
The Bose QuietComfort Ultra and Credit Card are most easily told apart by their overall size. On height, the Bose QuietComfort Ultra measures 153.0 mm against the Credit Card's 54.0 mm — about 99.0 mm more. On width, the Bose QuietComfort Ultra measures 191.0 mm against the Credit Card's 85.6 mm — about 105.4 mm more. On thickness, the Bose QuietComfort Ultra measures 81.0 mm against the Credit Card's 0.8 mm — about 80.2 mm more.
Only the Bose QuietComfort Ultra lists a weight (254 g), so a direct comparison is not possible.
| Metric | Bose QuietComfort Ultra | Credit Card | Diff |
|---|---|---|---|
| Width | 191.0 mm | 85.6 mm | +105.4 mm |
| Height | 153.0 mm | 54.0 mm | +99.0 mm |
| Depth | 81.0 mm | 0.8 mm | +80.2 mm |
| Weight | 254 g | N/A | - |