Most Apple sport bands have 38/40/42/44mm & S/M or M/L. No Apple logos.
Apple sport loops have 38/40/42/44mm. No Apple logos.
Nike bands/loops have Apple & Nike logos and 38/40/42/44m.
Woven Nylon have "WOVEN NYLON" and 38/42mm.
Leather loops have (M) or (L) and 38/40/42/44mm along with "NATURAL LEATHER" and a leather symbol, along with "Assembled in China" on the metal connector.
Leather Buckle has mm size and "NATURAL LEATHER" and leather symbol.
Some bands have "Assembled in China" on them.
Link Bracelet has "316L Stainless Steel" 38/42mm and "Assembled in China"
Milanese loop has 38/40/42/44mm and "Assembled in China"
Some bands have serial numbers (
see thread).