Apple Watch Series 4

The Apple Watch Series 4 was first introduced at Apple's "Gather round" keynote on 12 September 2018. Internally, the Apple Watch Series 4 is referred to as N131sAP (Watch4,1 - 40mm), N131bAP (Watch4,2 - 44mm), N141sAP (Watch4,3 - 40mm Cellular) or N141bAP (Watch4,4 - 44mm Cellular).

Application Processor

The Apple Watch Series 4 uses the T8006 (S4) Processor. It also contains a GPS module, and on cellular models an LTE chip.

Specifications

Display: LTPO OLED Retina
Screen: Ion-X glass or sapphire crystal
Compatibility (GPS): iOS 12 or later running on an iPhone 5s or newer
Compatibility (GPS+LTE): iOS 12 or later running on an iPhone 6 or newer

Links

https://www.apple.com/apple-watch-series-4 (Archived)