OTA Updates/Apple Watch/4.1

Apple Watch (1st generation)[edit source]

Watch1,1[edit source]

Version	Build	Prerequisite Version	Prerequisite Build	Compatibility Version	Release Date	Release Type	OTA Download URL	File Size
4.1	15R846^[1]	4.0 beta	15R5281f	9	31 October 2017	—	a0e3aef65a6192fb4a102646e634236d7ebf3dca.zip	328,198,110
		4.0 beta 2	15R5307f	9		—	ee1050e9e2543c6a04338b835f82bb1ea57634b5.zip	278,800,355
		4.0 beta 3	15R5321h	9		—	8c4cf8a59de26d7c124a250c7a92537933d368dc.zip	233,709,688
		4.0 beta 4	15R5331g	9		—	63b70eefa3d3b678b9869f0744604a8ff95dba53.zip	189,352,375
		4.0 beta 5	15R5345g	9		—	2aa3b2a910a61dc60f2333b0903c2d89c3ac28dd.zip	146,301,931
		4.0 beta 6	15R5357b	9		—	76140a3cb2070e3b1cbbff46bfce9f79f5b25715.zip	127,827,777
		4.0 beta 7	15R5365a	9		—	c5499708546636e5944ca099537bd4ca6c8d7fd7.zip	127,158,763
		4.0 beta 8	15R5371a	9		—	e0ea99aa3df7079e15625761fa3669e9b083c4d7.zip	127,012,863
		4.1 beta	15R5823c	9		—	e942c1fc9c76134f10e40286aa6be7ba2eb925d2.zip	81,693,682
		4.1 beta 2	15R5835d	9		—	826a5a5474f202970b2e6e80cc01760d8c330d22.zip	48,429,470
		4.1 beta 3	15R5843a	9		—	97c9b9976b8367d700e12d7ab14fc3cd4c1b222c.zip	42,901,087
	15R846	—		9		—	77bbcfd1358c1d9798253ae547a639b341fa3bd2.zip	1,141,175,454
		8.2	12S507	9		—	76caa19acfbedfd458b254ce6dcd6a7b848de7f9.zip	1,023,701,491
		8.2.1	12S632	9		—	e9dce7d6a20382130792aa9cc44ddb7ce8254c09.zip	1,013,092,686
		2.0	13S344	9		—	5ac09040b6251b5783828e46e4bc1b579b82a102.zip	810,693,742
		2.0.1	13S428	9		—	03a3afb149a4fd8d5da140703b8837fcf49c157d.zip	810,676,785
		2.1	13S661	9		—	0c33402f99c7cd4a316ad469c8eb099c0f51bbfa.zip	812,208,252
		2.2	13V144	9		—	b7e7fe02fa71e71fe732d017ae7a5d23df7b49e9.zip	809,424,861
		2.2.1	13V420	9		—	ed643ffc9f898cefd3fceaaf88eb1129b2e76e68.zip	809,565,513
		2.2.2	13V604	9		—	7702454372002b1963bd7bb20637bc595dd7a260.zip	809,433,293
		3.0	14S326	9		—	aa35b0b2cbda1515f32b1bcbeeccfe03525ed541.zip	604,907,636
		3.1	14S471	9		—	7fb3b5e5fe2a74c59bafd3b2fcf722eb075df956.zip	603,446,455
		3.1	14S500	9		—	8e993cd7311e4a6e55e12ef058b4f97a4910d328.zip	603,446,131
		3.1.1	14S883	9		—	80f5e3cefb45df5d8646faf533629a572be08612.zip	605,181,313
		3.1.3	14S960	9		—	78b50328bcf36fcdc236eb9a4b9ffa87afd6d851.zip	605,177,891
		3.2	14V249	9		—	e715b65d6472321f30bd1e88ae2ad01faf374fe7.zip	560,000,716
		3.2.2	14V485	9		—	6a3e9e671e3dfa4af3c39b70e823a946bf9f8cd8.zip	559,807,522
		3.2.3 beta 2	14V5734a	9		—	4f241733656ec70ab44395b688fe71f54e04e3d1.zip	560,071,616
		3.2.3 beta 3	14V5744a	9		—	61bffe51e6c28d3b2cec4283d04d42a37b27f5dd.zip	560,087,419
		3.2.3 beta 4	14V5751a	9		—	fcc9dc8fcf44075471e93fffbb1c5d32aaa1424d.zip	560,111,650
		3.2.3	14V753	9		—	a73d80a16c5dd0a7bd1f48b56f3d849564dab577.zip	559,814,703
		4.0	15R372	9		—	b3327773d96fce29637084d5afb53c4e9ee62999.zip	116,008,107

