OTA Updates/Apple Watch/4.2.3

Apple Watch (1st generation)

Watch1,1

Version	Build	Prerequisite Version	Prerequisite Build	Release Date	OTA Download URL	File Size
4.2.3	15S600b	—		19 February 2018	c39802786e6491e8067d80293553607a357844e1.zip	1,148,099,598
		8.2	12S507		b6b1cbaf33d43671e9aad03eb0527a7af57337b0.zip	1,031,773,615
		8.2.1	12S632		29a78de35e696bb6b68a2e6c19d2cb7d99db9c40.zip	1,019,999,776
		2.0	13S344		9abbfa754a4ff2f2329a0ab639230b56ea7c714b.zip	817,937,297
		2.0.1	13S428		c3d8c584b5ce1428ecb9c480e61727fd8562c534.zip	817,874,616
		2.1	13S661		cc482a1a65ad24ef807250991574199d7eaf6bb3.zip	817,548,317
		2.2	13V144		779c9437061b0eba562a54e773e54d22ae8599a0.zip	816,481,524
		2.2.1	13V420		2d1f55c963e3654a62e46e5f55740128c319be21.zip	816,572,123
		2.2.2	13V604		b7792f768e6ac2bcd2a5ff42dba8ac582c297229.zip	816,573,765
		3.0	14S326		6a4eda8737b0fcb042339f3b3353ee0223a00508.zip	615,981,780
		3.1	14S471		bfc8dfd002409d602ab75742216832ea76a3291f.zip	614,906,285
		3.1	14S500		4ee256e2cd74a3cbe4f9aa00852be97b38ee0361.zip	614,906,138
		3.1.1	14S883		408e89fb072f36f8375e7e05eefd8a565a1e565b.zip	611,906,084
		3.1.3	14S960		b8ce691d40998668732e6f6a9600ea86de280818.zip	611,927,118
		3.2	14V249		276edc689818dbba81a59a7873b5c01edec99fae.zip	568,447,351
		3.2.2	14V485		aa45f452e25713ef42db1f8035bcb947ce615c91.zip	568,348,487
		3.2.3	14V753		6746ea94903739020c07cc45b2a294941524653e.zip	568,301,404
		4.0	15R372		f5792d58aa7c6c66d593af53936293f11c43ea95.zip	177,087,239
		4.1 beta	15R5823c		777161571f6491dce0b732485aecc21f03affa58.zip	156,278,536
		4.1 beta 2	15R5835d		1d96ff25f153bb2b6849a8f252415047e8fc5dfd.zip	141,170,169
		4.1 beta 3	15R5843a		83c06446f22d6dcee84c9359b4585c907f72ed58.zip	140,043,628
		4.1	15R846		bb71c507a978d00e53c18f3a13244981b01b72b1.zip	139,233,751
		4.2	15S102		72bf9504732aca043f264c1ce65f1bad5c3a94d7.zip	51,586,040
		4.2.2	15S542		58fe2d0ba0057c82ffa468d7bac4c829c626bdce.zip	17,336,238
	15S600b^[1]	4.2 beta	15S5085b		51ee97a704ed13c7f2127408d33c1611d284689f.zip	82,865,947
		4.2 beta 2	15S5090c		70c3dc4331dd031cf322934489eecd46274b4084.zip	69,874,307
		4.2 beta 3	15S5100a		6970d1a53b8e702474ee2c8b32e0923bbfde303f.zip	57,792,973
		4.2 beta 4	15S5102b		cedc3a65cdec41bfbf3c4fa285a0eb858b44c29c.zip	57,754,390
		4.2.2 beta	15S5530d		50ddad3d27ac958616025b3c2b0ce0d0afda988b.zip	43,834,917
		4.2.2 beta 2	15S5534a		a5b194c2350b012fe6bf50ec9525fe90295b94f7.zip	42,325,491
		4.2.2 beta 3	15S5536a		ee4b3f81c0d56d76a5c9b891861e0b0823960a32.zip	41,030,068
		4.2.2 beta 4	15S5540a		33067157281c3763a3e2e136332ec6eb3b6f6483.zip	39,838,802

