Smart Watch QX9. Its 1.96 - inch high - definition retina display, with a resolution of 240*282 pixels, offers an exquisite and clear picture quality with gorgeous colors, ensuring a top - notch visual experience.Equipped with a low - power dynamic heart rate chip, it enables quick and accurate 24 - hour continuous heart rate monitoring. You can check APP records at any time to stay updated on your heart health. The built - in smart pulse oximeter measures blood oxygen saturation in real - time, a crucial indicator of respiratory health.
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