Watch1,2[edit source]

Version	Build	Prerequisite Version	Prerequisite Build	Compatibility Version	Release Date	Release Type	OTA Download URL	File Size
4.1	15R846^[1]	4.0 beta	15R5281f	9	31 October 2017	—	099b748d5283560bcea5ab238997c4607af2fa3c.zip	328,338,472
		4.0 beta 2	15R5307f	9		—	fff68fba256980bf0c3b74f3c5be42d9c29a0ba4.zip	278,950,503
		4.0 beta 3	15R5321h	9		—	630099dd4280628333aec4a0dcf57b0867b3b3f7.zip	233,894,682
		4.0 beta 4	15R5331g	9		—	6d39b9a7b3559cb94e5a00f26019aeacd484a1b1.zip	189,521,385
		4.0 beta 5	15R5345g	9		—	e8ab3f98c1cb43739c7a89c8b154712567920692.zip	146,355,631
		4.0 beta 6	15R5357b	9		—	102b440f1981f3fbae89f09ded1265ce2375de90.zip	127,904,484
		4.0 beta 7	15R5365a	9		—	c2dafa8783e5e7e6740fd20a35879f4e72bb82b4.zip	127,174,405
		4.0 beta 8	15R5371a	9		—	e779f425ea74d69df52125f29cca226daeb539b4.zip	127,047,336
		4.1 beta	15R5823c	9		—	f12dd4dc4cff725a923c8568ece73815073f4979.zip	81,713,142
		4.1 beta 2	15R5835d	9		—	a78a0a18ec28ab03d16e27c9614b5737ad3eafd7.zip	48,445,139
		4.1 beta 3	15R5843a	9		—	b036f57c950cf65df64b933e4b689e893326e7ef.zip	42,915,451
	15R846	—		9		—	b9e191b227fb413b7f09f02efcf10536fa03747d.zip	1,155,926,825
		8.2	12S507	9		—	f9cc6a1fc85c1a7c10802f321f130e321bfd419a.zip	1,032,715,797
		8.2.1	12S632	9		—	5a0132b94902c6dc6555361eb42539069ff6d260.zip	1,024,945,246
		2.0	13S344	9		—	e215ec5c70b090485ac9f20851d015721167af76.zip	826,838,166
		2.0.1	13S428	9		—	a75265af5f3d38fbd73f0cb705d14d7028b430cf.zip	826,772,922
		2.1	13S661	9		—	e5eecae5032ec5d52904c49d8c80976f77cdf01a.zip	827,461,073
		2.2	13V144	9		—	1dcbef69c85db0aad5aa03ce1f4fe111e0015893.zip	823,614,222
		2.2.1	13V420	9		—	47482e97ada5db5ae164397639dead1b8d9d7f12.zip	823,485,505
		2.2.2	13V604	9		—	dd2e5428402c7cac5125a86bb702006b62adb31a.zip	823,621,512
		3.0	14S326	9		—	0019a1d9f9f642a0c1b3c8125ff942316d24c43b.zip	619,028,335
		3.1	14S471	9		—	600fde2650a231232a660f937624b7d8d312fd1b.zip	617,780,908
		3.1	14S500	9		—	24b52dbc03321ddb6779fd29e9814548766ac252.zip	617,781,072
		3.1.1	14S883	9		—	2ad9f2a5c96988e8b4de292c82572665149a9768.zip	620,446,455
		3.1.3	14S960	9		—	d29912438edf3878f0ae3843faaa46b590acc92b.zip	620,442,565
		3.2	14V249	9		—	4d39a736565e65aa0225cd511f1f6c2d904d5e9d.zip	574,955,949
		3.2.2	14V485	9		—	c0128f0c2c11adffc15b48a95916157480e59da2.zip	574,753,043
		3.2.3 beta 2	14V5734a	9		—	e5080658574290bf86db466f39cbcdc7717ef2ab.zip	575,018,030
		3.2.3 beta 3	14V5744a	9		—	cb93ef3ad4eeda8e1e74915a6178fe91445de4a7.zip	575,034,712
		3.2.3 beta 4	14V5751a	9		—	56e5cde4fd6850e14371ec260a29e10095db5337.zip	575,058,827
		3.2.3	14V753	9		—	0d1191ca5e7187128f879b6cde0838a75ba0a40d.zip	574,760,696
		4.0	15R372	9		—	be8e3e46de8221366e0d6427d1d6ee0e5f159c3c.zip	116,044,182

