OTA Updates/Apple Watch/6.3

From The Apple Wiki

Apple Watch Series 1

Watch2,6

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
6.3 17U208[1] 6.2.8 beta 17U5535e 14 December 2020 01cf05383f29f2b3595e2b5d27eb7ba3d19c2ad6.zip 128,909,932
6.2.8 beta 2 17U5545c 67a02fbda1375beb79b22291f35bf0d914c1c667.zip 127,107,173
6.2.8 beta 3 17U5559d d01c80f8c5b5aa1b82f7d6c503435bcb5dee4855.zip 102,619,076
17U208 — 916c7c381f6173bff2a8ebec8fe5539cc8dde8dc.zip 1,457,454,661
5.3.6 16U662 46ddc9741a22ae642c787fe1128e73040d90c262.zip 787,773,098
5.3.7 16U674 e45e679c84858953e1a32eec9b89cec5726d2ac5.zip 787,779,940
5.3.8 16U680 0842f30a48f919c20be41c496724017a89ec2033.zip 787,792,922
5.3.9 16U693 6387866474ea5111cc6b311d4cacfc0ae6df430c.zip 787,786,416
6.1 17S84 2f60f040cdb09b6b327761780b732f262ea1c21b.zip 482,438,035
6.1.1 17S449 d9a320bf97cfa86cdcbb7f5b88aae83d743407c6.zip 471,152,683
6.1.2 17S796 edef379ed535ea44b9aa152f4d9b6ad5944aa0e0.zip 469,148,640
6.1.3 17S811 9301d2a050843e2caad4517f4843731c9eb4ff8f.zip 469,150,980
6.2 beta 17T5224g b8908877b481cb41b6428d684a6a66eb81482cde.zip 227,116,215
6.2 beta 2 17T5234f 8b76e1353001a8e3e7a7b3a5533bb9d71ca6776a.zip 210,436,498
6.2 beta 3 17T5244c ed22b3357eb4fdf8058a0e0374458ab38dc2b8bd.zip 184,009,663
6.2 beta 4 17T5251a 226fe0894d71dbc9d689cae3c6408cbe9e511982.zip 182,997,820
6.2 beta 5 17T5254a 1c14c61b80f7ad6e2b1a0ac04ae28c1e74ddbd12.zip 182,995,730
6.2 17T529 4a77be92b50f838bd684b039d5bb7607129adfcc.zip 178,253,711
6.2.1 17T530 a7b8adf1a6b6633d607e7b549be57a24a6c6534f.zip 178,442,428
6.2.5 beta 17T5580e fb52337c72e2eda33c0805b851f52d602fec4ebc.zip 154,497,877
6.2.5 beta 2 17T5590d 0a6fe11effc15e898d5d7d9f7e5acb7ebbb73ad4.zip 139,985,490
6.2.5 beta 3 17T5600c a89abee51c9be7092ac8672980076011aba4bc28.zip 133,148,207
6.2.5 beta 4 17T5607a 845fc3619c29d8af79241d211c0445de69ea6333.zip 132,008,483
6.2.5 17T608 9cf2057a70c90a7e610b43daeedeac69b2c4bead.zip 127,728,486
6.2.6 17T620 bce9829cad502219c5560e93efa230932a8abdd4.zip 127,712,805
6.2.8 17U63 abc073a3ea0c67d6b8c395b5322b8e75a961c9d4.zip 61,524,501
6.2.9 17U203 b4765aa6399ca5c5594f73dade5f8050967d79a5.zip 60,809,756

