
The Credit Card and AAA Battery are most easily told apart by their overall size. On height, the Credit Card measures 54.0 mm against the AAA Battery's 44.5 mm — about 9.5 mm more. On width, the Credit Card measures 85.6 mm against the AAA Battery's 10.5 mm — about 75.1 mm more. On thickness, the AAA Battery measures 10.5 mm against the Credit Card's 0.8 mm — about 9.7 mm more.
Only the AAA Battery lists a weight (11 g), so a direct comparison is not possible.
| Metric | Credit Card | AAA Battery | Diff |
|---|---|---|---|
| Width | 85.6 mm | 10.5 mm | +75.1 mm |
| Height | 54.0 mm | 44.5 mm | +9.5 mm |
| Depth | 0.8 mm | 10.5 mm | -9.7 mm |
| Weight | N/A | 11 g | - |