watchOS 5.1.3 (16S5531a) for Apple Watch Series 3 (38mm, 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 December 19, 2018 Upload Date December 17, 2018 Filename 6a1246ac8ed542627db268f275b20c2d3aabe248.zip Filesize 1.3 GiB Identifier Watch3,1
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