Question: what is the difference between the apple watch 4 and 3?
Answer: The biggest physical difference between the Apple Watch 4 and the Apple Watch 3 is the size of the body, as while the Apple Watch 4 comes in a choice of 40mm or 44mm, the Apple Watch 3 is available in a choice of 38mm or 42mm. ... In fact, even the 40mm Apple Watch 4 has a larger display area than the 42mm Apple Watch 3.