The Galaxy Buds 2 Pro offers a few key improvements over the original Buds Pro model. Most notably, the new earbuds feature a more compact design, which Samsung says is now 15% smaller. In addition, the Buds 2 Pro will support 24-bit audio playback, which could result in better sound quality if you're a discerning listener. That said, to take advantage of this feature, you'll also need a music service and playback device that supports it. Total battery life is also rated slightly better on the new model, with a total of 30 hours listed for the Buds 2 Pro versus 28 hours for the Buds Pro.  IPX7 water and sweat resistance is carried over from the original model, as is active noise cancellation. It's not yet clear if ANC performance has been improved at all.