![Apple Watch teardown reveals pulse oximeter, suggesting future measurement of blood oxygen - 9to5Mac Apple Watch teardown reveals pulse oximeter, suggesting future measurement of blood oxygen - 9to5Mac](https://9to5mac.com/wp-content/uploads/sites/6/2015/04/pulse-oximeter.jpeg)
Apple Watch teardown reveals pulse oximeter, suggesting future measurement of blood oxygen - 9to5Mac
![Lawsuit alleges Apple Watch's blood oxygen sensor 'racially biased'; accuracy problems reported industry-wide - ABC News Lawsuit alleges Apple Watch's blood oxygen sensor 'racially biased'; accuracy problems reported industry-wide - ABC News](https://s.abcnews.com/images/US/oximeter-1-gty-er-221229_1672337552625_hpMain_16x9_992.jpg)
Lawsuit alleges Apple Watch's blood oxygen sensor 'racially biased'; accuracy problems reported industry-wide - ABC News
![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 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](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/61BBqMQaYmL.jpg)
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
![Amazon.com: iHealth AIR Wireless Fingertip Pulse Oximeter for Blood Oxygen Saturation, Perfusion Index, and Pulse Rate. With Smartphone App for Plethysmograph and Perfusion Index. Rechargeable Built-in Battery : Health & Household Amazon.com: iHealth AIR Wireless Fingertip Pulse Oximeter for Blood Oxygen Saturation, Perfusion Index, and Pulse Rate. With Smartphone App for Plethysmograph and Perfusion Index. Rechargeable Built-in Battery : Health & Household](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/61CrUJqYz9L.jpg)