watchOS 6.3 (17U216) for Apple Watch Series 4 (44mm, 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 January 26, 2021 Upload Date January 14, 2021 Filename 7f80d97fd20de573115c9b9d3cc88f150fc816da.zip Filesize 1.4 GiB Identifier Watch4,4
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