< OTA Updates | Apple Watch
Apple Watch (1st generation)[edit source]
watchOS "1.0" and "1.0.1" are marketing versions; their true OS versions were 8.2 and 8.2.1, respectively. Since the OS version and marketing version now match as of watchOS 2.0, a fake OS version of 9.0 is specified for devices on watchOS 1.0 or 1.0.1 (watchOS 9.0 became reality in 2022).
Watch1,1[edit source]
| Version | Build | Prerequisite Version | Prerequisite Build | Compatibility Version | Release Date | OTA Download URL | File Size |
|---|---|---|---|---|---|---|---|
| 2.1 | 13S661 | 8.2 | 12S507 | 5 | 8 December 2015 | ba52c2b25e94127bc41562af1a545522af9677c3.zip | 556,810,035 |
| 8.2.1 | 12S632 | 5 | 254484fe33294fbc9b359cfdb3d4e425c33edc33.zip | 550,558,222 | |||
| 2.0 | 13S344 | 5 | 1f0f8ececb8eb6a67c8e8fe5a4be7f813103d579.zip | 84,812,161 | |||
| 2.0.1 | 13S428 | 5 | dd42b504aa8bf988d7a7c7e2aa878e877391b0cf.zip | 59,810,320 | |||
| 2.0 beta | 13S5254w | 5 | 1818b54e396fe38d2a0a295348b0c23590bda46f.zip | 424,163,269 | |||
| 2.0 beta 2 | 13S5255c | 5 | 62128fd0455a1ce29cdfff22b984ac70f2b6e9bc.zip | 424,136,063 | |||
| 2.0 beta 3 | 13S5255d | 5 | a44c8975dd25d749bb30540d48170fd1f80f6825.zip | 424,141,314 | |||
| 2.0 beta 4 | 13S5293f | 5 | c396d9c4a967ce57dae685ca0c193da2a8236bc7.zip | 324,808,318 | |||
| 2.0 beta 5 | 13S5305d | 5 | b1cc50192f4b0943b15a9988dff8622f1e0d9350.zip | 282,482,897 | |||
| 2.0 beta 6 | 13S5325c | 5 | eec852023102ee52679b18a8a853116961a21ad4.zip | 216,402,234 |
Watch1,2[edit source]
| Version | Build | Prerequisite Version | Prerequisite Build | Compatibility Version | Release Date | OTA Download URL | File Size |
|---|---|---|---|---|---|---|---|
| 2.1 | 13S661 | 8.2 | 12S507 | ? | 8 December 2015 | 9abab0ed1d522f72672faf7452ab2274a65fdb7b.zip | 554,769,394 |
| 8.2.1 | 12S632 | 3977e84b9c0cf3d212fab658f99d154022544881.zip | 548,505,580 | ||||
| 2.0 | 13S344 | ce240d60b92d6f02c09dceb6a820a9d355d5447a.zip | 84,839,855 | ||||
| 2.0.1 | 13S428 | df046ad4a431b1ce22579cca4de228a3e3c24847.zip | 59,863,857 |