Have you wondered how big Apple Watch will actually be on your wrist? Apple have allowed us to see the actual size of the Apple Watch on your iPhone.
1. Download the "Apple Store" app from the app store.
2. Select "Apple Watch" from the home screen.
3. At the top right select "View Pricing."
4. Select "Compare case sizes."
The app will give you the actual size of the 38mm and 42mm Apple Watch.