Apple Watch Series 1[edit source]

Watch2,6[edit source]

Version	Build	Prerequisite Version	Prerequisite Build	Compatibility Version	Release Date	Release Type	OTA Download URL	File Size
4.1	15R846^[1]	4.0 beta	15R5281f	9	31 October 2017	—	e096a350d11e713208ac3080df739d3a0c57bc1e.zip	342,839,299
		4.0 beta 2	15R5307f	9		—	3b9f84f652d3a6f86a5ef832a2668ab5ee7ed04e.zip	298,411,841
		4.0 beta 3	15R5321h	9		—	9409d700ea23105112bfe5af20643cfc0f745419.zip	252,699,097
		4.0 beta 4	15R5331g	9		—	67c7b0d12c27da2ce3544817a1d61bbc83665054.zip	206,401,316
		4.0 beta 5	15R5345g	9		—	65f0e5e8ac899fab8b14ddd4bcc053cb93711b33.zip	163,196,184
		4.0 beta 6	15R5357b	9		—	783451e025d76af2e827dacbdd23c2b8fac975b8.zip	144,541,554
		4.0 beta 7	15R5365a	9		—	8a14b066a906e43c0a51cb9a3740a7681dafd288.zip	143,705,767
		4.0 beta 8	15R5371a	9		—	80af0c52465aa7a4ef6bad7493cf9dff6d5f9edd.zip	143,484,248
		4.1 beta	15R5823c	9		—	0cd26d27eef0bc47ba6a444292bc450e47cd2fda.zip	87,692,310
		4.1 beta 2	15R5835d	9		—	f3c353eb166fb84ddc3dae3b06361e3229d19014.zip	55,069,100
		4.1 beta 3	15R5843a	9		—	7847b52cca1136a72e13b03b790940af182ba08f.zip	49,173,079
	15R846	—		9		—	94ed661322997644279a2a118c00d2f0c353eca0.zip	1,156,538,296
		3.0	14S326	9		—	7098901bbb924934fda453aa328b70fd156f508b.zip	622,687,355
		3.1	14S471	9		—	6a00d6bb499bc155d9e5f570f88125aba33c06d0.zip	621,337,443
		3.1	14S500	9		—	282e3eddacd6b669827311b686740825094b4bc8.zip	621,337,159
		3.1.1	14S883	9		—	38bf8725cf2811bb8d8b06f830af704144bdf8b0.zip	622,971,810
		3.1.3	14S960	9		—	c0ff67c3889ea12bc9fb179748521091c08ba6f3.zip	622,935,660
		3.2	14V249	9		—	cd51d74220d41c83732e874aa05a077b2733e422.zip	578,986,582
		3.2.2	14V485	9		—	518dc3b32cd0d98776e622e53aef31cf4319bbce.zip	578,992,021
		3.2.3 beta 2	14V5734a	9		—	4d33604a75c88e6efcf96b421f6db6b082923be3.zip	579,352,401
		3.2.3 beta 3	14V5744a	9		—	63a88928f664c45f6456bc7747de85e6b7b12def.zip	579,295,157
		3.2.3 beta 4	14V5751a	9		—	c77a815bfda92499f4cc866a69d0c5bb5627755b.zip	579,288,158
		3.2.3	14V753	9		—	7ec52ec630ec4d8592a1603115c811d14ee0a80b.zip	578,931,603
		4.0	15R372	9		—	5a1e645fba483c2eb696c73478c2212f7fa8d6d5.zip	121,819,478