Watch2,7

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
6.3 17U208[1] 6.2.8 beta 17U5535e 14 December 2020 4277bf5ffc65bb70cf1a7533fd99cc5fa8ba8486.zip 128,936,365
6.2.8 beta 2 17U5545c c3dd918c86a5666f669092174179b9f0686c5b54.zip 127,133,869
6.2.8 beta 3 17U5559d b799b9df506e5e4a3a7c49c27ed6330046e3d2a5.zip 102,645,865
17U208 — 501b410e3bce7cf5b3743bb9349acb74d8e773e5.zip 1,466,365,043
5.3.6 16U662 52af6e7663fda502f3cd5529375481edda99136d.zip 790,733,778
5.3.7 16U674 036179fd377f78d5f68d98b55a5f9d913c22e299.zip 790,736,808
5.3.8 16U680 401f2ab46bbb383ed3a75db5ed640bda7d53428f.zip 790,753,084
5.3.9 16U693 72df788a0d87749cebda71199b03b0b9fd544573.zip 790,748,130
6.1 17S84 cf21783ff796026534a174eda99341ae8ee13666.zip 482,273,720
6.1.1 17S449 29ecfeb8b1b01d3ce3c55d878b9301c2ff227068.zip 470,997,978
6.1.2 17S796 69603e8db573e17ea71bedc83b12bf3188e497ea.zip 468,986,378
6.1.3 17S811 9983c39d4c190cc604f00e1e590acc5eb2623e92.zip 468,987,508
6.2 beta 17T5224g aee6cf48dac14df0249956055c47b1eba1323b4d.zip 227,148,005
6.2 beta 2 17T5234f bb690d9646c06be0146af13ccc2aa0a2e519060d.zip 210,465,165
6.2 beta 3 17T5244c d1dce181b97f672aa0ec5748d64a2068bd3a852f.zip 184,040,672
6.2 beta 4 17T5251a 3acea0a7267bf4fee26329444a0aa174f363ab8b.zip 183,027,984
6.2 beta 5 17T5254a cb1584ce9a5a075b44cc566ca116cb447e1a2158.zip 183,024,376
6.2 17T529 aed2ea604cac79d44f2e41e6de883aef0d24959c.zip 178,278,455
6.2.1 17T530 7750d08bacc32a2765b8930a51a88c32993278d7.zip 178,466,517
6.2.5 beta 17T5580e 603381e97ac0d8e2c13aa035e358c4ca977fa1dc.zip 154,525,734
6.2.5 beta 2 17T5590d 9a69791a83da59d9cb4eb28a148a43fb7eee9de0.zip 140,027,076
6.2.5 beta 3 17T5600c 1952f5680bc708df02a86137ebe63092920eb78e.zip 133,185,620
6.2.5 beta 4 17T5607a 3abb5373d1dd0d89a0703822924ad93a2c5d5ba5.zip 132,035,668
6.2.5 17T608 aacff173a12ea39b6c4264dfba9c71c420f23188.zip 127,749,763
6.2.6 17T620 3d55b70b28a1436af0ae597c55fee9e0f265c85b.zip 127,737,594
6.2.8 17U63 84febc1ec00c42eefd032cf4240270135bb4531f.zip 61,537,421
6.2.9 17U203 01c963531879b01f292363437287d7d3a9eb11b8.zip 60,822,442

