FIRMWARE DETAILS
watchOS 27.0
Build:
24R364Sep 14, 2026Delta OTAStable
View details
- Filename
f10b8bbdaafb1a6e5f671f50cc1088b088880a1b7a031ed6513222699b0201f5.aea- File size
- 3.29 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
c54525dd6cf1e1b03f4365903c6cb8b11b722895c95033c609dbe4275481a575- SHA-1
Not reported- Required starting builds
21S644- Board restrictions
Not reported
OTA packages can require an exact starting build and board. A matching hardware identifier alone is not sufficient for installation.
Compatible hardware (1)
Apple Watch Series 9 (GPS, 41mm)
UnknownWatch7,1Signing is specific to the device and file. A signed build does not guarantee a downgrade or successful installation.
Source provenance
AppleDBhttps://api.appledb.dev/ios/watchOS%3B24R364.json ↗
MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 12:56 PM UTC
Record fingerprint: ddd501aac8d8ed2c1be9e3399c243842