Apple Watch Series 3 (GPS, 38mm) – Silver Aluminium Case with White Sport Band
| Case Size | 38mm, 42mm | 40mm, 44mm |
| Display Area | 563 sq mm or 740 sq mm display area | 759 sq mm or 977 sq mm display area |
| Case Thickness | 11.4mm | 10.7mm |
| Processor | Dual-core S3 processor | 64-bit dual-core S4 processor; Up to 2x faster than S3 processor |
| Electrical Heart Sensor | Electrical heart sensor (ECG app); ECG app coming later this year | |
| Optical Heart Sensor | Optical heart sensor | Second-generation optical heart sensor |
| Fall Detection |  |
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| Digital Crown | Digital Crown | Digital Crown with haptic feedback |
