![Amazon.com: Garmin Forerunner 945, Premium GPS Running/Triathlon Smartwatch with Music International Version, Black : Electronics Amazon.com: Garmin Forerunner 945, Premium GPS Running/Triathlon Smartwatch with Music International Version, Black : Electronics](https://m.media-amazon.com/images/I/41RjegxWrKL._AC_SY355_.jpg)
Amazon.com: Garmin Forerunner 945, Premium GPS Running/Triathlon Smartwatch with Music International Version, Black : Electronics
![Despite the SpO2 / pulse ox being not for medical use, I'm still disappointed in its accuracy. The pulse oximeter on my 245 is consistently out by 7-15%. Pretty much useless, even as a gimmick. (This photo was from a reading whilst sitting dead still, relaxed ... Despite the SpO2 / pulse ox being not for medical use, I'm still disappointed in its accuracy. The pulse oximeter on my 245 is consistently out by 7-15%. Pretty much useless, even as a gimmick. (This photo was from a reading whilst sitting dead still, relaxed ...](https://preview.redd.it/d7n5yy3i6zz51.jpg?auto=webp&s=7599d5640ff2ff946a674916f605e13b18ae9650)
Despite the SpO2 / pulse ox being not for medical use, I'm still disappointed in its accuracy. The pulse oximeter on my 245 is consistently out by 7-15%. Pretty much useless, even as a gimmick. (This photo was from a reading whilst sitting dead still, relaxed ...
![Amazon.com: Garmin Forerunner 945 Premium GPS Running/Triathlon Smartwatch with Included Wearable4U Earbuds with Charging Case Bundle (Black +Earbuds) : Electronics Amazon.com: Garmin Forerunner 945 Premium GPS Running/Triathlon Smartwatch with Included Wearable4U Earbuds with Charging Case Bundle (Black +Earbuds) : Electronics](https://m.media-amazon.com/images/I/61uOw9gj9KL._AC_SL1500_.jpg)
Amazon.com: Garmin Forerunner 945 Premium GPS Running/Triathlon Smartwatch with Included Wearable4U Earbuds with Charging Case Bundle (Black +Earbuds) : Electronics
![Why Pulse Oximeter sp02 works at night only from 00 - 04 h - Forerunner 945 - Running/Multisport - Garmin Forums Why Pulse Oximeter sp02 works at night only from 00 - 04 h - Forerunner 945 - Running/Multisport - Garmin Forums](https://forums.garmin.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/400/Screenshot_5F00_20190608_2D00_075731.png)
Why Pulse Oximeter sp02 works at night only from 00 - 04 h - Forerunner 945 - Running/Multisport - Garmin Forums
![When I saw this, I thought it's fake but then checked with my oximeter and it showed 99% good job Garmin! : r/Garmin When I saw this, I thought it's fake but then checked with my oximeter and it showed 99% good job Garmin! : r/Garmin](https://preview.redd.it/9b812wvh8ls51.jpg?auto=webp&s=f3787e7f76995eee0bccdef19dd9443b62ff0c43)