FIRMWARE DETAILS

watchOS 27.0.1

Build: 24R365Sep 28, 2026Full OTA

Stable

View details

Filename: d90b094f3022f0334a096173f146dacb585848e25a30c669ae4960ea94fabff8.aea
File size: 4.23 GB
File type: Full OTA
Download host: updates.cdn-apple.com
Link availability: Not verified
Source reports active
Last link check: Not checked
SHA-256: 52798d90d0c4e247dc4fb07b8c9c37496682e8d24a7351d3936b9f1f9d5d744e
SHA-1: Not reported
Required starting builds: Not reported
Board restrictions: Not reported

OTA packages can require an exact starting build and board. A matching hardware identifier alone is not sufficient for installation.

Apple Watch Ultra 4 Watch8,1

Unknown

Signing is specific to the device and file. A signed build does not guarantee a downgrade or successful installation.

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 10:57 PM UTC
Record fingerprint: c87d089fbf6be2e6cfdaf994482e8469