Watch2,7[edit source]

Version	Build	Prerequisite Version	Prerequisite Build	Compatibility Version	Release Date	Release Type	OTA Download URL	File Size
4.1	15R846^[1]	4.0 beta	15R5281f	9	31 October 2017	—	d1265a6ec878fd16e26b4b9705544501bd051a82.zip	343,088,543
		4.0 beta 2	15R5307f	9		—	9eb1251ed2973bcb4e75361677b5b5a338e5ecbe.zip	298,628,643
		4.0 beta 3	15R5321h	9		—	88336e042bb65b508029e1f6392f4e29e84d8e9d.zip	252,879,030
		4.0 beta 4	15R5331g	9		—	01ef4bfae6baedc691b509ca275ec64a6e40f38f.zip	206,576,972
		4.0 beta 5	15R5345g	9		—	88f3e5497099e88790b0a8660b326ff735871e6e.zip	163,266,471
		4.0 beta 6	15R5357b	9		—	9e2d66be5a535c7649b0be64ac54a4371a460d1e.zip	144,620,399
		4.0 beta 7	15R5365a	9		—	3aa994b443bbbf753f49fe94fe74446621bcd65f.zip	143,737,966
		4.0 beta 8	15R5371a	9		—	49902f51e55934bb9fe47490d26643255d0c52b2.zip	143,489,080
		4.1 beta	15R5823c	9		—	161fd21af2116028cd3dade692de0050c451c599.zip	87,697,132
		4.1 beta 2	15R5835d	9		—	06469951c8023bc257a393b5ca78921cf0d2c5b1.zip	55,087,428
		4.1 beta 3	15R5843a	9		—	678cbec04c4b58e51a31f433006b3ab3848a5274.zip	49,191,114
	15R846	—		9		—	ea7cec568295401c0f4e13d844121fe0ccdc18b1.zip	1,171,653,037
		3.0	14S326	9		—	a938307d11f6b52b77f6fc167db091f4225ace95.zip	636,640,357
		3.1	14S471	9		—	b3a076dde3ff3d4a53b75accb7bac4a2940998ce.zip	634,761,787
		3.1	14S500	9		—	f18e9ebb06b24a760821be0ac94fe92c3e7ed5d6.zip	634,761,934
		3.1.1	14S883	9		—	e11f2743654ceda407d9a9447f949148738866ae.zip	638,559,314
		3.1.3	14S960	9		—	195fc7a522fa5d3443a9b82b0769f198f7be38ed.zip	638,524,214
		3.2	14V249	9		—	14f177248ab0e09cf97c28f6ef61e67210067a3c.zip	593,139,588
		3.2.2	14V485	9		—	882d63d586b42598fcb48d5975d4d0c6742c25d0.zip	593,135,507
		3.2.3 beta 2	14V5734a	9		—	9493c02cdfac727176abc4fe505657b9b5a7a5fd.zip	593,502,986
		3.2.3 beta 3	14V5744a	9		—	ba08294e5c003840ee0413cb08e564ef8084b3f1.zip	593,441,469
		3.2.3 beta 4	14V5751a	9		—	1eda213d57cdd8867e9e29d626eb24b26112eb45.zip	593,439,488
		3.2.3	14V753	9		—	a7658ea09a88b19a18f3cf8d5af3f0d879d53615.zip	593,074,530
		4.0	15R372	9		—	1d0eec5ed78002af0e9b72b5b50904c3a44cc682.zip	121,831,038

