Choose an OTA for the Apple Watch Series 4 (40mm, LTE)
OTA firmwares cannot be restored to. IPSW Downloads collects them for potential future use. They might also be useful if you're doing research.
Signed OTAs
| ✓ | watchOS 5.3.10 (16U711) | March 24, 2026 | 1.4 GiB | 893009c0b14fa7d0f8957a66069d9b6de54867d4.zip | Download |
| ✓ | watchOS 6.3.1 (17U224) | February 2, 2026 | 1.4 GiB | ea3fb6a8d4dbfecef64354cb138a3c8af82e660b.zip | Download |
| ✓ | watchOS 5.3.9 (16U693) | November 5, 2020 | 1.4 GiB | 1eeb65e52cf308ee5e0c917bfd840ff8a6c6a23d.zip | Download |
Unsigned OTAs
| ✗ | watchOS 6.3 (17U216) | January 26, 2021 | 1.4 GiB | e0644bfb51965889e419741ed70dc6bfa8736e54.zip | Download |
| ✗ | watchOS 5.3.8 (16U680) | July 15, 2020 | 1.4 GiB | 19c462faf582d35bace46ed4eb82e2239e3084cf.zip | Download |
| ✗ | watchOS 5.3.7 (16U674) | May 18, 2020 | 1.4 GiB | 25e48dcb951e514ddeae61e58a733cffa7017a5b.zip | Download |
| ✗ | watchOS 5.3.6 (16U662) | March 24, 2020 | 1.4 GiB | f2cb54a27fc4d859ca1bf3fcf685c97062559a45.zip | Download |
| ✗ | watchOS 5.3.5 (16U652) | February 18, 2020 | 1.4 GiB | d0b32a62c74d169cd5b8f3c9415e28e1170a7f32.zip | Download |
| ✗ | watchOS 5.3.4 (16U627) | December 10, 2019 | 1.4 GiB | 9af57196426016c10c2349539beaf1a653c613a0.zip | Download |
| ✗ | watchOS 6.1.1 (17S5433b) | November 5, 2019 | 1.4 GiB | 3d5e9b72b5742972bb407e984c25f4dbdcaa7ed3.zip | Download |
| ✗ | watchOS 6.1 (17S5083a) | October 23, 2019 | 1.4 GiB | 04e972acdacfa72e4f97eb2096c99b8fe0ddebef.zip | Download |
| ✗ | watchOS 5.3.3 (16U620) | October 29, 2019 | 1.4 GiB | 1dd30d61f7605e4cbfcfdb65cd9838409931b129.zip | Download |
| ✗ | watchOS 6.1 (17S5076a) | October 16, 2019 | 1.4 GiB | a3f4831a71db667b45ac09ad170f3c70af35bdc2.zip | Download |
| ✗ | watchOS 6.1 (17S5068e) | October 10, 2019 | 1.4 GiB | b2fc095f45b6948d808aa7c0626c907eb422ffe1.zip | Download |
| ✗ | watchOS 6.1 (17S5059e) | October 2, 2019 | 1.4 GiB | 656b233059dad4533980e847f5fe7cc1e5939a5a.zip | Download |
| ✗ | watchOS 6.0.1 (17R605) | September 30, 2019 | 1.4 GiB | 1c37f06b5ede52f4f88bb1c8d0572d7fe271784a.zip | Download |
| ✗ | watchOS 6.1 (17S5054e) | September 23, 2019 | 1.4 GiB | 8dc53db87e96ee4a8fe3bf8787ad074ad8e789e4.zip | Download |
| ✗ | watchOS 5.3.2 (16U611) | October 9, 2019 | 1.4 GiB | 84bb01ea62dfaf2ca6bde37f8f2e77dde9bb226a.zip | Download |
| ✗ | watchOS 6.0 (17R575) | September 11, 2019 | 1.4 GiB | 1bc7160ddd88e2afd8176bb5f6d9edbd501dcde9.zip | Download |
| ✗ | watchOS 6.0 (17R5575a) | August 27, 2019 | 1.4 GiB | 83ea3917e15920431cb96d348b20d2ff5859092c.zip | Download |
| ✗ | watchOS 5.3.1 (16U600) | August 26, 2019 | 1.4 GiB | 9d18cfc3598fe218f3016fb0f133c5b58b720928.zip | Download |
