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Apple Watch Series 7

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The Apple Watch Series 7 now comes in 41mm and 45mm sizes. It works well as both a watch and a fitness tracker.

The Blood Oxygen app allows you to measure the oxygen level in your blood on the fly, right from your wrist.

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People with small wrists/hands may find the Watch 7 too large. The Apple Watch Series 7 can produce an ECG similar to a single-lead electrocardiogram.

The ECG app can tell you whether your heart rhythm is atrial fibrillation or sinus rhythm, which means your heart is beating normally.

You can enable notifications from your Apple Watch’s Heart Rate app to alert you to high or low heartbeat rates.

The Apple Watch Series 7 is the most robust Apple Watch yet. It has a larger screen (over 50 percent more screen area than Series 3).

Users also benefit from an all-day 18-hour battery life, which is now 33 percent faster.

The innovative tools for health and wellness are what make this Apple wristwear so appealing.