Choose an OTA for the Apple Watch Series 4 (44mm)

1 Choose a product
2 Choose a device
3 Choose a version
4 Download

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, 20261.3 GiBe6e527a49b7dfd6bd40c67a2642723e8928c200d.zip
✓watchOS 6.3.1 (17U224)February 2, 20261.4 GiBdacc4b1b4ce2b2ba2ca19a157c9334d82116f763.zip
✓watchOS 5.3.9 (16U693)November 5, 20201.3 GiB699b56b078c1203c668ad4b2cec58872dd82884c.zip

Unsigned OTAs

✗watchOS 6.3 (17U216)January 26, 20211.4 GiBc6f6c36bb8e0c7f7e9787f7c01beb20a0287c14f.zip
✗watchOS 5.3.8 (16U680)July 15, 20201.3 GiB487dabb5547685412cae936ab4f0724af931050a.zip
✗watchOS 5.3.7 (16U674)May 18, 20201.3 GiBf63c059e0ae2bbc563efaf2d40fda34639e9126f.zip
✗watchOS 5.3.6 (16U662)March 24, 20201.3 GiB3e3913a4b05f5bfdf24a913d71ab7b92e8eba92b.zip
✗watchOS 5.3.5 (16U652)February 18, 20201.3 GiB60c09c93f6dc018bd826fa5ca7b066b1bc501179.zip
✗watchOS 5.3.4 (16U627)December 10, 20191.3 GiBab50cc058bf47a97bbb5b85d77663f6a58dbaedc.zip
✗watchOS 6.1.1 (17S5433b)November 5, 20191.4 GiB3dca05bf240eb55ead8504e5854593f3112ed7bd.zip
✗watchOS 6.1 (17S5083a)October 23, 20191.4 GiBb113bbcde62fdcc77b6fe3b21a5e0a6e773fed47.zip
✗watchOS 5.3.3 (16U620)October 29, 20191.3 GiBbaa1a91e958da9211f757e1e471e714d3d836e19.zip
✗watchOS 6.1 (17S5076a)October 16, 20191.4 GiB16d0387e0891ab487ae8199d2e192f109ea16ae1.zip
✗watchOS 6.1 (17S5068e)October 10, 20191.4 GiBb09ae0dce27d8e3cca2b411600d64e566bc2187e.zip
✗watchOS 6.1 (17S5059e)October 2, 20191.3 GiB55d5823802a4f81bdb86d3ee39df2a13183a7160.zip
✗watchOS 6.0.1 (17R605)September 30, 20191.3 GiB0d3bc1954d8a5661cd78a461f1a3bbde1ce80fdb.zip
✗watchOS 6.1 (17S5054e)September 23, 20191.3 GiBb7fe938251278abc467ab6a0ca49c74ef62acd22.zip
✗watchOS 5.3.2 (16U611)October 9, 20191.3 GiB19e0129e2645334fee618f5e03cfa97a2674dfc9.zip
✗watchOS 6.0 (17R575)September 11, 20191.3 GiB1c6ad051eb20c9e171f5cd56f4a9da05e34eca5f.zip
✗watchOS 6.0 (17R5575a)August 27, 20191.3 GiB019766d51c695ec578dbb4e100af576a448e698a.zip
✗watchOS 5.3.1 (16U600)August 26, 20191.3 GiBaa857b151ac0805255ab832fb4c5b4aad4a4c655.zip
✗watchOS 6.0 (17R5571a)August 21, 20191.3 GiB5758b67cf9676384d421c4e10c5518235d4a1a8d.zip
✗watchOS 6.0 (17R5566a)August 15, 20191.3 GiB7e27ad4098eb213dbdf2bbcb25ac9f82fbedde11.zip
✗watchOS 6.0 (17R5556d)August 7, 20191.3 GiB3375aa7daf1db71f353d5e40f4d6c1ccc948c1cd.zip
✗watchOS 6.0 (17R5546f)July 30, 20191.3 GiB4c2cfc16f91a90414aab52ff74f2049ee39106f0.zip
✗watchOS 5.3 (16U569)July 22, 20191.3 GiBb76dab189a2772163ca7ed234c1ed35eafb207a1.zip
✗watchOS 6.0 (17R5532f)July 17, 20191.3 GiB6524364517e4af864dd14d6fc43feaad7191f90d.zip
✗watchOS 5.3 (16U5569a)July 16, 20191.3 GiBfd844d6f60a32bf2cdaf501c6ddce3d8621c8236.zip
✗watchOS 5.3 (16U5566a)July 9, 20191.3 GiBd2386184f5898ab417211abf0ea3e6043f416e57.zip
✗watchOS 6.0 (17R5521e)July 2, 20191.3 GiB22e7ad875a9cb65c7a507cc3292bfb49d80c8018.zip
✗watchOS 5.3 (16U5558b)June 24, 20191.3 GiB942936badf195437486ed816713f2864f8f19479.zip
✗watchOS 6.0 (17R5507l)June 17, 20191.3 GiB07eae6fec6a268a4c92b9b91b1fb08ffd0477026.zip
✗watchOS 5.3 (16U5545c)June 11, 20191.3 GiBa9dc7f54104661d6a4deda931b0b36c2d303c39e.zip