Apple Watch Series 2

Watch2,3

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
6.3 17U208[1] 6.2.8 beta 17U5535e 14 December 2020 4d6473b3dd5fd7b9e37050345526f5e4f195c50a.zip 129,795,742
6.2.8 beta 2 17U5545c 87caa14fb4ebb5886ae4becdfbc2582ccdd3b045.zip 127,992,654
6.2.8 beta 3 17U5559d c0e4aabbc9788421544745608d8a96248593e040.zip 103,504,951
17U208 — 644cbbdc723ec9111df287eb7e617a87f765f144.zip 1,458,340,559
5.3.6 16U662 b3fd0e90777d14cac32213e6e30a5a1f3228dbfa.zip 788,659,121
5.3.7 16U674 117ea078e9da33fd0ef942eb6a0de7de4dd5335d.zip 788,665,732
5.3.8 16U680 fd6234ee25a6a36ce4be704e96a02861b65439ab.zip 788,678,898
5.3.9 16U693 96a7418019b5ebbf23315d1abd28d511d9675a94.zip 788,671,977
6.1 17S84 da4037a4a0ef21c5dd2d0d7ffaf7063d1119db83.zip 483,324,385
6.1.1 17S449 2c83e75bfa9012c233e1135c792ec1264b8c1e5e.zip 472,038,361
6.1.2 17S796 18cff07ab86a50ea56f07928bc1f43ceabf2b978.zip 470,035,084
6.1.3 17S811 662115443ddb8482458e3d78b9c75a07a10ce617.zip 470,036,613
6.2 beta 17T5224g 59aad9f7a7e2f58ec83b5e3e1ae3584b1831beb5.zip 228,002,775
6.2 beta 2 17T5234f 08b5c8d855a60e6a4c0fb01d9a64c6e1f5c6f188.zip 211,321,502
6.2 beta 3 17T5244c a2ddb3b13eab4f58c204f652b628f78fc097b4f5.zip 184,895,461
6.2 beta 4 17T5251a dcecf6b8c8b599ae362a9eb011a3b8e89b369554.zip 183,884,157
6.2 beta 5 17T5254a e297d02a0533ef09cbb95e939d01b84871ba31c4.zip 183,881,636
6.2 17T529 8877b40a64a4e0477e45012e5601af36762c2875.zip 179,139,231
6.2.1 17T530 65b8a769771d00f1c8bfca43185fa315c270a4f6.zip 179,329,046
6.2.5 beta 17T5580e cfbf3ee54e6685d5b441d8817efaa1b33e6a8455.zip 155,383,440
6.2.5 beta 2 17T5590d 542301db9e1ceafdcdce872b389f6ef27b7691b2.zip 140,870,984
6.2.5 beta 3 17T5600c a49cd5ec258e4ba133419ddfb1ca4770391d9dba.zip 134,034,176
6.2.5 beta 4 17T5607a 717f0485f1766201967e7126ed806cc556527aab.zip 132,894,040
6.2.5 17T608 8e2bf5d96fff884ae8d0e725372238ccc1f3f756.zip 128,614,866
6.2.6 17T620 ae30723fb266a02d4c8daa6c365ea43659bdf42f.zip 128,598,150
6.2.8 17U63 ff9876662477305ed91534eb4195810d812b8dd2.zip 62,410,186
6.2.9 17U203 a1944da972ec3125ed6658ddda95b10331f37f78.zip 61,695,014