Apple Watch Series 2[edit source]

Watch2,3[edit source]

Version	Build	Prerequisite Version	Prerequisite Build	Compatibility Version	Release Date	Release Type	OTA Download URL	File Size
4.1	15R846^[1]	4.0 beta	15R5281f	9	31 October 2017	—	24cb6a44f9a9a7f03ea3754e659dadc9748ffe8a.zip	343,998,084
		4.0 beta 2	15R5307f	9		—	76f29938b095fa2680829bd8dbf927ac8b8e4ae1.zip	299,551,106
		4.0 beta 3	15R5321h	9		—	491839cc4e847ead27076a2aacae17e685119cbf.zip	253,838,008
		4.0 beta 4	15R5331g	9		—	fb3d7d7ddc4d8ea6f40c2720d0e13979cc92104c.zip	207,554,643
		4.0 beta 5	15R5345g	9		—	406da43becbaa09946bd7c5ae43f1ec59abd32d4.zip	164,352,110
		4.0 beta 6	15R5357b	9		—	019feaa26772464db9ee3cf9c950d6beaed858e9.zip	145,685,191
		4.0 beta 7	15R5365a	9		—	b4bae7760f5121342466ec4217fcdd87ddf0b77a.zip	144,857,853
		4.0 beta 8	15R5371a	9		—	cdb23d494f72878bcab481e54b88e3fe312f14c7.zip	144,647,604
		4.1 beta	15R5823c	9		—	643c50f01ea98760ff9f35866ee0b381d2f0be5d.zip	88,593,730
		4.1 beta 2	15R5835d	9		—	3c80cb38ae196b872277d7a3533ecbec0b525689.zip	55,982,181
		4.1 beta 3	15R5843a	9		—	59a44433f857f8daab2ec7fb1fe5de0e1a48c69f.zip	50,085,505
	15R846	—		9		—	b5e791ee7a0d64bb42226032beb3b2e569422067.zip	1,157,861,426
		3.0	14S326	9		—	1876adcc4bcb7213b851226eced786728052c10c.zip	623,887,590
		3.1	14S471	9		—	62d7fdc797f7a1c300c2a2659c8540f667885878.zip	622,502,537
		3.1	14S500	9		—	b9c1f998f0bacf04125b3a1bdf2d763be579cfe7.zip	622,502,546
		3.1.1	14S883	9		—	5051baf23f712a9cc87e773cccf386ced1806937.zip	624,197,955
		3.1.3	14S960	9		—	a8115a1478c79a0c8c0e6653b40ee61e55b63774.zip	624,160,086
		3.2	14V249	9		—	a5bfea95d08d27a436dbf68e5c06f1f4b20e75a5.zip	580,164,012
		3.2.2	14V485	9		—	3963fe64dc89e2a033135321c6b3c740d6242a49.zip	580,153,998
		3.2.3 beta 2	14V5734a	9		—	25dd5d9d8591b549b90c1a86e331403f17afaa64.zip	580,516,012
		3.2.3 beta 3	14V5744a	9		—	0b46b4ff063dff7821a3cdb3bb827369228cbc68.zip	580,453,661
		3.2.3 beta 4	14V5751a	9		—	af94bc8c0df01fbeb139f7ae958c3334c31ae4dc.zip	580,452,337
		3.2.3	14V753	9		—	aa6df76c4523cf05fa65b76aeddaf39786c4fab7.zip	580,092,506
		4.0	15R372	9		—	e534b72a1afe90200bf7f9138bdee272f230637b.zip	122,964,694