✗watchOS 6.0 (17R5491t)June 3, 20191.4 GiBdae1bcc21b31c9972e2f987bde133aa35c0234f2.zip
✗watchOS 5.3 (16U5537b)May 28, 20191.3 GiB872cc3d54ce0b352dcaa62ac4e4e1afded099bb6.zip
✗watchOS 5.3 (16U5526f)May 15, 20191.3 GiB6d30cd0284cd3a7b0a3060e1756243760a8241a3.zip
✗watchOS 5.2.1 (16U113)May 13, 20191.3 GiBd6a3d52b6bd1961a351445492389e538267e44d3.zip
✗watchOS 5.2.1 (16U5113a)May 7, 20191.3 GiBe5f567b5740d4126a0e5a625c7b2e6936f722d71.zip
✗watchOS 5.2.1 (16U5110a)April 29, 20191.3 GiB1cf7fc2fabfe828c75bbc4072a7de8487c985b99.zip
✗watchOS 5.2.1 (16U5101c)April 22, 20191.3 GiB7c7ef5820bf5a0608e035b340b66c52fa3bc081a.zip
✗watchOS 5.2.1 (16U5091b)April 8, 20191.3 GiBa53a17f6d98c322441cf41a0a87f1c72aba76773.zip
✗watchOS 5.2.1 (16U5079d)March 28, 20191.3 GiB1996858ebe497af7b42faf3a413c35613f34bfa2.zip
✗watchOS 5.2 (16T225)March 27, 20191.3 GiB3b775f90fdbfdc7262d794c7e5494418ab200cc6.zip
✗watchOS 5.2 (16T5225a)March 18, 20191.3 GiB0c117a825160d8ef1564e6227e409b9943de799e.zip
✗watchOS 5.2 (16T5222a)March 11, 20191.3 GiB0f80f79fb059522a4468c32da0ebae78b1767e12.zip
✗watchOS 5.2 (16T5212e)March 4, 20191.3 GiBdb196d5551692cb0deefaa882e163c4471ba5d57.zip
✗watchOS 5.2 (16T5201c)February 19, 20191.3 GiB284c66ad42c9a4fceda841a8e45be3ef7f1d4c10.zip
✗watchOS 5.2 (16T5191d)February 4, 20191.3 GiB9c6b7f0036cfc0f9d095e11a900b901b4d8baef1.zip
✗watchOS 5.2 (16T5181f)January 24, 20191.3 GiB8bf7ed88ad2154e56f32e0bac1850157ae2129ee.zip
✗watchOS 5.1.3 (16S535)January 22, 20191.3 GiB4394a0b744b81d99db5feb6b12a19cfe3c4d2e4f.zip
✗watchOS 5.1.3 (16S5535a)January 7, 20191.3 GiB8e1f17e917ac762b6daa4d631f494c20ac27b9d4.zip
✗watchOS 5.1.3 (16S5531a)December 19, 20181.3 GiBddca40d08c5ad004ce49a9494241626c85dbb605.zip
✗watchOS 5.1.3 (16S5523a)December 10, 20181.3 GiB40bd82b3eb066c1064ace547e5e218bafd0f789c.zip
✗watchOS 5.1.2 (16S46)December 6, 20181.3 GiBb90010ef5a81d0c5fee9cf11a62322d259063e5c.zip
✗watchOS 5.1.2 (16S5046a)November 15, 20181.3 GiBf18e6f098248a974b14571ea3b2837b6c7bea832.zip
✗watchOS 5.1.2 (16S5042a)November 7, 20181.3 GiB0ee5f52d605295493d211c8c1d2c31a4150a7312.zip
✗watchOS 5.1.1 (16R600)November 5, 20181.3 GiB49c96deb525ea2384836e0733335b0239fabd18f.zip
✗watchOS 5.1 (16R591)October 30, 20181.3 GiBfbc5252629bf2d0e93d89fc0bddd9490f2ccbc26.zip
✗watchOS 5.1 (16R5589c)October 22, 20181.3 GiB1d98882361caa54b4186d044c6b9f289b93d45df.zip
✗watchOS 5.1 (16R5584a)October 15, 20181.3 GiBdff9e7e5a5d53f7c398ebebe6280235b58bad482.zip
✗watchOS 5.1 (16R5577c)October 9, 20181.3 GiBbd05a9a5827b9afec1a633d40e659c70062548fd.zip
✗watchOS 5.1 (16R5568d)October 2, 20181.3 GiB2ea14543eaa2bb0473ab1bf21f5e76ef6e362a45.zip
✗watchOS 5.0.1 (16R382)September 27, 20181.3 GiB9458d8e3c4b0893c9c65d35ef9ba4f359d3063a5.zip
✗watchOS 5.1 (16R5559d)September 18, 20181.3 GiB7ad704ff12aac40d522b39e0cd41d98c62332bc0.zip
✗watchOS 5.0 (16R364)September 12, 20181.3 GiB135db3372462974a8bac5045d419ddb2d15e4a82.zip
This page omits OTA downloads with version prerequisites. You can view these on this API endpoint.
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