watchOS 4.1 (15R5843a) for Apple Watch Series 3 (42mm, LTE) ✗ 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 October 16, 2017 Upload Date October 12, 2017 Filename fa719fab3b674174e0f9cc8a8e0d3843f6fa1418.zip Filesize 1.6 GiB Identifier Watch3,2
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 1:25:22 pm UTC on Monday, April 6, 2026 and built at 10:20:16 am UTC on Saturday, April 18, 2026.