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Amazon.com: Fingertip Pulse Oximeter Bluetooth Blood Oxygen Saturation Monitor and Pulse Rate Monitor for Apple and Android, with OLED Screen 2 X AAA Batteries and Lanyard : Health & Household
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Apple will disable pulse oximeter on new Series 9 and Ultra 2 watches if court rules against it - PhoneArena
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Amazon.com: iHealth AIR Rechargeable Fingertip Pulse Oximeter, Blood Oxygen Saturation Monitor with App, SpO2, Pulse Rate, Plethysmograph, and Perfusion Index : Health & Household
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Comparison of SpO2 and heart rate values on Apple Watch and conventional commercial oximeters devices in patients with lung disease | Scientific Reports
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Lawsuit alleges Apple Watch's blood oxygen sensor 'racially biased'; accuracy problems reported industry-wide - ABC News
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