Apple Watch Series 4 (40mm)
Unsigned OTA

watchOS 5.1 (16R5559d) OTA

Apple Watch Series 4 (40mm)

Other Signed OTA Updates
watchOS 5.3.10 Signed 16U711 watchOS 5.3.10 Signed 16U711 watchOS 5.3.10 Signed 16U711 watchOS 5.3.10 Signed 16U711 watchOS 5.3.10 Signed 16U711 watchOS 5.3.10 Signed 16U711 watchOS 5.3.10 Signed 16U711 watchOS 5.3.10 Signed 16U711 watchOS 5.3.10 Signed 16U711 watchOS 5.3.10 Signed 16U711 watchOS 5.3.10 Signed 16U711 watchOS 5.3.10 Signed 16U711 watchOS 5.3.10 Signed 16U711 watchOS 5.3.10 Signed 16U711 watchOS 5.3.10 Signed 16U711 watchOS 5.3.10 Signed 16U711 watchOS 5.3.10 Signed 16U711 watchOS 5.3.10 Signed 16U711 watchOS 6.3.1 Signed 17U224 watchOS 6.3.1 Signed 17U224 watchOS 6.3.1 Signed 17U224 watchOS 6.3.1 Signed 17U224 watchOS 6.3.1 Signed 17U224 watchOS 6.3.1 Signed 17U224 watchOS 6.3.1 Signed 17U224 watchOS 6.3.1 Signed 17U224 watchOS 6.3.1 Signed 17U224 watchOS 6.3.1 Signed 17U224 watchOS 6.3.1 Signed 17U224 watchOS 6.3.1 Signed 17U224 watchOS 6.3.1 Signed 17U224 watchOS 5.3.9 Signed 16U693 watchOS 5.3.9 Signed 16U693 watchOS 5.3.9 Signed 16U693 watchOS 5.3.9 Signed 16U693 watchOS 5.3.9 Signed 16U693 watchOS 5.3.9 Signed 16U693 watchOS 5.3.9 Signed 16U693 watchOS 5.3.9 Signed 16U693 watchOS 5.3.9 Signed 16U693 watchOS 5.3.9 Signed 16U693 watchOS 5.3.9 Signed 16U693 watchOS 5.3.9 Signed 16U693 watchOS 5.3.9 Signed 16U693 watchOS 5.3.9 Signed 16U693 watchOS 5.3.9 Signed 16U693 watchOS 5.3.9 Signed 16U693 watchOS 5.3.9 Signed 16U693
e98c88e2202495103cfee7652e3e8773fccc78cc.zip
Device
Apple Watch Series 4 (40mm)
Identifier
Watch4,1
OS
watchOS
Version
5.1
Build
16R5559d
Type
Release
Release Date
2018-09-18
Upload Date
2018-09-14
Size
1.32 GB
Status
Unsigned
⇓ Download OTA (1.32 GB)