| ✗ | watchOS 6.0 (17R5571a) | August 21, 2019 | 1.4 GiB | aa1569cb93eaafc6c8d020023f9dc167b72805af.zip | Download |
| ✗ | watchOS 6.0 (17R5566a) | August 15, 2019 | 1.4 GiB | 2aa5e36cb4f567a29f915c260e75ad1bf20a3990.zip | Download |
| ✗ | watchOS 6.0 (17R5556d) | August 7, 2019 | 1.4 GiB | 54b576e6ad4aefd2215c7c528056fb402c371f4a.zip | Download |
| ✗ | watchOS 6.0 (17R5546f) | July 30, 2019 | 1.4 GiB | a661052e807eeb7bbb30a77a2a7b8d1746d015bd.zip | Download |
| ✗ | watchOS 5.3 (16U569) | July 22, 2019 | 1.4 GiB | 3137fd5c47e23a4eb0004c806d17782ee14471ec.zip | Download |
| ✗ | watchOS 6.0 (17R5532f) | July 17, 2019 | 1.4 GiB | ff1f0e436cfae040db07b275e5be75659879b8cb.zip | Download |
| ✗ | watchOS 5.3 (16U5569a) | July 16, 2019 | 1.4 GiB | 42dfe3200b645b28a360ad3578feefa822c4d134.zip | Download |
| ✗ | watchOS 5.3 (16U5566a) | July 9, 2019 | 1.4 GiB | d85fb31a7dd548fe4a97dd5ad19eb96ce9669e7b.zip | Download |
| ✗ | watchOS 6.0 (17R5521e) | July 2, 2019 | 1.4 GiB | e8d7481e8680050fbb842f0365db0fd827650aec.zip | Download |
| ✗ | watchOS 5.3 (16U5558b) | June 24, 2019 | 1.4 GiB | c9921a0fdffe1f2e517303465b89f8d5314dae1f.zip | Download |
| ✗ | watchOS 6.0 (17R5507l) | June 17, 2019 | 1.4 GiB | 2b4e8c7d52b2dc220da3135de5870e44102b268c.zip | Download |
| ✗ | watchOS 5.3 (16U5545c) | June 11, 2019 | 1.4 GiB | 2f903da985a8ed694965aa01d6838c8e4a262e49.zip | Download |
| ✗ | watchOS 6.0 (17R5491t) | June 3, 2019 | 1.4 GiB | 25ae7bbef85199f1540b8f2bd674f0534ddfb2f8.zip | Download |
| ✗ | watchOS 5.3 (16U5537b) | May 28, 2019 | 1.4 GiB | 4676e06829437cd0acd416740381ebf1766e4541.zip | Download |
| ✗ | watchOS 5.3 (16U5526f) | May 15, 2019 | 1.4 GiB | 3c35911120d956c99ae6bb3a895cea89a4e8771c.zip | Download |
| ✗ | watchOS 5.2.1 (16U113) | May 13, 2019 | 1.4 GiB | 8b47b72fac8d2f8b6cf2eeb074c6c2385a2ca208.zip | Download |
| ✗ | watchOS 5.2.1 (16U5113a) | May 7, 2019 | 1.4 GiB | 3419d394f0296659dee5cc13e47becded51979dc.zip | Download |
| ✗ | watchOS 5.2.1 (16U5110a) | April 29, 2019 | 1.4 GiB | 7ef5693c469a51b76fa1779118646c5291affc1c.zip | Download |
| ✗ | watchOS 5.2.1 (16U5101c) | April 22, 2019 | 1.4 GiB | a602cf41da69ee23e21fbc86935d7e45463c6bf2.zip | Download |
| ✗ | watchOS 5.2.1 (16U5091b) | April 8, 2019 | 1.4 GiB | ed361291669056a5b560b9cb7549d994e82b569c.zip | Download |
| ✗ | watchOS 5.2.1 (16U5079d) | March 28, 2019 | 1.4 GiB | a12df5c573cdba466991aa5ae0f0ecb3563bff5e.zip | Download |
| ✗ | watchOS 5.2 (16T225) | March 27, 2019 | 1.4 GiB | e4de64d09cdc715f4c509807984f07d4bbf18b04.zip | Download |