Watch1,2

Version	Build	Prerequisite Version	Prerequisite Build	Release Date	OTA Download URL	File Size
4.2.3	15S600b	—		19 February 2018	95d993b8959b8c968cf0e3d90a3269155ca9db65.zip	1,163,530,800
		8.2	12S507		52cdca9eeeaf307669c9983f409d8b7d57be0525.zip	1,040,028,169
		8.2.1	12S632		f10092386ff1ecd61c1c8113ebabbc49d3b596df.zip	1,032,120,595
		2.0	13S344		49144cdd5643ba42238045050e5e903d5d24ebc9.zip	834,263,313
		2.0.1	13S428		0c53c52e79ce12f1ae76bbba5a5fc83f64f77470.zip	834,271,278
		2.1	13S661		4eef6a6425ddefdf504d7390d30e12203b8eb4a5.zip	834,623,263
		2.2	13V144		b6ca4fe8eeae9aa0ace3b4c340c1645eac421c2c.zip	831,048,058
		2.2.1	13V420		ec498e168b56f150982d8e7b66502854c1de3bad.zip	831,015,378
		2.2.2	13V604		762ff4a966df56a6286c1f66e88c85242eeef7a5.zip	831,002,818
		3.0	14S326		ab180158df0568aab8fa7f1f0077c77e21678084.zip	626,456,973
		3.1	14S471		cb0e7ea776511b29532fb89e29aa32979f51b9a4.zip	625,409,705
		3.1	14S500		8fb48d3d25c137d11e304a24b60fc0073a2986ed.zip	625,410,031
		3.1.1	14S883		81d85224ef9aa2e2cd979e21ddd9a32a58d9d3d7.zip	626,139,398
		3.1.3	14S960		7998b2c2a82c127289e78f4ea524c3fadcef8d94.zip	626,160,946
		3.2	14V249		e63807b770ad4fa07b6c7a5c4091e962dc0e1a22.zip	583,072,843
		3.2.2	14V485		6b132f8d0ae287f5b812ffa40698903bcca6d91d.zip	582,976,833
		3.2.3	14V753		a610314b7882ad18f6ce2c618186bde817e3e0b2.zip	582,929,729
		4.0	15R372		bb6dd2a9e81c32deb56efbb3b6105245cd08fe3d.zip	177,117,530
		4.1 beta	15R5823c		42cda55e76dbc333e582f2a72633574477e473b8.zip	156,296,846
		4.1 beta 2	15R5835d		183a8755da34b87bcd7c72452d8d40899827ead3.zip	141,192,173
		4.1 beta 3	15R5843a		c38116cef78db70f2b1cf7741f4e717d1f1a1c44.zip	140,061,706
		4.1	15R846		525add9a5c424aa456bb884cd841bcff97da8f15.zip	139,234,154
		4.2	15S102		8fd9af1f97bea46e286d76ace2896cbced00a165.zip	51,602,289
		4.2.2	15S542		014915debf50eb64572a92345243c39592c3d25f.zip	17,351,184
	15S600b^[1]	4.2 beta	15S5085b		7977e2ccf00d791c5a2d159852ad6a209164a510.zip	82,881,330
		4.2 beta 2	15S5090c		e78afdbba84ee3b828ac8f920f7564d2631c8517.zip	69,897,554
		4.2 beta 3	15S5100a		d00b03d0068eada836725f53122e8e2a411a8d3c.zip	57,802,878
		4.2 beta 4	15S5102b		77a7e810f0ec9c33fda03c7aa56ef79475807f9f.zip	57,765,039
		4.2.2 beta	15S5530d		f7ba5d2e078994331021a37f30a4377b006e982c.zip	43,850,801
		4.2.2 beta 2	15S5534a		06c6f2945ae2358faf02db040fd5698e3a7fb832.zip	42,341,226
		4.2.2 beta 3	15S5536a		f4de00157cf79aa0c3a22b6ef18748454defb1d1.zip	41,045,521
		4.2.2 beta 4	15S5540a		6dee300add6dbf1eb6b3f930bfd1757dbabe5a79.zip	39,854,715

