FIRMWARE DETAILS
watchOS 27.0 beta 6
Build:
24R5353aAug 17, 2026Delta OTABeta
View details
- Filename
521c4f07beebfe36f6073faafdf5e6c67805f081662eccfb19fa72955ea9e1d5.aea- File size
- 2.21 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
54ce454935a27e5d1258c01edeb429e18a0892973d4f6acffdca4b8b33aafe2b- SHA-1
df98ef1f9609c6cd5dab892ea4eb2ca03aec6fa5- Required starting builds
23T5558e- 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 10 (GPS, 42mm)
UnknownWatch7,8Signing 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%3B24R5353a.json ↗
MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 10:57 PM UTC
Record fingerprint: dcdabfee3b751d286ed5750e65109264