watchOS 5.1

watchOS

Version

5.1

Build ID

16R5584a

File Size

59.64 MB

Release Date

2018-10-15T17:10:17Z

Update Type

Normal release

Delta update - requires 5.1 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 3 (42mm) →

About This Update

watchOS 5.1 (build 16R5584a) is an official Apple over-the-air update for the Apple Watch Series 3 (42mm), released on 2018-10-15T17:10:17Z. The update package is 59.64 MB. This is a delta (partial) update that requires 5.1 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 5ae77f16806cfdc4984655e818404343186ab154.zip.

Direct URL

http://updates-http.cdn-apple.com/2018FallSeed/patches/041-13852/64E73322-CD7E-11E8-8B61-B73F35301335/com_apple_MobileAsset_SoftwareUpdate/5ae77f16806cfdc4984655e818404343186ab154.zip