Perfectly round and sized at a comfortable 1.2 inches ( 42mm total case size) , it’s an optimal size to fit on a large variety of wrist shapes and sizes. It’s in between the two Apple Watch sizes, and comes in two designs, a sporty version and a Classic version.
The Classic also has a ribbed watch face and traditional lugs, making it compatible with any 20mm watchband. There are versions of the Sport with added 3G/4G connectivity as well.