- The Apple Series 4 smartwatch features a powerful S4 64-bit dual-core processor that delivers fast and efficient performance on a consistent basis.
- The watchOS 5 operating system effectively handles all software and hardware of this Apple smartwatch.
- The W3 wireless chip helps improve the speed of Wi-Fi.
- With optical heart sensor, this Apple smartwatch keeps an exact track of your heartbeat rate.
- The electrical heart sensor enables you to take an ECG with the assistance of an ECG application.
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