Choose an OTA for the Apple Watch Series 4 (44mm, 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 | 1.3 GiB | 22232142cd5865ff580aa468ed9f0be167c1b07a.zip | Download |
| ✓ | watchOS 6.3.1 (17U224) | February 2, 2026 | 1.4 GiB | 9f2b91d0606994f29987303cf948749d5b44bf2d.zip | Download |
| ✓ | watchOS 5.3.9 (16U693) | November 5, 2020 | 1.3 GiB | 63e2d6ed21b1d3accb3d385d5af9cbf91cfa3547.zip | Download |
Unsigned OTAs
| ✗ | watchOS 6.3 (17U216) | January 26, 2021 | 1.4 GiB | 7f80d97fd20de573115c9b9d3cc88f150fc816da.zip | Download |
| ✗ | watchOS 5.3.8 (16U680) | July 15, 2020 | 1.3 GiB | c4e822153854908e35135880236207153b5b6313.zip | Download |
| ✗ | watchOS 5.3.7 (16U674) | May 18, 2020 | 1.3 GiB | 66f60cb8ec28648460c0a7a46179d280db9b8a44.zip | Download |
| ✗ | watchOS 5.3.6 (16U662) | March 24, 2020 | 1.3 GiB | d621d893309b89eee6d4375333566d7a794cadbb.zip | Download |
| ✗ | watchOS 5.3.5 (16U652) | February 18, 2020 | 1.3 GiB | fec80dc6ea499d9d32d4f72b465e00a330a5bc82.zip | Download |
| ✗ | watchOS 5.3.4 (16U627) | December 10, 2019 | 1.3 GiB | 3cb24f3d7a727d13e2edc1325b4b478b7a60fd69.zip | Download |
| ✗ | watchOS 6.1.1 (17S5433b) | November 5, 2019 | 1.4 GiB | 37f2962c65cdffca7d28fafc8c9007282a24e111.zip | Download |
| ✗ | watchOS 6.1 (17S5083a) | October 23, 2019 | 1.4 GiB | c58fa55339f6c6f2af2ae38fd86a9f44a08696de.zip | Download |
| ✗ | watchOS 5.3.3 (16U620) | October 29, 2019 | 1.3 GiB | 04576e7f135a8b2428c7b59c8e01a85ab5ef7bd0.zip | Download |
| ✗ | watchOS 6.1 (17S5076a) | October 16, 2019 | 1.4 GiB | 8a8bbcad7dd1d630b6287f132d80725c90e83d82.zip | Download |
| ✗ | watchOS 6.1 (17S5068e) | October 10, 2019 | 1.4 GiB | 5d2fc15c973cfd394f5c7e14135c206ea990a3b3.zip | Download |
| ✗ | watchOS 6.1 (17S5059e) | October 2, 2019 | 1.4 GiB | 6ea9e563134f85fe6014e0cdcea17b34bc3c9ed4.zip | Download |
| ✗ | watchOS 6.0.1 (17R605) | September 30, 2019 | 1.4 GiB | b156d2141a9eb52ec77b9b646855886c10cdd252.zip | Download |
| ✗ | watchOS 6.1 (17S5054e) | September 23, 2019 | 1.4 GiB | cec297d7d146ab57c19be4ad77090b160f3bfc67.zip | Download |
| ✗ | watchOS 5.3.2 (16U611) | October 9, 2019 | 1.3 GiB | cfe3671dba1063cd1674d239300f4921ea0d3ef5.zip | Download |
| ✗ | watchOS 6.0 (17R575) | September 11, 2019 | 1.4 GiB | eb266920f5a6849ce2111de29baa70109f4239e5.zip | Download |
| ✗ | watchOS 6.0 (17R5575a) | August 27, 2019 | 1.4 GiB | 455bc1b2286083362cb3afb9046709be510f6d8b.zip | Download |
| ✗ | watchOS 5.3.1 (16U600) | August 26, 2019 | 1.3 GiB | e863f515afd29f4869fa70d0e900475bc3f83b75.zip | Download |
