The Withings ScanWatch 2 and ScanWatch Light are two smartwatches designed for health tracking. The ScanWatch 2 is a more advanced model with features such as atrial fibrillation detection and overnight heart rate variability tracking. It has a 40mm case size and a color OLED display. The ScanWatch Light, on the other hand, is a more affordable and simplified version with a 37mm case size and a grayscale OLED display. It lacks some of the advanced health tracking features found in the ScanWatch 2. The app can be cumbersome, and the display is not ideal for notifications. However, the ScanWatch Light is a good choice for those who want a smartwatch that looks like a traditional timepiece.
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