Series 4 -

Alerts for low heart rate, high heart rate, and irregular rhythms (AFib). 🚀 Re-engineered Performance

40mm and 44mm sizes replaced the original 38/42mm. Series 4

A 64-bit dual-core processor up to twice as fast as Series 3. Alerts for low heart rate, high heart rate,

Every model featured a black ceramic and sapphire crystal back for better cellular reception. 📉 The Legacy Alerts for low heart rate

50% louder than previous models for clearer calls and Siri.

The Apple Watch Series 4, released in 2018, remains a landmark in wearable history. It was the first major redesign of the device, shifting it from a "luxury gadget" to a "critical health companion." ⌚ The Modern Face of Apple Watch

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Alerts for low heart rate, high heart rate, and irregular rhythms (AFib). 🚀 Re-engineered Performance

40mm and 44mm sizes replaced the original 38/42mm.

A 64-bit dual-core processor up to twice as fast as Series 3.

Every model featured a black ceramic and sapphire crystal back for better cellular reception. 📉 The Legacy

50% louder than previous models for clearer calls and Siri.

The Apple Watch Series 4, released in 2018, remains a landmark in wearable history. It was the first major redesign of the device, shifting it from a "luxury gadget" to a "critical health companion." ⌚ The Modern Face of Apple Watch

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