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Zeus

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Version 3.1.4 · iOS 17 or later

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Not affiliated with Apple Inc. iPhone and iPad are trademarks of Apple Inc.

  1. IPSW
  2. Apple Watch
  3. Apple Watch Series 5 (40mm)

Apple Watch Series 5 (40mm) firmware downloads

Model Watch5,1 · Board N144sAP · 10 versions

Signed now

Apple is signing these versions, so they install with a normal restore.

12 more signed files below.

  • watchOS 6.3.1Latest

    Build 17U224 · Feb 2, 2026 · 1.40 GB

    Download

Restoring wipes all data. Back up your device first. How to restore

All firmware

10 versions

Newest first, every release Apple has published for this model.

watchOS 6

60 files
watchOS 6 firmware for Apple Watch Series 5 (40mm)
VersionBuildReleasedSizeStatusDownload
watchOS 6.3.1Signed

Update from watchOS 6.2.5

17U224 · Feb 2, 2026 · 251 MB

17U224Feb 2, 2026251 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.2.6

17U224 · Feb 2, 2026 · 251 MB

17U224Feb 2, 2026251 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.2.8

17U224 · Feb 2, 2026 · 177 MB

17U224Feb 2, 2026177 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.3

17U224 · Feb 2, 2026 · 155 MB

17U224Feb 2, 2026155 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.2

17U224 · Feb 2, 2026 · 298 MB

17U224Feb 2, 2026298 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.2.1

17U224 · Feb 2, 2026 · 298 MB

17U224Feb 2, 2026298 MBSignedDownload
watchOS 6.3.1LatestSigned

17U224 · Feb 2, 2026 · 1.40 GB

17U224Feb 2, 20261.40 GBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.1

17U224 · Feb 2, 2026 · 532 MB

17U224Feb 2, 2026532 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.1.1

17U224 · Feb 2, 2026 · 522 MB

17U224Feb 2, 2026522 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.1.2

17U224 · Feb 2, 2026 · 519 MB

17U224Feb 2, 2026519 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.1.3

17U224 · Feb 2, 2026 · 519 MB

17U224Feb 2, 2026519 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.0

17U224 · Feb 2, 2026 · 651 MB

17U224Feb 2, 2026651 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.0.1

17U224 · Feb 2, 2026 · 651 MB

17U224Feb 2, 2026651 MBSignedDownload
watchOS 6.3Unsigned

Update from watchOS 6.0.1

17U216 · Jan 26, 2021 · 558 MB

17U216Jan 26, 2021558 MBUnsignedDownload
watchOS 6.3Unsigned

Update from watchOS 6.0

17U216 · Jan 26, 2021 · 558 MB

17U216Jan 26, 2021558 MBUnsignedDownload
watchOS 6.3Unsigned

17U216 · Jan 26, 2021 · 1.40 GB

17U216Jan 26, 20211.40 GBUnsignedDownload
watchOS 6.3Unsigned

Update from watchOS 6.2.8

17U216 · Jan 26, 2021 · 70 MB

17U216Jan 26, 202170 MBUnsignedDownload
watchOS 6.3Unsigned

Update from watchOS 6.1.2

17U216 · Jan 26, 2021 · 423 MB

17U216Jan 26, 2021423 MBUnsignedDownload
watchOS 6.3Unsigned

Update from watchOS 6.1.1

17U216 · Jan 26, 2021 · 426 MB

17U216Jan 26, 2021426 MBUnsignedDownload
watchOS 6.3Unsigned

Update from watchOS 6.2.1

17U216 · Jan 26, 2021 · 174 MB

17U216Jan 26, 2021174 MBUnsignedDownload
watchOS 6.3Unsigned

Update from watchOS 6.2

17U216 · Jan 26, 2021 · 174 MB

17U216Jan 26, 2021174 MBUnsignedDownload
watchOS 6.3Unsigned

Update from watchOS 6.1

17U216 · Jan 26, 2021 · 436 MB

17U216Jan 26, 2021436 MBUnsignedDownload
watchOS 6.3Unsigned

Update from watchOS 6.2.5

17U216 · Jan 26, 2021 · 127 MB

17U216Jan 26, 2021127 MBUnsignedDownload
watchOS 6.3Unsigned

Update from watchOS 6.2.6

17U216 · Jan 26, 2021 · 127 MB

17U216Jan 26, 2021127 MBUnsignedDownload
watchOS 6.3Unsigned

Update from watchOS 6.1.3

17U216 · Jan 26, 2021 · 423 MB

17U216Jan 26, 2021423 MBUnsignedDownload