Watch2,4

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
6.3 17U208[1] 6.2.8 beta 17U5535e 14 December 2020 12657be9791bc83428ca977ac20ec7e69d9149bf.zip 129,823,474
6.2.8 beta 2 17U5545c e1409c1e7e29ec636be0b3d7e29e210aa82b60a7.zip 128,020,673
6.2.8 beta 3 17U5559d b8f5819b5a86cbcc889608a0e2c5b5672fb3a9ea.zip 103,532,318
17U208 — 892a5a68940290978a24f2a9e06aacdad61ef923.zip 1,467,251,647
5.3.6 16U662 8b9e7510cc314960ca9d9c39e3a4e643d46099ab.zip 791,620,239
5.3.7 16U674 da50629b98b394b7cfdd51a58eaffa3f32db685f.zip 791,623,443
5.3.8 16U680 992e31d2c477d45ceaf794a539946c7473aac849.zip 791,639,319
5.3.9 16U693 abee63eca24b98fed28ab8094ff3d717f3adcfb5.zip 791,634,089
6.1 17S84 16106359585aee070df1bdfd7d6326008018bca0.zip 483,161,336
6.1.1 17S449 f0dde5de1e7cf15eda9594975f63666cf1dbfaae.zip 471,884,383
6.1.2 17S796 b05125eb1abf0d1c9e4b24d8efe2d89f861d1d2c.zip 469,872,857
6.1.3 17S811 40b2d8fbe3d5e0a43da0c70e8dfaabf0bc9bb454.zip 469,874,233
6.2 beta 17T5224g 96b2169e2886159612ab5cb756faf2e5e5b7a335.zip 228,034,650
6.2 beta 2 17T5234f 2716b4d9665ef0791d979c8d856e9842b3450fd6.zip 211,351,799
6.2 beta 3 17T5244c 826d4fda8b55e9e9a53e2be2bb59f80e1db7415f.zip 184,927,220
6.2 beta 4 17T5251a f9f130193892934c85ca4fdc8102fe7258e40745.zip 183,914,164
6.2 beta 5 17T5254a 082a147084b360e9236530f46a1e9442d59d8d96.zip 183,911,219
6.2 17T529 e5af9d8fe5ffe20528ac52fb0ea100db8e4a414e.zip 179,164,775
6.2.1 17T530 3c2da7640590b1f6023a80178181b6061a5cac05.zip 179,353,314
6.2.5 beta 17T5580e 34d6787f822e929b406ecb425e6ee2c76dfa65e5.zip 155,411,861
6.2.5 beta 2 17T5590d 8a4fdafbf113c225c88f873bc100d5681a020f3f.zip 140,913,392
6.2.5 beta 3 17T5600c 2243c39238eb86ba15d8c56a2892472b78b93c2f.zip 134,072,334
6.2.5 beta 4 17T5607a e38a48157e11e1eb9920f13246babe9422a4d163.zip 132,921,754
6.2.5 17T608 1564a8f00a61d6d228a1deaf0d84079e49c882cb.zip 128,636,554
6.2.6 17T620 82feee8883ee3623b44de30ce2e69fba9b5f7b18.zip 128,624,066
6.2.8 17U63 38e503cea9d8c4326fd12db41344e13a423c1e08.zip 62,423,999
6.2.9 17U203 2e41fc8596ce55d10343d276ba36355ab84ce287.zip 61,708,290

Apple Watch Series 3

Watch3,1

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
6.3 17U216 — 26 January 2021 cba42384fea456b333e026bb87edc02389c5bb57.zip 1,546,033,586
6.0 17R575 e032fc38e9d4b3cbe27569f1e0fc33b330e2c2b8.zip 665,584,621
6.0.1 17R604 fc98eef64fe2a04c4d670357f19912aa6b017628.zip 665,617,034
6.1 17S84 d129bc1c68d8a6ce7b42345dd07e5338af38e607.zip 540,612,064
6.1.1 17S449 31c2d1c65b969b12fef368bbeb3194fcebade3de.zip 529,090,788
6.1.2 17S796 1dffaa8f286161ab264f6ad6fb8b74f1ca83d436.zip 527,145,138
6.1.3 17S811 1d03da3a20ce731cafc245f201cb52d044a385fe.zip 527,144,548
6.2 17T529 b2a10420f94621022bda19658a58a3082e300baa.zip 229,792,554
6.2.1 17T530 a94e048a5bd81f5f81423976231af0761cd1a35e.zip 229,841,881
6.2.5 17T608 bf49853430af00be8f0b6550504691650d50bdef.zip 178,983,378
6.2.6 17T620 ef212a56b9c91e7c86b13444cd45a05054a5ebe3.zip 178,965,278
6.2.8 17U63 babb7c4bd4ea895fbf07ccde033437c6447cf004.zip 90,981,249

