The rounded rectangular shape of the apple watch makes it hard to compare directly with your average round watch but in the traditional watch world.
Apple watch 42mm vs 40mm size.
There are the 40mm and the 44mm.
The newer apple watch series 4 series 6 models come in 40mm and the 44mm though you can still buy the older models series 3 or lower with the.
And no matter if you are interested in buying steel ceramic or aluminum series 1 watch or series 3 watch.
38mm apple watch and 42mm apple watch.
There are basically two sizes of apple watch available i e.
38mm v 42mm 40mm v 44mm.
The 40mm is generally advised if you have a wrist size between 130 200mm 5 1 7 9 inches.
The 44mm is generally advised if you have a wrist size of 140 220mm 5 5 8 7 inches.