The Apple ecosystem is a premium device lineup that is undoubtedly minimal and stylish. That goes doubly for the Apple Watch, which is maybe the first Apple device to actually be a true “fashion accessory.”
That translates to partnerships with firms like Nike or Hermes. It also means well-designed, first-party accessories made by Apple. But the popularity of the Apple Watch also means that the market is pretty much flooded with third-party accessories. And undoubtedly a lot more options than you’d be able to find for other devices.