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Zeus

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Version 3.1.4 · iOS 17 or later

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© 2026 Zeus. All rights reserved.

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

  1. IPSW
  2. Apple Watch
  3. Apple Watch Series 1 (42mm)

Apple Watch Series 1 (42mm) firmware downloads

Model Watch2,7 · Board N28dAP · 169 versions

Signed now

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

83 more signed files below.

  • watchOS 6.3.1Latest

    Build 17U224 · Feb 2, 2026 · 1.37 GB

    Download

  • watchOS 5.3.10

    Build 16U711 · Mar 24, 2026 · 1.27 GB

    Download

  • watchOS 5.3.9

    Build 16U693 · Nov 5, 2020 · 1.27 GB

    Download

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

All firmware

169 versions

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

  • watchOS 6404
  • watchOS 51214
  • watchOS 4678
  • watchOS 3416

watchOS 6

404 files
watchOS 6 firmware for Apple Watch Series 1 (42mm)
VersionBuildReleasedSizeStatusDownload
watchOS 6.3.1Signed

Update from watchOS 6.2.8

17U224 · Feb 2, 2026 · 181 MB

17U224Feb 2, 2026181 MBSignedDownload
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 6.2.9

17U224 · Feb 2, 2026 · 189 MB

17U224Feb 2, 2026189 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.3

17U224 · Feb 2, 2026 · 189 MB

17U224Feb 2, 2026189 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.3

17U224 · Feb 2, 2026 · 189 MB

17U224Feb 2, 2026189 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.2.8

17U6224 · Feb 2, 2026 · 274 MB

17U6224Feb 2, 2026274 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.2.8

17U6224 · Feb 2, 2026 · 274 MB

17U6224Feb 2, 2026274 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.2.8

17U6224 · Feb 2, 2026 · 274 MB

17U6224Feb 2, 2026274 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.2

17U224 · Feb 2, 2026 · 301 MB

17U224Feb 2, 2026301 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.2.1

17U224 · Feb 2, 2026 · 301 MB

17U224Feb 2, 2026301 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.2

17U224 · Feb 2, 2026 · 518 MB

17U224Feb 2, 2026518 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.1.1

17U224 · Feb 2, 2026 · 550 MB

17U224Feb 2, 2026550 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.2

17U224 · Feb 2, 2026 · 518 MB

17U224Feb 2, 2026518 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.2

17U224 · Feb 2, 2026 · 518 MB

17U224Feb 2, 2026518 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.2

17U224 · Feb 2, 2026 · 518 MB

17U224Feb 2, 2026518 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.2

17U224 · Feb 2, 2026 · 518 MB

17U224Feb 2, 2026518 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.1

17U224 · Feb 2, 2026 · 560 MB

17U224Feb 2, 2026560 MBSignedDownload
watchOS 6.3.1LatestSigned

17U224 · Feb 2, 2026 · 1.37 GB

17U224Feb 2, 20261.37 GBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.1.2

17U224 · Feb 2, 2026 · 547 MB

17U224Feb 2, 2026547 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.1.3

17U224 · Feb 2, 2026 · 547 MB

17U224Feb 2, 2026547 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.2.5

17U224 · Feb 2, 2026 · 314 MB

17U224Feb 2, 2026314 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.2.5

17U224 · Feb 2, 2026 · 314 MB

17U224Feb 2, 2026314 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.2.5

17U224 · Feb 2, 2026 · 314 MB

17U224Feb 2, 2026314 MBSignedDownload
watchOS 6.3Unsigned

Update from watchOS 6.2.9

17U208 · Dec 14, 2020 · 58 MB

17U208Dec 14, 202058 MBUnsignedDownload

watchOS 5

1214 files
watchOS 5 firmware for Apple Watch Series 1 (42mm)
VersionBuildReleasedSizeStatusDownload
watchOS 5.3.10Signed

