
The Apple Watch Ultra 3 and Credit Card are most easily told apart by their overall size. On height, the Credit Card measures 54.0 mm against the Apple Watch Ultra 3's 49.0 mm — about 5.0 mm more. On width, the Credit Card measures 85.6 mm against the Apple Watch Ultra 3's 44.0 mm — about 41.6 mm more. On thickness, the Apple Watch Ultra 3 measures 14.4 mm against the Credit Card's 0.8 mm — about 13.6 mm more.
Only the Apple Watch Ultra 3 lists a weight (61.4 g), so a direct comparison is not possible.
| Metric | Apple Watch Ultra 3 | Credit Card | Diff |
|---|---|---|---|
| Width | 44.0 mm | 85.6 mm | -41.6 mm |
| Height | 49.0 mm | 54.0 mm | -5.0 mm |
| Depth | 14.4 mm | 0.8 mm | +13.6 mm |
| Weight | 61.4 g | N/A | - |