Apple Watch Series 4 (GPS, 40mm)

Compared with the Apple Watch Series 3 (GPS, 38mm), this model has a larger 40mm case and a display over 30% larger, with rounded corners and thinner borders. It added an electrical heart sensor in the Digital Crown for ECG readings, fall detection and haptic feedback in the Digital Crown. The 64-bit S4 chip is up to twice as fast. The GPS model came in aluminum only.

Model number

A1977

Model identifier

Watch4,1

Released

2018

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