| ✗ | watchOS 6.0 (17R5571a) | August 21, 2019 | 1.4 GiB | 0e1ee444cab6338e65a3c9519fc58d46a60294e9.zip | Download |
| ✗ | watchOS 6.0 (17R5566a) | August 15, 2019 | 1.4 GiB | d92636a486bb35356eb93744a2ff75d65e06baad.zip | Download |
| ✗ | watchOS 6.0 (17R5556d) | August 7, 2019 | 1.4 GiB | 24c4c684aefe465688d4ee05b447075b1cfca234.zip | Download |
| ✗ | watchOS 6.0 (17R5546f) | July 30, 2019 | 1.4 GiB | 2d0f23cd56aa754568538ac1b425ab6bf117d00f.zip | Download |
| ✗ | watchOS 5.3 (16U569) | July 22, 2019 | 1.3 GiB | 8460e5ecbea8f5c2f6a1a817b24446514140cce5.zip | Download |
| ✗ | watchOS 6.0 (17R5532f) | July 17, 2019 | 1.4 GiB | dab567d581707e43e5eb51645e44c658192a1314.zip | Download |
| ✗ | watchOS 5.3 (16U5569a) | July 16, 2019 | 1.3 GiB | 51da6cb8d93d0b40e60fe33a2b909ab705edf634.zip | Download |
| ✗ | watchOS 5.3 (16U5566a) | July 9, 2019 | 1.3 GiB | 928d473b70b3e4ec5ea83877b775aebd33471791.zip | Download |
| ✗ | watchOS 6.0 (17R5521e) | July 2, 2019 | 1.4 GiB | 2cce85c95844a0e2445b363ebc8ed0e54cc6e8af.zip | Download |
| ✗ | watchOS 5.3 (16U5558b) | June 24, 2019 | 1.3 GiB | bb5c07eb75b95203e9fbc861cead3e4158daae31.zip | Download |
| ✗ | watchOS 6.0 (17R5507l) | June 17, 2019 | 1.4 GiB | e54dbddd83c0804677f8087e7a5b43b39cc47bb3.zip | Download |
| ✗ | watchOS 5.3 (16U5545c) | June 11, 2019 | 1.3 GiB | 5954dc97a70c1811cb765d15f373cd0f7dd18598.zip | Download |
| ✗ | watchOS 6.0 (17R5491t) | June 3, 2019 | 1.4 GiB | 702df6f0c1165e3625e073808819be9e7f95161d.zip | Download |
| ✗ | watchOS 5.3 (16U5537b) | May 28, 2019 | 1.3 GiB | 05688d48bc7215d3fdd0b3e692acfac5ca3c8a30.zip | Download |
| ✗ | watchOS 5.3 (16U5526f) | May 15, 2019 | 1.3 GiB | 12832e7121b7463199ba68ddf48f2677fdf3a5fa.zip | Download |
| ✗ | watchOS 5.2.1 (16U113) | May 13, 2019 | 1.3 GiB | 552f3191e594ce53aca58b80e4e362754649bc54.zip | Download |
| ✗ | watchOS 5.2.1 (16U5113a) | May 7, 2019 | 1.3 GiB | 6e237dfcd743afe17d5f4f7ab3aa4f6fc12f75f5.zip | Download |
| ✗ | watchOS 5.2.1 (16U5110a) | April 29, 2019 | 1.3 GiB | 3688a8dac257f22e0dddb6e2b2474db80537379c.zip | Download |
| ✗ | watchOS 5.2.1 (16U5101c) | April 22, 2019 | 1.3 GiB | 6dd453fc242d270c9fafddcc355ce932fe2fa44f.zip | Download |
| ✗ | watchOS 5.2.1 (16U5091b) | April 8, 2019 | 1.3 GiB | 667742032166d3ecdbdfeda8ef28e95e55bfd0b5.zip | Download |
| ✗ | watchOS 5.2.1 (16U5079d) | March 28, 2019 | 1.3 GiB | b9dc7490186cb0ab46cce5b5bbdee0c4c29b6ffc.zip | Download |
| ✗ | watchOS 5.2 (16T225) | March 27, 2019 | 1.3 GiB | 0c3d78959f52f33a0449209a47384711e16d141f.zip | Download |
| ✗ | watchOS 5.2 (16T5225a) | March 18, 2019 | 1.3 GiB | e7b6c5dd025374b700e1cfb57723738955b9841a.zip | Download |
