FIRMWARE DETAILS

watchOS 27.0.1

Build: 24R365Sep 28, 2026Delta OTA

Stable

View details

Filename: 6421795b8e526d6522e8b56c7fb219c630e10bc170927ff0d351c8f68df7f5e6.aea
File size: 2.42 GB
File type: Delta OTA
Download host: updates.cdn-apple.com
Link availability: Not verified
Source reports active
Last link check: Not checked
SHA-256: 1b0190ab4d030a51d07622218a80cdabbc7766576a0a85351637b7d29abd1b4f
SHA-1: Not reported
Required starting builds: 23U5025e
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 3 Watch7,12

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: 42afd5a3fced6a564582e43a9ab75e66