Bose QuietComfort Headphones vs Bose QuietComfort Ultra Headphones (2nd Gen)

The two products' specifications row by row. Rows where they differ are marked; a missing value is unknown, never equal.

2 differences
SpecificationBose QuietComfort HeadphonesBose QuietComfort Ultra Headphones (2nd Gen)
Wearing styleDiffersAround EarAround Ear Circumaural
Connectivity technologyDiffersBluetoothBluetooth 5.4
Product typeSameHeadphonesHeadphones
Microphone typeSameBuilt-in MicrophoneBuilt-in Microphone