| ✗ | watchOS 5.2 (16T5225a) | March 18, 2019 | 1.4 GiB | cf43436cfc8e83d5236c41721fb0b180e3dcfb13.zip | Download |
| ✗ | watchOS 5.2 (16T5222a) | March 11, 2019 | 1.4 GiB | 30b88f9c040a0766e8afa51e120596064c717ba1.zip | Download |
| ✗ | watchOS 5.2 (16T5212e) | March 4, 2019 | 1.4 GiB | f4747028b983d7a30b92f95a35464ad2fbc0efb5.zip | Download |
| ✗ | watchOS 5.2 (16T5201c) | February 19, 2019 | 1.4 GiB | 9ad70e660e2307c661d7abaff800962ce26bd530.zip | Download |
| ✗ | watchOS 5.2 (16T5191d) | February 4, 2019 | 1.4 GiB | 2e675c33f6a3169b02d7b3cfa92e551f1de2dfbf.zip | Download |
| ✗ | watchOS 5.2 (16T5181f) | January 24, 2019 | 1.4 GiB | 72381198df2a7e73494e80d57ff3ce1d6a195bf5.zip | Download |
| ✗ | watchOS 5.1.3 (16S535) | January 22, 2019 | 1.4 GiB | 3c5238738fd5d3c7584e7fc00223f36330cc140e.zip | Download |
| ✗ | watchOS 5.1.3 (16S5535a) | January 7, 2019 | 1.4 GiB | f989902aa070260bcf530d0e77efff1a4debb127.zip | Download |
| ✗ | watchOS 5.1.3 (16S5531a) | December 19, 2018 | 1.4 GiB | 5eaf585c4a80c85df92912594ee4d4c28a128e60.zip | Download |
| ✗ | watchOS 5.1.3 (16S5523a) | December 10, 2018 | 1.4 GiB | bd648b48b8fcbd239a20c8ec2b3d1f27fe46162e.zip | Download |
| ✗ | watchOS 5.1.2 (16S46) | December 6, 2018 | 1.4 GiB | ab30952fe2a177c398fecc1ee4a276c6d8b7a3c5.zip | Download |
| ✗ | watchOS 5.1.2 (16S5046a) | November 15, 2018 | 1.4 GiB | d7e547a18a0b2416aacdab3e579f34fbc6241c1e.zip | Download |
| ✗ | watchOS 5.1.2 (16S5042a) | November 7, 2018 | 1.4 GiB | 0949dd5973ea149e745564d041768c2bf669795a.zip | Download |
| ✗ | watchOS 5.1.1 (16R600) | November 5, 2018 | 1.4 GiB | 889cb0f31521331da5e2d5fe21e3a5ce5efae0d3.zip | Download |
| ✗ | watchOS 5.1 (16R591) | October 30, 2018 | 1.4 GiB | 166ee2e9b239d84d595f7bc10604329b8d6c0de5.zip | Download |
| ✗ | watchOS 5.1 (16R5589c) | October 22, 2018 | 1.4 GiB | 6b0015532ef267e9c93063c9ffea07034c71aa3c.zip | Download |
| ✗ | watchOS 5.1 (16R5584a) | October 15, 2018 | 1.4 GiB | 2f2522d0df12c759c04701e3f0350d46bc3596b6.zip | Download |
| ✗ | watchOS 5.1 (16R5577c) | October 9, 2018 | 1.4 GiB | 36915bbe9c39ab0afc151d932e8e47435b7a2835.zip | Download |
| ✗ | watchOS 5.1 (16R5568d) | October 2, 2018 | 1.4 GiB | 95b65d8ea257fc2d3446237d03ccd96221e78b7f.zip | Download |
| ✗ | watchOS 5.0.1 (16R382) | September 27, 2018 | 1.4 GiB | 99031d4a77adb9ac161838ae793e6fc26efdf950.zip | Download |
| ✗ | watchOS 5.1 (16R5559d) | September 18, 2018 | 1.4 GiB | e20d9f04b046416303a3e75b76edb4f05dae530e.zip | Download |
| ✗ | watchOS 5.0 (16R364) | September 12, 2018 | 1.4 GiB | 97124f641adf651481548e53814705697c6d7896.zip | Download |
This page omits OTA downloads with version prerequisites. You can view these on this
API endpoint.