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HealthTree Bluetooth Pulse Oximeter Fingertip, Blood Oxygen Saturation Monitor and Heart Rate Monitor with Free APP, for Apple and Android, 2 X AAA Batteries, Lanyard gray
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Researchers find the blood oxygen sensor on Apple Watch to be as reliable as a medical grade device | Technology & Science News, Times Now
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Bluetooth Pulse Oximeter Finger Monitor by Wellue,Fingertip Blood Oxygen Saturation Monitor for Sports Home Wellness,Free App for iOS and Android,FS20F Black - Walmart.com
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