16U711 · Mar 24, 2026 · 1.27 GB

16U711Mar 24, 20261.27 GBSignedDownload
watchOS 5.3.10Signed

Update from watchOS 5.3.9

16U711 · Mar 24, 2026 · 54 MB

16U711Mar 24, 202654 MBSignedDownload
watchOS 5.3.10Signed

Update from watchOS 5.3.3

16U711 · Mar 24, 2026 · 59 MB

16U711Mar 24, 202659 MBSignedDownload
watchOS 5.3.10Signed

Update from watchOS 5.3.7

16U711 · Mar 24, 2026 · 56 MB

16U711Mar 24, 202656 MBSignedDownload
watchOS 5.3.10Signed

Update from watchOS 5.3.8

16U711 · Mar 24, 2026 · 56 MB

16U711Mar 24, 202656 MBSignedDownload
watchOS 5.3.10Signed

Update from watchOS 5.3.4

16U711 · Mar 24, 2026 · 58 MB

16U711Mar 24, 202658 MBSignedDownload
watchOS 5.3.10Signed

Update from watchOS 5.3.6

16U711 · Mar 24, 2026 · 58 MB

16U711Mar 24, 202658 MBSignedDownload
watchOS 5.3.10Signed

Update from watchOS 5.3.1

16U711 · Mar 24, 2026 · 63 MB

16U711Mar 24, 202663 MBSignedDownload
watchOS 5.3.10Signed

Update from watchOS 5.3.2

16U711 · Mar 24, 2026 · 62 MB

16U711Mar 24, 202662 MBSignedDownload
watchOS 5.3.10Signed

Update from watchOS 5.3

16U711 · Mar 24, 2026 · 67 MB

16U711Mar 24, 202667 MBSignedDownload
watchOS 5.3.10Signed

Update from watchOS 5.3.5

16U711 · Mar 24, 2026 · 58 MB

16U711Mar 24, 202658 MBSignedDownload
watchOS 5.3.10Signed

Update from watchOS 5.1.3

16U711 · Mar 24, 2026 · 462 MB

16U711Mar 24, 2026462 MBSignedDownload
watchOS 5.3.10Signed

Update from watchOS 5.1.1

16U711 · Mar 24, 2026 · 477 MB

16U711Mar 24, 2026477 MBSignedDownload
watchOS 5.3.10Signed

Update from watchOS 5.1.2

16U711 · Mar 24, 2026 · 463 MB

16U711Mar 24, 2026463 MBSignedDownload
watchOS 5.3.10Signed

Update from watchOS 5.1

16U711 · Mar 24, 2026 · 477 MB

16U711Mar 24, 2026477 MBSignedDownload
watchOS 5.3.10Signed

Update from watchOS 5.0

16U711 · Mar 24, 2026 · 494 MB

16U711Mar 24, 2026494 MBSignedDownload
watchOS 5.3.10Signed

Update from watchOS 5.0.1

16U711 · Mar 24, 2026 · 494 MB

16U711Mar 24, 2026494 MBSignedDownload
watchOS 5.3.10Signed

Update from watchOS 5.2

16U711 · Mar 24, 2026 · 145 MB

16U711Mar 24, 2026145 MBSignedDownload
watchOS 5.3.10Signed

Update from watchOS 5.2.1

16U711 · Mar 24, 2026 · 111 MB

16U711Mar 24, 2026111 MBSignedDownload
watchOS 5.3.9Signed

Update from watchOS 5.0

16U693 · Dec 14, 2020 · 484 MB

16U693Dec 14, 2020484 MBSignedDownload
watchOS 5.3.9Signed

Update from watchOS 5.1.1

16U693 · Dec 14, 2020 · 467 MB

16U693Dec 14, 2020467 MBSignedDownload
watchOS 5.3.9Signed

Update from watchOS 5.1

16U693 · Dec 14, 2020 · 467 MB

16U693Dec 14, 2020467 MBSignedDownload
watchOS 5.3.9Signed

Update from watchOS 5.1.2

16U693 · Dec 14, 2020 · 452 MB

16U693Dec 14, 2020452 MBSignedDownload
watchOS 5.3.9Signed

Update from watchOS 5.0.1

16U693 · Dec 14, 2020 · 484 MB

16U693Dec 14, 2020484 MBSignedDownload
watchOS 5.3.9Signed

Update from watchOS 5.1.3

16U693 · Dec 14, 2020 · 452 MB

16U693Dec 14, 2020452 MBSignedDownload

watchOS 4

678 files
watchOS 4 firmware for Apple Watch Series 1 (42mm)
VersionBuildReleasedSizeStatusDownload
watchOS 4.3.2Unsigned