| ✗ | watchOS 5.2 (16T5222a) | March 11, 2019 | 1.3 GiB | 0f686580a5a3ead171b3db39b2437a623cadbac9.zip | Download |
| ✗ | watchOS 5.2 (16T5212e) | March 4, 2019 | 1.3 GiB | d217234c9aa34e79f4cbc12340153915e5d31587.zip | Download |
| ✗ | watchOS 5.2 (16T5201c) | February 19, 2019 | 1.3 GiB | f9487074f0a0a392d88dc3acb50df239cf2e08b1.zip | Download |
| ✗ | watchOS 5.2 (16T5191d) | February 4, 2019 | 1.3 GiB | d1f8bfe3d1626e69959f1a109d868632704dd4a0.zip | Download |
| ✗ | watchOS 5.2 (16T5181f) | January 24, 2019 | 1.3 GiB | 53ec9bb10def336e2f9cfc0871b884ca126d5168.zip | Download |
| ✗ | watchOS 5.1.3 (16S535) | January 22, 2019 | 1.4 GiB | 8b7ee66d1c13602a555dace37f8137999fd08aa5.zip | Download |
| ✗ | watchOS 5.1.3 (16S5535a) | January 7, 2019 | 1.4 GiB | d03b0c5bb52ae0794522bc2bce34c2c872053336.zip | Download |
| ✗ | watchOS 5.1.3 (16S5531a) | December 19, 2018 | 1.4 GiB | f3f4b592793574971d0b4eea51b6d7f49a0074c1.zip | Download |
| ✗ | watchOS 5.1.3 (16S5523a) | December 10, 2018 | 1.4 GiB | d878d0587788f47a9a7abbfbdb6c9459c17dca44.zip | Download |
| ✗ | watchOS 5.1.2 (16S46) | December 6, 2018 | 1.4 GiB | c292119d35111a47628e1dd0426732a4b33de7f0.zip | Download |
| ✗ | watchOS 5.1.2 (16S5046a) | November 15, 2018 | 1.4 GiB | 6039de5a0ba5b53ec7bc72b88058886222b99580.zip | Download |
| ✗ | watchOS 5.1.2 (16S5042a) | November 7, 2018 | 1.4 GiB | a0beb638b6a0a681865bda8f9fd7f3c4d498a3f7.zip | Download |
| ✗ | watchOS 5.1.1 (16R600) | November 5, 2018 | 1.4 GiB | f34a3503fb7d2d6710c1dc6ddfd9da133dd78bac.zip | Download |
| ✗ | watchOS 5.1 (16R591) | October 30, 2018 | 1.4 GiB | 27fc6f677188316dc9e9803f32eb8324d544166f.zip | Download |
| ✗ | watchOS 5.1 (16R5589c) | October 22, 2018 | 1.4 GiB | df3e6b2da5a5622d39e94d5dd0884a7ddda7fb89.zip | Download |
| ✗ | watchOS 5.1 (16R5584a) | October 15, 2018 | 1.4 GiB | e0f696756e699b01fe18b3e039895d32336c26d6.zip | Download |
| ✗ | watchOS 5.1 (16R5577c) | October 9, 2018 | 1.4 GiB | d626f9ee34a8837fb9ab93efe3e8f57f6a861ed2.zip | Download |
| ✗ | watchOS 5.1 (16R5568d) | October 2, 2018 | 1.4 GiB | 0842dc23926454fac4a579454e25aa30406780fd.zip | Download |
| ✗ | watchOS 5.0.1 (16R382) | September 27, 2018 | 1.4 GiB | 0a305805064c908b83bb47d1a91427a5b9eea1bb.zip | Download |
| ✗ | watchOS 5.1 (16R5559d) | September 18, 2018 | 1.4 GiB | d886abe5b225813b50bfdb3cfada663e72a44c8e.zip | Download |
| ✗ | watchOS 5.0 (16R364) | September 12, 2018 | 1.4 GiB | aec5afc4214d1f5d7c19f4cb2defa3bbacd62b7e.zip | Download |
This page omits OTA downloads with version prerequisites. You can view these on this
API endpoint.