There are several models of Apple Watch, each with different features and specifications:
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Apple Watch Series 1: This is the original Apple Watch model and is now discontinued. It features a dual-core processor and 8GB of storage.
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Apple Watch Series 2: This model features improved water resistance and GPS capabilities, as well as a brighter display. It was also discontinued.
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Apple Watch Series 3: This model has a faster processor and cellular connectivity options, allowing you to make calls and send messages without needing your iPhone.
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Apple Watch Series 4: This model features a larger display and improved heart rate monitoring capabilities.
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Apple Watch Series 5: This model has an always-on display, a built-in compass, and improved storage capacity.
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Apple Watch SE: This is a more affordable alternative to the Series 5 and features many of its key features, such as heart rate monitoring and fall detection, but with a slower processor and limited storage.
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Apple Watch Series 6: This model has a faster processor, improved battery life, and a blood oxygen sensor.
In general, newer models have more advanced features and improved performance, but some older models may still meet your needs and can be purchased at a lower price.