Watch3,2

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
6.3 17U216 — 26 January 2021 9e53a719b53e5b3206bf81f17df2116ae62d0341.zip 1,555,654,603
6.0 17R575 b64d6232d026654b13ce20987fb02e78325a88ea.zip 665,409,866
6.0.1 17R604 c25123af42a2ae14d26e55e2a5436dc55dcf6972.zip 665,438,908
6.1 17S84 6a786fb1c33a8836c10ee21548d4b2bd5ed7f7b1.zip 540,479,014
6.1.1 17S449 5f94656c1eb719c1aee22cb6f9853fcfab4df55f.zip 528,909,665
6.1.2 17S796 fb34505e34f81e9c86e51a6fa75839cc3e6509d4.zip 526,987,580
6.1.3 17S811 36d9e8cb2872ed0cd3e8430938138984c361097e.zip 526,984,714
6.2 17T529 859f036050c4d210c3bb90c59acf98c14a4e1bf0.zip 229,818,360
6.2.1 17T530 687ef70ebaee6033117a9e80e7de2802cb9265ca.zip 229,874,587
6.2.5 17T608 b88e77b39c0645d12a13dae1fb63764db1ec4581.zip 179,013,344
6.2.6 17T620 0e5c25f03becec62572e61165f0a01d2c9be1bdf.zip 178,997,472
6.2.8 17U63 bbe83d9696006505d2e020b93578264107b822b6.zip 91,006,681

Watch3,3

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
6.3 17U216 — 26 January 2021 09767515de464388db188e19ff7852b3aabef707.zip 1,480,358,905
6.0 17R575 dd735332dc962f38b7f6cf96aa010b3dde8901d7.zip 630,498,737
6.0.1 17R604 3a51a8a8f7a585f7318052faa88bdfcd9f6eb6ca.zip 630,485,251
6.1 17S84 2924bbdd3f740f246e14066523a9ca1abb7838ae.zip 505,102,052
6.1.1 17S449 b1b945d6f5db55890eaebefbaca8925fba2c5f55.zip 493,737,461
6.1.2 17S796 ea62e17bdd6b954dd3527bf4ee44b4037b552e80.zip 491,729,232
6.1.3 17S811 1a8ab3609cc7103a246ed94aba95c743d02a8f23.zip 491,727,372
6.2 17T529 1f1fd9cb282869ecbdcdc5d307e53ef4f2600e3c.zip 200,686,127
6.2.1 17T530 e5dc9b0aeca8c610537f85aded415f3871ec54ba.zip 200,868,612
6.2.5 17T608 94a285caf2f72d39896fe68966e115545c61785d.zip 150,118,889
6.2.6 17T620 a98843ac11bf9a50111505b8834d052f173ee47a.zip 150,106,706
6.2.8 17U63 94006f0c0dcf2983811f9dd22da3f5b044697015.zip 83,909,655

Watch3,4

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
6.3 17U216 — 26 January 2021 c8614502b96123c4c50a51cb8cd50c97be39a506.zip 1,489,403,159
6.0 17R575 28838ed936a02585174530c199950a7fc02909cd.zip 630,312,381
6.0.1 17R604 1e407c6e33c95ee912ec621cfc346096760e202c.zip 630,302,046
6.1 17S84 bc2e9ea601f43031c4b1779e4a979d485110cd35.zip 504,940,902
6.1.1 17S449 0f07bd76c1bdf38a3a87d99f635ffb84f92c8aeb.zip 493,579,829
6.1.2 17S796 e01bcf840ecf599dba6ae0da2fa9dd66da69dc80.zip 491,567,542
6.1.3 17S811 1173d3a2c305f4302f744b2e41b17d6fbf6d5d7e.zip 491,569,347
6.2 17T529 f55b1a721a7181ae67585eed96d6fd1fe275f4ff.zip 200,717,532
6.2.1 17T530 ea0e40fdc292c10ad74df5a306d42b031a832821.zip 200,900,356
6.2.5 17T608 9564a999e21b70b1c6cc35672b3da5b6cb6559b7.zip 150,147,313
6.2.6 17T620 2e6cf2d902d3357a98d02b6d631f6eff3bd7873e.zip 150,133,577
6.2.8 17U63 889fcfc3c51381bd89a8820ef47c6621e4ccb9f8.zip 83,937,806

