watchOS 6.3 (17U216) for Apple Watch Series 4 (44mm) ✗ 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 c6f6c36bb8e0c7f7e9787f7c01beb20a0287c14f.zip Filesize 1.4 GiB Identifier Watch4,2
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