watchOS 4.2 (15S5102b) for Apple Watch (42mm) ✗ This OTA is not signed. OTA firmwares cannot be restored to. IPSW Downloads collects them for
potential future use. They might also be useful if you're doing research.
Release Date November 17, 2017 Upload Date November 15, 2017 Filename b94538905a797c2a2ef423f4afba1c9f9efae33d.zip Filesize 1.1 GiB Identifier Watch1,2
All information on these pages is automatically updated. When you click on any Apple Software link on
the site, you are redirected to an Apple server. We do not (and never will) mirror these files. All trademarks are the property of their respective owners. IPSW Downloads is not affiliated with Apple Inc.
© 2026 IPSW Downloads
This page was last modified at 1:24:26 pm UTC on Monday, April 6, 2026 and built at 10:18:51 am UTC on Wednesday, April 8, 2026.