15U70 · Jul 9, 2018 · 1.12 GB

15U70Jul 9, 20181.12 GBUnsignedDownload
watchOS 4.3.2Unsigned

Update from watchOS 4.3.2

15U6070 · Jul 9, 2018 · 51 MB

15U6070Jul 9, 201851 MBUnsignedDownload
watchOS 4.3.2Unsigned

Update from watchOS 4.3.1

15U70 · Jul 9, 2018 · 73 MB

15U70Jul 9, 201873 MBUnsignedDownload
watchOS 4.3.2Unsigned

Update from watchOS 4.3

15U70 · Jul 9, 2018 · 118 MB

15U70Jul 9, 2018118 MBUnsignedDownload
watchOS 4.3.2Unsigned

Update from watchOS 4.3.2

15U6070 · Jul 9, 2018 · 62 MB

15U6070Jul 9, 201862 MBUnsignedDownload
watchOS 4.3.2Unsigned

Update from watchOS 4.3

15U70 · Jul 9, 2018 · 156 MB

15U70Jul 9, 2018156 MBUnsignedDownload
watchOS 4.3.2Unsigned

Update from watchOS 4.3

15U70 · Jul 9, 2018 · 147 MB

15U70Jul 9, 2018147 MBUnsignedDownload
watchOS 4.3.2Unsigned

Update from watchOS 4.3

15U70 · Jul 9, 2018 · 159 MB

15U70Jul 9, 2018159 MBUnsignedDownload
watchOS 4.3.2Unsigned

Update from watchOS 4.3.1

15U70 · Jul 9, 2018 · 93 MB

15U70Jul 9, 201893 MBUnsignedDownload
watchOS 4.3.2Unsigned

Update from watchOS 4.3.1

15U70 · Jul 9, 2018 · 97 MB

15U70Jul 9, 201897 MBUnsignedDownload
watchOS 4.3.2Unsigned

Update from watchOS 4.3.2

15U6070 · Jul 9, 2018 · 56 MB

15U6070Jul 9, 201856 MBUnsignedDownload
watchOS 4.3.2Unsigned

Update from watchOS 4.3

15U70 · Jul 9, 2018 · 114 MB

15U70Jul 9, 2018114 MBUnsignedDownload
watchOS 4.3.2Unsigned

Update from watchOS 4.3.1

15U70 · Jul 9, 2018 · 103 MB

15U70Jul 9, 2018103 MBUnsignedDownload
watchOS 4.3.2Unsigned

Update from watchOS 4.3

15U70 · Jul 9, 2018 · 114 MB

15U70Jul 9, 2018114 MBUnsignedDownload
watchOS 4.3.2Unsigned

Update from watchOS 4.3.1

15U70 · Jul 9, 2018 · 53 MB

15U70Jul 9, 201853 MBUnsignedDownload
watchOS 4.3.2Unsigned

Update from watchOS 4.3.1

15U70 · Jul 9, 2018 · 74 MB

15U70Jul 9, 201874 MBUnsignedDownload
watchOS 4.3.2Unsigned

Update from watchOS 4.3

15U70 · Jul 9, 2018 · 106 MB

15U70Jul 9, 2018106 MBUnsignedDownload
watchOS 4.3.2Unsigned

Update from watchOS 4.2.3

15U70 · Jul 9, 2018 · 332 MB

15U70Jul 9, 2018332 MBUnsignedDownload
watchOS 4.3.2Unsigned

Update from watchOS 3.1

15U70 · Jul 9, 2018 · 696 MB

15U70Jul 9, 2018696 MBUnsignedDownload
watchOS 4.3.2Unsigned

Update from watchOS 4.1

15U70 · Jul 9, 2018 · 345 MB

15U70Jul 9, 2018345 MBUnsignedDownload
watchOS 4.3.2Unsigned

Update from watchOS 4.2.2

15U70 · Jul 9, 2018 · 332 MB

15U70Jul 9, 2018332 MBUnsignedDownload
watchOS 4.3.2Unsigned

Update from watchOS 4.2

15U70 · Jul 9, 2018 · 332 MB

15U70Jul 9, 2018332 MBUnsignedDownload
watchOS 4.3.2Unsigned

Update from watchOS 3.1.3

15U70 · Jul 9, 2018 · 697 MB

15U70Jul 9, 2018697 MBUnsignedDownload
watchOS 4.3.2Unsigned

Update from watchOS 4.0

15U70 · Jul 9, 2018 · 370 MB

15U70Jul 9, 2018370 MBUnsignedDownload
watchOS 4.3.2Unsigned

Update from watchOS 3.2.3

15U70 · Jul 9, 2018 · 673 MB

15U70Jul 9, 2018673 MBUnsignedDownload

watchOS 3

416 files
watchOS 3 firmware for Apple Watch Series 1 (42mm)
VersionBuildReleasedSizeStatusDownload
watchOS 3.2.3Signed