Watch2,4[edit source]

Version	Build	Prerequisite Version	Prerequisite Build	Compatibility Version	Release Date	Release Type	OTA Download URL	File Size
4.1	15R846^[1]	4.0 beta	15R5281f	9	31 October 2017	—	1716f7066a386fb0e39fbe5bb1b47727f0d7b9b2.zip	344,239,101
		4.0 beta 2	15R5307f	9		—	9047804d39743536865927318f0211c25288707d.zip	299,772,052
		4.0 beta 3	15R5321h	9		—	49c1da98e72d35e797b0535ff9baf9082aee38fa.zip	254,030,799
		4.0 beta 4	15R5331g	9		—	b147ad4425fae195c42cc59b72a724627df6b7d1.zip	207,744,675
		4.0 beta 5	15R5345g	9		—	31ef0ade73ece03c7818d0d431f5c665e23c0641.zip	164,419,984
		4.0 beta 6	15R5357b	9		—	ce63a924f3453fed5a5c11b6270a34bb4e4c8944.zip	145,737,380
		4.0 beta 7	15R5365a	9		—	cc81a60d138b8551d4cec5e45d7b24ba03bae1cd.zip	144,884,720
		4.0 beta 8	15R5371a	9		—	556a54c5bc35c83aa3d4428ac5c179ee660bf17c.zip	144,666,220
		4.1 beta	15R5823c	9		—	fb555272acc3e3b9f7c08a9a8007e40c1f228274.zip	88,610,338
		4.1 beta 2	15R5835d	9		—	7b21a08096ef0047fc65a679f1523116f11ba74c.zip	56,001,172
		4.1 beta 3	15R5843a	9		—	869bb9ebbd5561128f2a3784a60f524592906e8f.zip	50,104,880
	15R846	—		9		—	07366c3edc47c38d35b334a456cbfbbc17af5f5c.zip	1,172,910,385
		3.0	14S326	9		—	4472b0154f2436ba4d0bdb6a6f6975a8f9298978.zip	638,481,793
		3.1	14S471	9		—	a17f17dba7c5a755aa1e31a5e1367771397ab8da.zip	636,092,328
		3.1	14S500	9		—	e5c5e441f4558bade701c31f7e9385e19c028793.zip	636,092,467
		3.1.1	14S883	9		—	0c55a72b3b9e6e353d248e386d4d7514a8fb2143.zip	639,825,560
		3.1.3	14S960	9		—	f41547cd7c28dea579549f5715b015c42ccd7f00.zip	639,791,458
		3.2	14V249	9		—	f9bbf74cd462630dc3810f8afdb8022ecb753dd1.zip	594,297,452
		3.2.2	14V485	9		—	6567e3bdd866a609c649aa25670d349aaf5f623d.zip	594,298,253
		3.2.3 beta 2	14V5734a	9		—	79d94044817ef1e04c56e382428fb3e56ed4e210.zip	594,671,294
		3.2.3 beta 3	14V5744a	9		—	5742a92602d2bbd1d4f934b71a3c80b35bf7f41c.zip	594,609,643
		3.2.3 beta 4	14V5751a	9		—	f390a155091f5b1744630eaa3432c0eeba61aca8.zip	594,607,047
		3.2.3	14V753	9		—	f669eab541cc8bac0f3f4e6e4c64004dffbfb2c3.zip	594,236,269
		4.0	15R372	9		—	7bd4bc86d9ba65931613d8b182dc710d4f692bac.zip	122,995,361

Apple Watch Series 3[edit source]

Watch3,1[edit source]

