In "Demon Slayer: Kimetsu no Yaiba," both Sanemi Shinazugawa and Kyojuro Rengoku are powerful Hashira, each with their own strengths and durability.
Sanemi, as the Wind Hashira, has a strong and resilient fighting style, and his ability to use Wind Breathing techniques gives him a tactical advantage. His character also demonstrates a high level of pain tolerance and endurance during battles.
On the other hand, Kyojuro Rengoku, the Flame Hashira, is known for his fierce fighting spirit and unwavering dedication. He showcases immense physical endurance during his battles, particularly against powerful demons like Akaza.
In terms of sheer durability, Rengoku has shown impressive resilience during critical battles, demonstrating a capacity to withstand heavy damage and keep fighting. Sanemi, while also durable, often relies on speed and agility alongside his resilience.
Ultimately, comparing their durability can be subjective, as it may depend on the specific circumstances of their fights. Both characters have shown remarkable endurance, but Rengoku's fight with Akaza exemplifies his exceptional durability in the face of overwhelming odds.