The upper half of each earbud doubles up as a touch panel, allowing you to adjust volume levels, control playback and toggle noise cancelling. While this is always a nice feature to have, I found the touch controls a bit too small and sensitive for my liking.
The Galaxy Buds also offer you wear detection, well kinda...as in if you remove the earbuds simultaneously, playback will pause, but it won't resume playback automatically when re-inserted. It's not a significant issue but just felt like an incomplete feature.
The earbuds get two microphones on the outside of each bud and one on the inside, and while they don't completely muffle out the sound around you, they do an excellent job of drowning out background noise when making voice calls and also picking up your voice.