In short, there's an Apple Watch band out there for everyone. New for 2024, the Apple Watch Series 10 is available ... a 38mm, 40mm, 41mm, or 42mm band from that size lineup will fit any watch.
The Apple Watch Series 9 is on sale starting at $329, but most case and band options are already sold ... start at $299 for the version with a 41mm display, and the 45mm model starts at $359.