Apple Watch Series 1

Watch2,6

Version	Build	Prerequisite Version	Prerequisite Build	Release Date	OTA Download URL	File Size
4.2.3	15S600b	—		19 February 2018	a45e9b46d42a6ada9db320bcc881e289914bf7bf.zip	1,164,443,659
		3.0	14S326		d700c74dcb8d84aeddbf8b64686a4d48ba8ebe3c.zip	632,572,705
		3.1	14S471		cd9881ed39840ccff9fe2dbea260181e0cdde867.zip	629,212,027
		3.1	14S500		8fb6698bdcc97bf3a268c978dc953590a6aaa57f.zip	629,212,162
		3.1.1	14S883		9f27d073bf37dc21ad90de366a4e4df4eb5c1607.zip	629,927,502
		3.1.3	14S960		67673095f8816cb1e9e0cf5912b32d246f6a4844.zip	629,913,305
		3.2	14V249		6ac9801450cbd11953355f84fabb3ace88d20a95.zip	586,304,748
		3.2.2	14V485		f61594e55ccf141d56fdfa2b600e0c7aecf85579.zip	586,160,866
		3.2.3	14V753		d95d799040f3801fb2bab8ff4f292c64e10146bc.zip	586,108,109
		4.0	15R372		823a26b41ec4e7882c38e95adad35a3fc6e04c82.zip	189,913,690
		4.1 beta	15R5823c		c26737c5fad62bee8055adf6605470c6899cabc7.zip	169,473,886
		4.1 beta 2	15R5835d		888ccdd9f1e49889795fc308b6e12a5367eaa2a4.zip	154,163,390
		4.1 beta 3	15R5843a		373d97c760b6de269ee91038fefcbf1c5279da39.zip	152,915,470
		4.1	15R846		417276a717a01cc4fb65e0960165e9f2829cddf9.zip	152,080,018
		4.2	15S102		6ac7cde655c60b30b6ffb093f02e2ec3270afce8.zip	58,511,782
		4.2.2	15S542		30467ab8beaceff35a5abae8670cf7cdc13e6959.zip	23,247,131
	15S600b^[1]	4.2 beta	15S5085b		f1728abf1b275330f5fa69c30686e25b9c313b8a.zip	89,377,161
		4.2 beta 2	15S5090c		de9fb85a588a7336554cfd02b97007d915a1620d.zip	75,799,606
		4.2 beta 3	15S5100a		770ce514c15f0ff9b6ca34b0af61c1de7500468a.zip	63,500,335
		4.2 beta 4	15S5102b		d0a00ed4373d3e627d1857991821b860419ab429.zip	63,460,953
		4.2.2 beta	15S5530d		c92aeea7e8fb2d1b5959e1903abcad2d7e38293f.zip	50,050,773
		4.2.2 beta 2	15S5534a		30be4af462a6753c091ce65474aeea48a27bd6a3.zip	48,280,008
		4.2.2 beta 3	15S5536a		800b0bc3f5e092bef5bde377ccc09e0dc00f87ea.zip	46,955,443
		4.2.2 beta 4	15S5540a		f112a0a1fc1e1b3521b074251c9fae4934cde314.zip	45,757,088

