watchOS 5.1 (16R5559d) for Apple Watch Series 3 (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 September 18, 2018 Upload Date September 14, 2018 Filename a4dc5ec585bb7a736e7ddbbb76fd2d372fcb1fe7.zip Filesize 1.3 GiB Identifier Watch3,4
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