getIPSW
Apple Watch Series 4 (40mm) Apple Watch Series 4 (40mm) Watch4,1
OTA Update Unsigned 17R605

watchOS 6.0.1

OS
watchOS
Version
6.0.1
Build ID
17R605
File Size
686.12 MB
Release Date
2019-09-30T17:15:06Z
Update Type
Normal release
Delta update - requires 5.3 installed first.

About This Update

watchOS 6.0.1 (build 17R605) is an official Apple over-the-air update for the Apple Watch Series 4 (40mm), released on 2019-09-30T17:15:06Z. The update package is 686.12 MB. This is a delta (partial) update that requires 5.3 to already be installed on the device - it cannot be applied from scratch. This update is no longer signed by Apple, meaning it can no longer be downloaded and applied on-device through Settings.

The OTA payload file is a18fe3004d0490d4cf4616c1d5c97c3fa24434b2.zip.

Direct URL

http://updates-http.cdn-apple.com/2019FallFCS/patches/061-23494/9D776650-E1FD-11E9-BC5F-D5DEE1B6741B/com_apple_MobileAsset_SoftwareUpdate/a18fe3004d0490d4cf4616c1d5c97c3fa24434b2.zip

Filename

a18fe3004d0490d4cf4616c1d5c97c3fa24434b2.zip

Other Devices

© 2026 getIPSW. Firmware data provided by ipswdl.com API. Not affiliated with Apple Inc.