see question in subject line
Fenix 5x bands work on Fenix 6x should be the same for all, 5 series bands fitting the corresponding 6 series.
Correct - 5x bands are interchangeable with 6x bands (26mm), 5 are interchangeable with 6 (22mm), and 5s are interchangeable with 6s (20mm). All use the the same fastening system.
fenix 3, 5X, 6X - all one big 26mm QuickFit family.
