistance to damage, though not absolute invulnerability. She has survived confrontations with Doomsday, endured Darkseid's omega effect, and demonstrated regenerative abilities significantly exceeding human capacity.
Her bracelets serve as a crucial durability supplement, capable of deflecting attacks that would otherwise overwhelm her natural resistance. Without them, her durability remains continental rather than planetary.