watchOS 5.3 (16U5558b) 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 June 24, 2019 Upload Date June 20, 2019 Filename bb5c07eb75b95203e9fbc861cead3e4158daae31.zip Filesize 1.3 GiB Identifier Watch4,4
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