watchOS 6.3.1 (17U224) for Apple Watch Series 2 (38mm) ✓ This OTA is 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 February 2, 2026 Upload Date January 28, 2026 Filename 061a452ec601702b7f278983fdabdd445ef5757f.zip Filesize 1.4 GiB Identifier Watch2,3
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