Watch2,7

Version	Build	Prerequisite Version	Prerequisite Build	Release Date	OTA Download URL	File Size
4.2.3	15S600b	—		19 February 2018	0f2539d2bcea93bb4428f084b270d310a662595b.zip	1,179,696,659
		3.0	14S326		ffcc18e13693e7a224cfb94a2d3ff39f2652c2b1.zip	648,798,951
		3.1	14S471		e5545e41c49a6fc3008e1f90e735a6c9900194ea.zip	647,541,075
		3.1	14S500		a77ab62721d718ff5b18fb5699c08b473a76d9f2.zip	647,540,428
		3.1.1	14S883		b7eb0fdf4229bf2d54e0ec182f1bf32377806a8a.zip	644,200,636
		3.1.3	14S960		4fabef39059f0fbd1090fd7757e693f3f3b634c9.zip	644,188,439
		3.2	14V249		42055fb8add5b215aa456daabfee8419140e7618.zip	600,410,845
		3.2.2	14V485		ded94b49a1d17711af8dc805255bb2ad702429f4.zip	600,275,707
		3.2.3	14V753		f191a63cbdede3134bca8ad10a7c92b37ddd3a31.zip	600,221,850
		4.0	15R372		0f1f009cb1cd1b38b803be4eade948b9b58ac48f.zip	189,942,531
		4.1 beta	15R5823c		50c004090924668f70b3bdafddc0fa6f704539f9.zip	169,482,183
		4.1 beta 2	15R5835d		4c247fc5b52e71cd45e7f0b9fa3d24cd988ae6ea.zip	154,178,321
		4.1 beta 3	15R5843a		3ae9e2fb2159c48336934b06f3f6bd3ec4c4adfd.zip	152,914,424
		4.1	15R846		9f343a86fdf0dca42128217f2b8794ebe2b04bea.zip	152,094,776
		4.2	15S102		12a3cbc3b1af362a21827b0cb6405c6fb9bc0f71.zip	58,526,755
		4.2.2	15S542		f5ef83740e1ca6f7d97f4e07390c2863f0c362e3.zip	23,261,833
	15S600b^[1]	4.2 beta	15S5085b		e2a50b8633bf286aad8f8956c397f30ef3d6ad54.zip	89,398,550
		4.2 beta 2	15S5090c		d719115c9d04ae809df7494ddd8b805a2aa1eab2.zip	75,816,854
		4.2 beta 3	15S5100a		8da4fb0742d6efc9f07aecb1cd37d661c70dc529.zip	63,511,212
		4.2 beta 4	15S5102b		2a0810c7b4b4de523ba88f987a77afdff397378a.zip	63,481,868
		4.2.2 beta	15S5530d		30e8b065bf1a297065d0102a99ae1474e1dc2021.zip	50,064,950
		4.2.2 beta 2	15S5534a		ddc3bd639e969f0af37f384505d92932d10e7392.zip	48,294,874
		4.2.2 beta 3	15S5536a		d45e075882093d947c3a2016fce91b37946b290f.zip	46,970,340
		4.2.2 beta 4	15S5540a		d2291820c5117a1fcea8c0152595b2a1a2bd9a00.zip	45,772,060

Apple Watch Series 2

Watch2,3

Version	Build	Prerequisite Version	Prerequisite Build	Release Date	OTA Download URL	File Size
4.2.3	15S600b	—		19 February 2018	b47a1eecda152055e15a8c0844a4f8128f01a85a.zip	1,165,725,647
		3.0	14S326		c72442e7c5b2ce21a15627d0e44f57d3a4c4e1d9.zip	633,808,037
		3.1	14S471		bd8512ec198e1df119c5a7dbb61d9157431e78ad.zip	630,444,224
		3.1	14S500		669316b37ec373360b5c3fa5f5b5a79ac1efef32.zip	630,443,875
		3.1.1	14S883		8f0355d9b10896aed1797282e66b576ff51649e2.zip	633,084,976
		3.1.3	14S960		7743b53ff6be263e950963ed9e9637bf712017a1.zip	631,698,086
		3.2	14V249		7aed05be5ef49b962fdcf330769e205596985570.zip	587,423,076
		3.2.2	14V485		e631114f52f05e922a14569fec2b16e1f2b20a9c.zip	587,288,869
		3.2.3	14V753		753f1847cb5a7337e362b2d4c7422236a252da62.zip	587,236,377
		4.0	15R372		57895e34018b295cb81f8b261189625ca19ed74c.zip	191,074,140
		4.1 beta	15R5823c		da5d20670b3bf9c03bf4c9b6146a6259f6f65d5c.zip	170,360,281
		4.1 beta 2	15R5835d		aa154d00fcc572713f428c3e4f692f92da86cf21.zip	155,068,005
		4.1 beta 3	15R5843a		523e45b0c7db30e99af2dc2da3d79b6db8733cea.zip	153,807,560
		4.1	15R846		da720b37a175b8f673491f5a590c48ce6ea0b04a.zip	152,970,871
		4.2	15S102		56f6a5055a35106c297ba8d856fc97178d1a281e.zip	59,405,082
		4.2.2	15S542		e3edc5c6f0477ec80297e3fc23854db2299adff0.zip	24,139,701
	15S600b^[1]	4.2 beta	15S5085b		905d0b983e4b3397602387596e285303f772ab7b.zip	90,277,831
		4.2 beta 2	15S5090c		c687965bc50bfc35dbc5761484b9b4b023a01560.zip	76,700,638
		4.2 beta 3	15S5100a		0bd8cb5549c88672f2c8185d3a11c44f8eb3e126.zip	64,388,757
		4.2 beta 4	15S5102b		ac742095bfaab7e9391a7b748d51bdf1ba291385.zip	64,357,746
		4.2.2 beta	15S5530d		fc60f1e64e7f6d1402163de22e33706a27bb862b.zip	50,943,151
		4.2.2 beta 2	15S5534a		2b887d1af5e92011576c3b29770d53d7d45f87c2.zip	49,171,339
		4.2.2 beta 3	15S5536a		9bf6a3561683087258e07fecbe80cb72597be53c.zip	47,847,884
		4.2.2 beta 4	15S5540a		e136250bf22151ba5d59d89190bab4d22a87bcf1.zip	46,649,699

