Remove your Apple Watch and flip it to view the underside.
On the top or top right area, you'll find the size of your Apple Watch displayed in millimeters (mm).
![](https://cdn.shopify.com/s/files/1/0670/4709/6560/files/appleSizeGuide.jpg?v=1700645256)
![](http://hellostrap.com/cdn/shop/files/all-in-one-AppleWatchCase9_60x60.jpg?v=1700654818)
All-in-one classic Apple Watch Protection Case
$39.99
Starlight / 49mm (Ultra)
- Starlight / 49mm (Ultra)
- Starlight / 45mm (Series 7/8/9)
- Starlight / 44mm (Series 4/5/6/SE)
- Starlight / 42mm (Series 1/2/3)
- Starlight / 41mm (Series 7/8/9)
- Starlight / 40mm (Series 4/5/6/SE)
- Starlight / 38mm (Series 1/2/3)
- Transparent Clear / 49mm (Ultra)
- Transparent Clear / 45mm (Series 7/8/9)
- Transparent Clear / 44mm (Series 4/5/6/SE)
- Transparent Clear / 42mm (Series 1/2/3)
- Transparent Clear / 41mm (Series 7/8/9)
- Transparent Clear / 40mm (Series 4/5/6/SE)
- Transparent Clear / 38mm (Series 1/2/3)
- Black / 49mm (Ultra)
- Black / 45mm (Series 7/8/9)
- Black / 44mm (Series 4/5/6/SE)
- Black / 42mm (Series 1/2/3)
- Black / 41mm (Series 7/8/9)
- Black / 40mm (Series 4/5/6/SE)
- Black / 38mm (Series 1/2/3)
- Silver / 49mm (Ultra)
- Silver / 45mm (Series 7/8/9)
- Silver / 44mm (Series 4/5/6/SE)
- Silver / 42mm (Series 1/2/3)
- Silver / 41mm (Series 7/8/9)
- Silver / 40mm (Series 4/5/6/SE)
- Silver / 38mm (Series 1/2/3)
- Rose Gold / 49mm (Ultra)
- Rose Gold / 45mm (Series 7/8/9)
- Rose Gold / 44mm (Series 4/5/6/SE)
- Rose Gold / 42mm (Series 1/2/3)
- Rose Gold / 41mm (Series 7/8/9)
- Rose Gold / 40mm (Series 4/5/6/SE)
- Rose Gold / 38mm (Series 1/2/3)
- Navy Blue / 49mm (Ultra)
- Navy Blue / 45mm (Series 7/8/9)
- Navy Blue / 44mm (Series 4/5/6/SE)
- Navy Blue / 42mm (Series 1/2/3)
- Navy Blue / 41mm (Series 7/8/9)
- Navy Blue / 40mm (Series 4/5/6/SE)
- Navy Blue / 38mm (Series 1/2/3)
All-in-one classic Apple Watch Protection Case
Easy Installation Guide
How to change your strap