Shimano 105 R7000 vs Shimano 105 R5800: what are the key differences?

Shimano 105 R7000 vs Shimano 105 5800: what changes has Shimano made and what are now the key differences between new and old 105

Shimano 105 R7000 vs Shimano 105 5800: what changes have shimano made and what are now the key differences between new and old 105