1. Different characteristics: Sea lions are smaller in size, with body length generally not exceeding 2 meters. The Steller is the largest species of the sea lion family. Males are 310-350 centimeters long and weigh more than 1,000 kilograms. Walruses have large bodies, thick and wrinkled skin, sparse bristles, small eyes, and poor vision. It has two long teeth.

2. Different habitats: Walruses mainly live in temperate waters in the Arctic or near the Arctic. Sea lions are found in the cold temperate waters of the North Pacific, including the Falkland Islands and the coast of South America from Tierra del Fuego north to Rio de Janeiro in Brazil and Lima in Peru.

3. Different habits: Sea lions feed on fish, squid, jellyfish and clams. They also like to eat krill, and sometimes even eat penguins when they are hungry. Walruses like to forage on shallow sea coasts where molluscs are abundant on gravel substrates, and the mustaches on their snouts can be used to help detect food in the mud. The feeding habits of walrus are relatively mixed, but they do not eat fish. They mainly feed on lamellibranchial molluscs, and also prey on squid, shrimp, crabs and worms.

For the above content, please refer to Baidu Encyclopedia - Walrus