https://finance.yahoo.com/news/apple-watch-series-4-hands-big-screens-big-improvements-235520050.html

Despite the increased sizes, the Series 4 still fits nicely. It didn’t feel much larger than the Series 3, but the 44mm’s screen looked far bigger than its predecessor’s. When I strapped the Series 4 to my wrist it felt like I was just wearing a screen, which is exactly what I’ve always wanted from a smartwatch." data-reactid="26">Despite the increased sizes, the Series 4 still fits nicely. It didn’t feel much larger than the Series 3, but the 44mm’s screen looked far bigger than its predecessor’s. When I strapped the Series 4 to my wrist it felt like I was just wearing a screen, which is exactly what I’ve always wanted from a smartwatch.

Apple has put that larger screen to work, too, by creating new watch faces that support the Series 4’s edge-to-edge design. Now complications, such as heart rate, calendar and steps, curve around the screen’s corners.  The smaller screen on the older Watches made that impractical. Photos, something that you could already view on the Series 3, look far better on the Series 4 thanks to its increased display size, as well." data-reactid="27">Apple has put that larger screen to work, too, by creating new watch faces that support the Series 4’s edge-to-edge design. Now complications, such as heart rate, calendar and steps, curve around the screen’s corners.  The smaller screen on the older Watches made that impractical. Photos, something that you could already view on the Series 3, look far better on the Series 4 thanks to its increased display size, as well.