Samsung needs to improve how they charge their watches . The second negative is that it does not go up nor down curbs or stairs easily. I havent been able to afford a new pair yet so I kept them for 3 months total and they have completely imploaded. I havent had them very long so I cant speak to their durability, but so far I would buy them again. They hold more than I initially thought since they look sorta shallow in the photos. The cord length on the ears is puzzling and annoying. Perfect replacement for my Sony Headphones, lost them on holiday and ordered a replacement, these are identical, perfect replacement or spare! As you can see from the pictures, my hallway is very narrow and theres a closet in front of the shoe rack. Its quite bulky, really. From the unboxing to the immediate pairing with my iPhone.