Apple Watch Series 4

Watch4,1

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
6.3 17U216 — 26 January 2021 5e35b2a4354205dccbdbc58e2975d1dd7d7c3c24.zip 1,505,710,765
6.0 17R575 b2bc245346b87728ece7646486c7dc6f9a4770c4.zip 584,082,619
6.0.1 17R604 5e09e103e48cde05721ac3aee21551f3ad4c1f10.zip 584,072,138
6.1 17S84 de2265d0c84ce6c6471bd0f75375eb05e966c150.zip 456,719,570
6.1.1 17S449 41c2ccacb6e2b01729d79c5acdef7180ec681285.zip 445,392,447
6.1.2 17S796 499c5df29414503227b85cb8dea031aa722bb4ae.zip 443,324,362
6.1.3 17S811 f556d9d82d5c040dee11f3b7c961ef2f33f4c478.zip 443,322,878
6.2 17T529 d6d0073aae93bedd0e5e0da625b8dd1096600ca9.zip 182,072,237
6.2.1 17T530 866572245f96298de80aaad17ff145ce8ce21623.zip 182,088,671
6.2.5 17T608 dfab4e768a2b955f58fe4127501addad7c33fba8.zip 132,968,565
6.2.6 17T620 f13196543af57998dcd63a82374cc4add65cd0ff.zip 132,955,061
6.2.8 17U63 d58f05db430913c4005cd7ec9475d57e44b07bef.zip 73,169,090

Watch4,2

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
6.3 17U216 — 26 January 2021 c6f6c36bb8e0c7f7e9787f7c01beb20a0287c14f.zip 1,477,071,484
6.0 17R575 1f1cc3a3ae09911e6686ce52570390f7765ce93c.zip 584,533,115
6.0.1 17R604 78bf465ec170743742c0b8ffd6439caffd8b5c83.zip 584,528,078
6.1 17S84 c2ae41eaecc99bd493523b12f592754b66fd9edf.zip 457,246,069
6.1.1 17S449 3b6defaa33294e6e375460d8c5d05d2541287e3c.zip 445,788,926
6.1.2 17S796 e99bd564febd348ca427388c824688d16af87b66.zip 443,740,306
6.1.3 17S811 a6410142a9eb97ac164e6911de716b5948879977.zip 443,739,248
6.2 17T529 deb82bae35678bf090b2108a204a85ebf83c1fd2.zip 182,221,147
6.2.1 17T530 2e48d08d20c77dd3a192c0e9fa592569464c5bf9.zip 182,234,263
6.2.5 17T608 278c9e3072495979749a101c9e4511c06e208fab.zip 133,041,174
6.2.6 17T620 4337327a53042b2e36c4732fc243426c0692da40.zip 133,028,151
6.2.8 17U63 a21b2147bb0888befb3ce5c7c1c331021c30ed1f.zip 73,241,802

Watch4,3

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
6.3 17U216 — 26 January 2021 e0644bfb51965889e419741ed70dc6bfa8736e54.zip 1,547,099,285
6.0 17R575 fe06e03c692a1b94db94af21f33ab6cfcd291165.zip 608,512,396
6.0.1 17R604 774494ff13d924a920fd07bb9b2e561a307f6ef7.zip 608,499,960
6.1 17S84 2c39d254d72033fc45d29533ff33267dec6e4a19.zip 480,246,067
6.1.1 17S449 76643458ece9a2df514819961846a71dc896db38.zip 468,808,107
6.1.2 17S796 0419963f8977d28a90e2a8128a773c67a3f4db1f.zip 466,526,379
6.1.3 17S811 9a8edb08a2c200d2ba1b18efe46fed31cc9076ff.zip 466,526,212
6.2 17T529 8df692262968b337e41ff2d4901253b41ff62474.zip 198,053,669
6.2.1 17T530 6d4bf0311cc686a91255aad107d65a41799f7972.zip 198,088,816
6.2.5 17T608 0e095d9b4cff51fffb848e9f526489eeebed3a5f.zip 139,561,205
6.2.6 17T620 6c255c993924b33e2600a468e9d0c4c650ed640c.zip 139,547,403
6.2.8 17U63 15727fc95d836ab2f4106b7f2828478b0eb0ba4f.zip 79,356,466

