Greenland shark is about 1.07× longer by these reference values.
These animals are effectively close in maximum-length terms, so measurement uncertainty can matter more than the apparent difference. White shark's weight reference is about 2.2× heavier.
ON THE SAME SCALE
Human. Bus. Whale.
Pick your reference.
Length bars use upper comparison values and do not show body depth, tail proportion or typical adult size. A long thresher tail, for example, does not equal whale-shark body mass.
THE NUMBERS
Side by side.
WHAT THE DATA CAN SAY
Size is not the whole animal.
Length and weight
Greenland shark is represented by confirmed to about 6.4 m / 21 ft; White shark by about 6 m / 20 ft. Age and upper mass involve uncertainty; length is better documented. Maximum length and mass are exceptional upper-end figures.
Bite evidence
Greenland shark: TuffShark found no defensible species-level bite-force estimate to display. White shark: A 3-D finite-element model predicted the bite of a very large individual; it was not measured on a living shark.
Living versus extinct
Both species are living, but record-sized individuals are rare. These upper references should not be read as normal adult size.
Ecology changes the matchup
The age estimate is extraordinary; a dependable bite-force figure is not available. Its headline bite number is a computer model, not a live-animal measurement.
TRACE THE CLAIMS