Compared with blue whale, great white shark is bigger, because the length of great white shark is only about 4-5.9 meters in adulthood, and even if there are some larger great white sharks, the length can only be about 6.4 meters at most, and the weight is generally 3200 kilograms. Blue whales are relatively large in size. They already belong to large creatures in the ocean. As adults, their body length can reach about 30 meters and their highest weight can reach 150 tons. Therefore, great white sharks are larger than blue whales.

Although great white shark is larger, its character is fierce, and even if it meets some blue whales slightly larger than itself, they may be tied. If it is a great white shark and a blue whale of the same size, then the blue whale can't beat the great white shark.

However, most blue whales are relatively large, and when great white sharks meet blue whales whose size is too different from their own, they can't resist. Therefore, it is not accurate to say which one is more powerful, because their combat effectiveness is different in different body shapes and environments.