Watch2,4

Version	Build	Prerequisite Version	Prerequisite Build	Release Date	OTA Download URL	File Size
4.2.3	15S600b	—		19 February 2018	251d65d96c6d7eeead5516379100ad40e681350f.zip	1,180,814,479
		3.0	14S326		d5f444eae6140af7cdb25ff90e4f8dcf66b1aee5.zip	650,013,610
		3.1	14S471		30f9e3240ef59b182aa7b53680108f16a6e29f47.zip	648,737,562
		3.1	14S500		744310be5d65b7e067b8478c1fb57d86039aa00e.zip	648,737,356
		3.1.1	14S883		9dd353d492ae5278bd9d0aab0c6b8d73376306de.zip	645,394,339
		3.1.3	14S960		6593b332d518e2e8f9ed1bc47496eda3b355589d.zip	645,377,222
		3.2	14V249		683d03b37d525f4043388b199c9efa4954ed1a4c.zip	601,553,023
		3.2.2	14V485		f4e1174271569a4446f02eb6062bccfd30c745a0.zip	601,426,069
		3.2.3	14V753		67ef1e4ae8fcb7e18f86cafd2d42f82a6027955e.zip	601,369,785
		4.0	15R372		7e7f6bed0cfddfe860021f73768fcc9d5a699f8f.zip	191,091,227
		4.1 beta	15R5823c		231a3b5507adba33383d540d27976ef082323ed5.zip	170,389,001
		4.1 beta 2	15R5835d		6f446e18651b401970c32dac3649dc25b9a0e3e7.zip	155,083,414
		4.1 beta 3	15R5843a		ac8a2e0d5da97e7733dea59b405ef13819ba4b15.zip	153,815,004
		4.1	15R846		b50c668d2d7731f1c855c7cc08f7eabba25327be.zip	152,986,752
		4.2	15S102		2fd218cc3faeb307affdf2ffdcb7ed08d7765790.zip	59,421,803
		4.2.2	15S542		4d21dcd2b69d5b5765e49bd34b58af4f43c5127a.zip	24,155,506
	15S600b^[1]	4.2 beta	15S5085b		133c8867b02be467743e3158cf3319beec764e73.zip	90,305,614
		4.2 beta 2	15S5090c		659c70fbb803ee0fc81880f90e90b12d1e726b44.zip	76,714,297
		4.2 beta 3	15S5100a		3612592974a9d9454b55324b4b9aa9c70b200b36.zip	64,409,406
		4.2 beta 4	15S5102b		91beb2e982cbe8de80875162fcdad0793fbaf995.zip	64,379,374
		4.2.2 beta	15S5530d		0d177e4e118230315eeefc1f6cd7486a390e73b4.zip	50,958,734
		4.2.2 beta 2	15S5534a		adb7b2e7b7e75d8f22da1fed049b48ea87656092.zip	49,188,994
		4.2.2 beta 3	15S5536a		4c978d60340b459e3717ebfa60a26cc374a773bc.zip	47,864,567
		4.2.2 beta 4	15S5540a		f811442b1596974a27d526a606e5ccf1e25ef654.zip	46,666,286