Watch4,4

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
6.3 17U216 — 26 January 2021 7f80d97fd20de573115c9b9d3cc88f150fc816da.zip 1,519,930,453
6.0 17R575 f647a64a9e0ffaaa7e3d5029dcb4b4fd92302a09.zip 608,960,679
6.0.1 17R604 da48eea21b5abbae8336731a55cae9df023e4676.zip 608,959,571
6.1 17S84 807bed26d1d21f586d04a67f812f8e49697eeba1.zip 480,798,670
6.1.1 17S449 363f192561495746be24583fdba110f91ccfeef2.zip 469,197,928
6.1.2 17S796 50cdbba6597772e2e62b1a1ce248c287126cef52.zip 466,923,000
6.1.3 17S811 ced1c3372336237a16de9d2a3667c639bb6fcd41.zip 466,923,569
6.2 17T529 c8118705296fa21e1162c43f691acc862c67f7b9.zip 198,204,811
6.2.1 17T530 c1f889174ec551c27c1c4cf855256407579d175d.zip 198,245,429
6.2.5 17T608 a315ec6b67d0c610a8a370eeaeea26e9d2deae80.zip 139,630,856
6.2.6 17T620 7db6980c2766dd815c35bedb5113417ef2a012ba.zip 139,620,437
6.2.8 17U63 30712d7a2bfe2da9df513887287afd0df6fcdb63.zip 79,409,067

Apple Watch Series 5

Watch5,1

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
6.3 17U216 — 26 January 2021 63caaac5296a888a56fbc8cd4676f96d48b315ca.zip 1,506,657,615
6.0 17R575 3f6139ce34b5e7f34ef99d40ccb322076f2b281b.zip 585,021,796
6.0.1 17R604 c1c112b43a204d15603240320ce5821946e8f3c5.zip 584,990,704
6.1 17S84 ada3f5d7e05206ba1fded7c30163aefa22126801.zip 457,541,313
6.1.1 17S449 2ae12c2853a3e9bc7cbab31bcc5c70dade96a891.zip 446,288,297
6.1.2 17S796 47e2cb40e1513f5fd6cc5790f2bfa63038d150c5.zip 443,958,361
6.1.3 17S811 6ac416697c87b77093b3b25e2b8d26b30657f14f.zip 443,956,235
6.2 17T529 549ea90490dd4861909da13ffd2d5698ba3fc2c1.zip 182,425,670
6.2.1 17T530 50be61869f12163ee6837aad5fbd2781543ba27d.zip 182,411,058
6.2.5 17T608 a53af0c1769599fc460d52e8a25f2e9ecb8e5c6f.zip 133,453,070
6.2.6 17T620 02977372c285f7235eb977e4def357ed0d86c267.zip 133,444,285
6.2.8 17U63 c42c5a165f02ceb400deb34aca8fc65550aecc36.zip 73,505,070

