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How Your Smartphone Camera Could Track Your Heart Rate
But it turns out more subtle color changes occur at rest as the heart pumps blood around the body. The ebb and flow of blood ...
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AT&T Samsung Galaxy S25 Ultra review: Refined lines and One UI 7 make it interesting
While there are some refined lines on the Galaxy S25 Ultra and One UI 7 is better than ever. You may want to wait to upgrade, unless you can get it on a killer AT&T deal.