Apple Watch Series 3

Watch3,1

Version	Build	Prerequisite Version	Prerequisite Build	Release Date	OTA Download URL	File Size
4.2.3	15S600b	—		19 February 2018	3028535487f133c3416ac6fbb0ce88a5cb856f47.zip	1,681,431,462
		4.0	15R610		03c0a99c4466f2d8a2fb9de20869617b15e3e563.zip	225,270,741
		4.0.1	15R654		9a08e807ce2f504573318ee6e0aeba373eda55bd.zip	225,100,613
		4.1 beta	15R5823c		929b08f0d13e7ed85d79e4edced9c00c4f3ef588.zip	205,922,729
		4.1 beta 2	15R5835d		c3861caa7d1f7a180e5127e7e947ad1d3df27857.zip	190,645,657
		4.1 beta 3	15R5843a		335e635b4055f34793c5a5db52d5c4be122c18fc.zip	188,248,942
		4.1	15R846		8eead75c266b7afaf74746888e8a8708c2b0c887.zip	187,444,621
		4.2	15S102		176d33563fed0d59aa7a65844f4698b554618d9c.zip	66,927,824
		4.2.2	15S542		19a341e0c00cac49cd4beb2ed182cfc8ddbe11d1.zip	31,354,683
	15S600b^[1]	4.2 beta	15S5085b		f7033617807b369758cd99175fcf703c94d9489a.zip	122,877,011
		4.2 beta 2	15S5090c		1ce88e9c45c97031d0ee743156fb3570145c0063.zip	109,616,926
		4.2 beta 3	15S5100a		e550c6d4ec0d0d15d3429def4d4fb96879841267.zip	72,458,772
		4.2 beta 4	15S5102b		42fc2d141a6f3c8e1890fec6fa0fc0d64d1ee0c4.zip	72,430,307
		4.2.2 beta	15S5530d		3d5f7ef3ac348eae64db75950ee313da38045b56.zip	58,675,037
		4.2.2 beta 2	15S5534a		59a730d6d1b515ff2c6911d0d8dfb064858162c1.zip	57,001,051
		4.2.2 beta 3	15S5536a		ffa5bf8c3c34cbe6164b0c6e9cacb80de97cb403.zip	55,643,663
		4.2.2 beta 4	15S5540a		b81ac9f4da2c5ec9980589a5244ca5a8bc367442.zip	54,428,348

Watch3,2

Version	Build	Prerequisite Version	Prerequisite Build	Release Date	OTA Download URL	File Size
4.2.3	15S600b	—		19 February 2018	9fdc43586be532733aa3379b8e89e2a0c2e2ccc7.zip	1,696,922,233
		4.0	15R610		babaa0f6d056c208644d1d70ce0cc63cbc9bca38.zip	225,300,261
		4.0.1	15R654		2372e16d5a1f6095b5870e7426cb1d7097a27ae6.zip	225,127,781
		4.1 beta	15R5823c		6b0896d3b65b2360a4ccfedbc77c9de55e522eaf.zip	205,948,011
		4.1 beta 2	15R5835d		97e15e6de641348700bd59585f3e678b9d7e309e.zip	190,674,051
		4.1 beta 3	15R5843a		988611d78dd0a2ef7fc05b491538e95b78c8266b.zip	188,267,489
		4.1	15R846		8c5e6255e18725378763aad417e5a4bd88d4f32b.zip	187,472,184
		4.2	15S102		bd5807540884b92550a464cda01b8ca41860f8a5.zip	66,942,875
		4.2.2	15S542		66eaba88959904a0690583aa20814928b09410d2.zip	31,370,872
	15S600b^[1]	4.2 beta	15S5085b		8ad48a6c0c009c49d74a772be903bf52ff593b86.zip	122,884,317
		4.2 beta 2	15S5090c		5f7e46409db89a7f8c3ed02a0cfa224a9f54b09b.zip	109,631,799
		4.2 beta 3	15S5100a		8c942335398161f59e5bf4d5a5d7c8cf3fc6bf0e.zip	72,468,820
		4.2 beta 4	15S5102b		2b38c8f5cfe3506e558997fc1297b1710b5c4dad.zip	72,441,976
		4.2.2 beta	15S5530d		54bee0577b19238b2f5bbf6bd3d564d29a97fc09.zip	58,690,616
		4.2.2 beta 2	15S5534a		605e894fd9724ac0bb386c23f846e5b538b122c0.zip	57,016,313
		4.2.2 beta 3	15S5536a		1f9a7174c555150c27e01096781bfae13ace724e.zip	55,659,518
		4.2.2 beta 4	15S5540a		3f63f27c154d903255931a6b76cd11c5913bb767.zip	54,444,202

