The Sport Earbuds have the same IPX4 splash-resistant rating as the QuietComfort Earbuds, are equipped with Bluetooth 5.1 (my connection was rock solid) and share a similar design aesthetic, with three color options available. To be clear, they have active noise canceling and last-- six hours as well as wireless charging. While they do stick out from your ears, they're noticeably smaller and lighter than the QuietComfort Earbuds and their case is about 30% to 40% smaller. The case still isn't as small as the cases for such competitors as the AirPods Pro, Samsung Galaxy Buds Plus, Galaxy Buds Live and Jabra Elite 75t. But it feels reasonably compact.