Version	Build	Prerequisite Version	Prerequisite Build	Compatibility Version	Release Date	Release Type	OTA Download URL	File Size
4.1	15R846^[1]	4.1 beta	15R5823c	9	31 October 2017	—	ed7a13b7153bef3e17917910f3677b17c809d220.zip	120,933,249
		4.1 beta 2	15R5835d	9		—	10224885e69bdb9ee325d1b0e52e14ad3ff451b5.zip	87,660,136
		4.1 beta 3	15R5843a	9		—	2c96fa54e5ab4a5ce3c7bf0013feb358529187fa.zip	57,626,631
	15R846	—		9		—	4d581f84985b144ef4ce290f90d6ad4db2a7b5e6.zip	1,675,223,959
		4.0	15R610	9		—	750736eb4282eef080471f4eb0aa764bcf5eb6a1.zip	153,121,060
		4.0.1	15R654	9		—	eccf7770c8cb4c6d518d0c4a586dad07e467067f.zip	152,841,901

Watch3,2[edit source]

Version	Build	Prerequisite Version	Prerequisite Build	Compatibility Version	Release Date	Release Type	OTA Download URL	File Size
4.1	15R846^[1]	4.1 beta	15R5823c	9	31 October 2017	—	bbfea804ba0ed4522a034875d4d8686377906660.zip	120,952,666
		4.1 beta 2	15R5835d	9		—	a17223557e843e41dfda37f0ddcd38598403fe43.zip	87,676,751
		4.1 beta 3	15R5843a	9		—	f7c61865ec19471cd5c833726dfc6a341cb93275.zip	57,643,398
	15R846	—		9		—	b849e61e345500b30b31c79d9bf7a56159c41e93.zip	1,689,366,968
		4.0	15R610	9		—	2cc46662f12260ce4c8cb0affc72b927e3f33264.zip	153,134,970
		4.0.1	15R654	9		—	b50c27f97b6bc2539d46a3ab14b5626bc8ca82ba.zip	152,850,307

Watch3,3[edit source]

Version	Build	Prerequisite Version	Prerequisite Build	Compatibility Version	Release Date	Release Type	OTA Download URL	File Size
4.1	15R846^[1]	4.1 beta	15R5823c	9	31 October 2017	—	b34624e2a0512dbe1f35e98e04f9c79459057509.zip	93,589,728
		4.1 beta 2	15R5835d	9		—	e739519988067a780820f5e5957be2b2cce7518f.zip	60,992,878
		4.1 beta 3	15R5843a	9		—	5702308ba373086a60226996743163446e1c4f46.zip	55,069,236
	15R846	—		9		—	6f4ddf62592873ff3ed8f9c5190b748ec664c54b.zip	1,631,089,743
	15R846	4.0	15R607	9		—	0b4d01e3984afc55c31bad183c587478008f0eca.zip	128,167,411

Watch3,4[edit source]

Version	Build	Prerequisite Version	Prerequisite Build	Compatibility Version	Release Date	Release Type	OTA Download URL	File Size
4.1	15R846^[1]	4.1 beta	15R5823c	9	31 October 2017	—	b34624e2a0512dbe1f35e98e04f9c79459057509.zip	93,589,728
		4.1 beta 2	15R5835d	9		—	e739519988067a780820f5e5957be2b2cce7518f.zip	60,992,878
		4.1 beta 3	15R5843a	9		—	5702308ba373086a60226996743163446e1c4f46.zip	55,069,236
	15R846	—		9		—	6f4ddf62592873ff3ed8f9c5190b748ec664c54b.zip	1,631,089,743
	15R846	4.0	15R607	9		—	0b4d01e3984afc55c31bad183c587478008f0eca.zip	128,167,411

Notes[edit source]

^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j Apple inflated the build number in its mesu.apple.com listing, presumably to make the device recognize the update. (e.g. 15R372 was listed as 15R5372.) The listings on this page use the build number displayed on the device.

[inflated-1] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j Apple inflated the build number in its mesu.apple.com listing, presumably to make the device recognize the update. (e.g. 15R372 was listed as 15R5372.) The listings on this page use the build number displayed on the device.

[1]