Watch3,3

Version	Build	Prerequisite Version	Prerequisite Build	Release Date	OTA Download URL	File Size
4.2.3	15S600b	—		19 February 2018	7c69e04d01fa155f2f0269f4f5b61dcbaa4ac622.zip	1,621,677,642
		4.0	15R607		da1131058f7a502cb103cef37ed66094451d4e10.zip	196,150,010
		4.1 beta	15R5823c		6267c0bb993dd0cab6b598918d07e32ec057a9a3.zip	175,318,540
		4.1 beta 2	15R5835d		bc7955fc0c6207db09e6cbb47bda66fcd69090e9.zip	160,047,547
		4.1 beta 3	15R5843a		ce1a95be33cfb0f01266f5866c6f6ee4e07cce1c.zip	158,841,459
		4.1	15R846		21080f8fb92b88fd4dc61b85ea10d06ecd515bbf.zip	157,995,679
		4.2	15S102		a3e9129925468a68c74c8b28e6230a4199e0ffd7.zip	63,395,738
		4.2.2	15S542		c56c163634edffff72148ae92647e1050a414a59.zip	29,100,762
	15S600b^[1]	4.2 beta	15S5085b		fb8bac98fad74e5c694b94ca01e2eed423cee155.zip	95,036,282
		4.2 beta 2	15S5090c		30dd7d6048124f28006f61230359a4bf41fcacb2.zip	81,926,760
		4.2 beta 3	15S5100a		f12aeabc16d23df39566785e1c87779d59c94622.zip	69,862,968
		4.2 beta 4	15S5102b		5686017ce0b00c685eb41b77abc70e236d53b481.zip	69,835,358
		4.2.2 beta	15S5530d		1f557897c96006b098e476b78e92d236d188203e.zip	55,932,089
		4.2.2 beta 2	15S5534a		00d3bd52583864cb552070b85031f834a9f95873.zip	54,162,263
		4.2.2 beta 3	15S5536a		9dab1c69b6ad7361c2f0b1ccb6c51a456a4b9a3e.zip	52,831,314
		4.2.2 beta 4	15S5540a		64dfd6189ca224ab770d288e0145fb57be693fda.zip	51,620,800

Watch3,4

Version	Build	Prerequisite Version	Prerequisite Build	Release Date	OTA Download URL	File Size
4.2.3	15S600b	—		19 February 2018	6420f89abfede2600a5d008b0eb8fbfecb0115c6.zip	1,637,024,817
		4.0	15R607		b77204802d1cb4ef5f726309a069e39a1c6e0a2c.zip	196,184,104
		4.1 beta	15R5823c		eef55783ae250f913eeb794e6b9396660f7255cb.zip	175,338,463
		4.1 beta 2	15R5835d		d9676896fe0c456a658d1ed3b126542b69616afc.zip	160,068,690
		4.1 beta 3	15R5843a		1ba708bf82e7956a78f5ff4029eb7ad0c2063391.zip	158,877,531
		4.1	15R846		128046f33485a43e3b5731745319531723db9895.zip	158,011,247
		4.2	15S102		d5cb9a97f708da1ac962ca6afeec8a3ffb93252c.zip	63,410,490
		4.2.2	15S542		ad68b311013151374b6fc9408c295196a642c10f.zip	29,116,662
	15S600b^[1]	4.2 beta	15S5085b		c2cdaa9c59bc54117c13901fd09213da53a7e234.zip	95,056,842
		4.2 beta 2	15S5090c		f49f1e0b158faff7c0e15a66fc436f415be0b87b.zip	81,948,888
		4.2 beta 3	15S5100a		db83c212c7b4c20692d1cd17c637a7eccf79a6d6.zip	69,883,741
		4.2 beta 4	15S5102b		7c2f29d231d6f39d5903ae3e7177de52fbe35475.zip	69,853,376
		4.2.2 beta	15S5530d		56de88a444dc4c2061845c83bb697a1c573ffaab.zip	55,951,131
		4.2.2 beta 2	15S5534a		189d816afc004fb8817a7e242e86c5766b577a7f.zip	54,177,506
		4.2.2 beta 3	15S5536a		162fdf45992fc803d92804dce3d4e8484f0d93a7.zip	52,847,302
		4.2.2 beta 4	15S5540a		97b51383f1084199480d44382238840fb8ba2e51.zip	51,637,249

Notes

^ ^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. 15S600b was listed as 15S6600b.) 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. 15S600b was listed as 15S6600b.) The listings on this page use the build number displayed on the device.

[1]