Watch5,2

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
6.3 17U216 — 26 January 2021 2eb8e3308acb08ae50bf70e60643221f407c5d4e.zip 1,478,333,014
6.0 17R575 624937a82b6bb22b0693e314910296f5d9c44fcb.zip 585,428,017
6.0.1 17R604 64998eada2b8ebee54a2799e399001170c8ef05b.zip 585,417,551
6.1 17S84 a8fabacd01c58afc3823f2d58cc5cca67d62998e.zip 458,005,481
6.1.1 17S449 f1fad9995cc0fa89d82601cd15bc90569a13e673.zip 446,801,019
6.1.2 17S796 27771f09ce328ecb7e1d2c82bad6e1d91d7a2d5c.zip 444,469,666
6.1.3 17S811 b34a107bbdf5e8438c8a09cd583ff1c93701e6eb.zip 444,474,805
6.2 17T529 868a3e78f11c5b0785b6fb046b043efe79d66920.zip 182,570,562
6.2.1 17T530 d47131d93fbffd22af67bbca0801ac5a6e60ea42.zip 182,556,088
6.2.5 17T608 85fd6ff538d8fbfd06eabf11146031c80bd60167.zip 133,521,280
6.2.6 17T620 a982733dfc5ecdd46d5f487402fc770e169c312e.zip 133,511,917
6.2.8 17U63 290a0ba1b9532aec6a65e3e426f5d03a569e849f.zip 73,569,024

Watch5,3

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
6.3 17U216 — 26 January 2021 9a5c2f87dbdbe3a503ff5b1bc3ed527b2175ae7b.zip 1,548,201,541
6.0 17R575 4fdb0a0068467227cd05e4c710329ecd03891f09.zip 609,287,043
6.0.1 17R604 43bb6a34ac18e57789e130891117650652ffe519.zip 609,250,883
6.1 17S84 d419cfa995a56552e8e55ca2374420c59f1ecc85.zip 481,054,465
6.1.1 17S449 2a8905db3d171aac59a44c5e0b0c404415fdbe5a.zip 469,588,395
6.1.2 17S796 594e0eb5ca91f9a98564c72ffedca5eb775e662b.zip 467,155,945
6.1.3 17S811 91dbc9e2cb7c4db912a71658c7b29c1698bf266c.zip 467,155,977
6.2 17T529 b2236ebc6a0aca5ec0bab14fca4be11b07106215.zip 198,544,747
6.2.1 17T530 37eda95fc2c45a683c473a97b822911f00d1be87.zip 198,562,340
6.2.5 17T608 74fa762fd9da8791af368d2f7702744264191b48.zip 139,948,012
6.2.6 17T620 a665cfba526aab5c99b8bd5e6fc52d7ebe0feec2.zip 139,936,031
6.2.8 17U63 5426e663cbf84c3bb171e40fa867a7aa099f43ac.zip 79,684,330

Watch5,4

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
6.3 17U216 — 26 January 2021 94df61e66b4af2fed7cc69089de0b7cbd82856e8.zip 1,521,267,994
6.0 17R575 cb5d0e33da81485a3682c095dddc58701d8214ea.zip 609,853,814
6.0.1 17R604 cf24a3f8516e668589053eb1eda87e4bd570a625.zip 609,962,832
6.1 17S84 cf4b5e698e7dcdfd842f96b5b87dd0bd7bf58d6c.zip 481,733,353
6.1.1 17S449 a9aecb55a809f0c2902b6eabd849092a12fef47a.zip 470,069,334
6.1.2 17S796 98595e26a88deb34e752d46deef2a92578f072de.zip 467,662,290
6.1.3 17S811 c82ffc81851feaba75f0c127068dfa05dc7399b7.zip 467,663,750
6.2 17T529 d818cd5c7badd311111965ec91cd7667f8a3fca9.zip 198,690,038
6.2.1 17T530 45ee4793a04335a5e7941a6ce5ede894410a1185.zip 198,707,229
6.2.5 17T608 748fd91151832c30402b2805a1b186390947a533.zip 140,034,754
6.2.6 17T620 1420e706d66341c81d94228fa97a77482c2d6657.zip 140,021,097
6.2.8 17U63 20fbdbf3dc5d8f2eb7f9179029fa3206d42cd49b.zip 79,763,808

Notes

  1. ^ a b c d Apple inflated the build number in its mesu.apple.com listing, presumably to make the device recognize the update. (e.g. 17U208 was listed as 17U6208.)
    The listings on this page use the build number displayed on the device.
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