Watch Series 3 42 mm

This A1891 Apple Watch Series 3 (GPS+Cellular, 42 mm) is the international version, supporting LTE/UMTS bands in Australia, France, Germany, Japan, Switzerland, and the UK. While visually similar to earlier watches, Series 3 models contain a faster processor, GPS, GLONASS, a barometric altimeter, and Siri. This cellular model can connect to the internet independently, a first for the Apple Watch line, and is identified by a red dot on the Digital Crown. The 42 mm model has a 312x390 OLED display, protected by Ion-X glass on aluminum cases and sapphire crystal on stainless steel cases. Battery life is estimated at up to 18 hours. Initially offered in eleven configurations, the lineup was simplified on March 21, 2018, and again on September 12, 2018, with a price cut. It was discontinued on September 15, 2020.

The Series 3 cellular capability represented a watershed moment for smartwatch independence, with reviewers acknowledging it as the first Apple Watch that could truly function autonomously from an iPhone. Users found the cellular connectivity most valuable during workouts and brief outings, though many discovered they still preferred having their phones for tasks like extensive scrolling or photography. The red dot identifier on the Digital Crown became a polarizing design element that spawned an entire accessory industry dedicated to concealing it, reflecting user ambivalence about displaying their cellular upgrade status.