14V753 · Jul 19, 2017 · 977 MB

14V753Jul 19, 2017977 MBSignedDownload
watchOS 3.2.3Signed

Update from watchOS 3.2.3

14V6753 · Jul 19, 2017 · 30 MB

14V6753Jul 19, 201730 MBSignedDownload
watchOS 3.2.3Signed

Update from watchOS 3.2.3

14V6753 · Jul 19, 2017 · 30 MB

14V6753Jul 19, 201730 MBSignedDownload
watchOS 3.2.3Signed

Update from watchOS 3.2

14V6753 · Jul 19, 2017 · 46 MB

14V6753Jul 19, 201746 MBSignedDownload
watchOS 3.2.3Signed

Update from watchOS 3.2.2

14V6753 · Jul 19, 2017 · 38 MB

14V6753Jul 19, 201738 MBSignedDownload
watchOS 3.2.3Signed

Update from watchOS 3.2.3

14V6753 · Jul 19, 2017 · 26 MB

14V6753Jul 19, 201726 MBSignedDownload
watchOS 3.2.3Signed

Update from watchOS 3.2.2

14V6753 · Jul 19, 2017 · 33 MB

14V6753Jul 19, 201733 MBSignedDownload
watchOS 3.2.3Signed

Update from watchOS 3.1.1

14V753 · Jul 19, 2017 · 234 MB

14V753Jul 19, 2017234 MBSignedDownload
watchOS 3.2.3Signed

Update from watchOS 3.2.2

14V753 · Jul 19, 2017 · 31 MB

14V753Jul 19, 201731 MBSignedDownload
watchOS 3.2.3Signed

Update from watchOS 3.2

14V753 · Jul 19, 2017 · 44 MB

14V753Jul 19, 201744 MBSignedDownload
watchOS 3.2.3Signed

Update from watchOS 3.2.2

14V6753 · Jul 19, 2017 · 38 MB

14V6753Jul 19, 201738 MBSignedDownload
watchOS 3.2.3Signed

Update from watchOS 3.1

14V753 · Jul 19, 2017 · 278 MB

14V753Jul 19, 2017278 MBSignedDownload
watchOS 3.2.3Signed

Update from watchOS 3.2

14V6753 · Jul 19, 2017 · 105 MB

14V6753Jul 19, 2017105 MBSignedDownload
watchOS 3.2.3Signed

Update from watchOS 3.2.3

14V6753 · Jul 19, 2017 · 26 MB

14V6753Jul 19, 201726 MBSignedDownload
watchOS 3.2.3Signed

Update from watchOS 3.1

14V753 · Jul 19, 2017 · 278 MB

14V753Jul 19, 2017278 MBSignedDownload
watchOS 3.2.3Signed

Update from watchOS 3.0

14V753 · Jul 19, 2017 · 284 MB

14V753Jul 19, 2017284 MBSignedDownload
watchOS 3.2.3Signed

Update from watchOS 3.2.2

14V6753 · Jul 19, 2017 · 34 MB

14V6753Jul 19, 201734 MBSignedDownload
watchOS 3.2.3Signed

Update from watchOS 3.1.3

14V753 · Jul 19, 2017 · 234 MB

14V753Jul 19, 2017234 MBSignedDownload
watchOS 3.2.3Signed

Update from watchOS 3.2

14V6753 · Jul 19, 2017 · 75 MB

14V6753Jul 19, 201775 MBSignedDownload
watchOS 3.2.3Signed

Update from watchOS 3.2

14V6753 · Jul 19, 2017 · 83 MB

14V6753Jul 19, 201783 MBSignedDownload
watchOS 3.2.3Signed

Update from watchOS 3.2

14V6753 · Jul 19, 2017 · 47 MB

14V6753Jul 19, 201747 MBSignedDownload
watchOS 3.2.3Signed

Update from watchOS 3.2

14V6753 · Jul 19, 2017 · 46 MB

14V6753Jul 19, 201746 MBSignedDownload
watchOS 3.2.3Signed

Update from watchOS 3.2

14V6753 · Jul 19, 2017 · 47 MB

14V6753Jul 19, 201747 MBSignedDownload
watchOS 3.2.3Signed

Update from watchOS 3.2.3

14V6753 · Jul 19, 2017 · 24 MB

14V6753Jul 19, 201724 MBSignedDownload
watchOS 3.2.3Signed

Update from watchOS 3.2.3

14V6753 · Jul 19, 2017 · 24 MB

14V6753Jul 19, 201724 MBSignedDownload