COROS - It's #techtuesday, so let's talk about the COROS VERTIX Altitude Performance Index. First the watch takes an SpO2 measurement via a wrist Pulse Oximeter which measures the percentage of Hemoglobin
![Garmin debuts the fēnix 5 Plus, adds maps, music, Garmin Pay and wrist-based Pulse Ox to its premium multisport GPS watch series - Garmin Blog Garmin debuts the fēnix 5 Plus, adds maps, music, Garmin Pay and wrist-based Pulse Ox to its premium multisport GPS watch series - Garmin Blog](https://www.garmin.com/en-GB/blog/wp-content/uploads/2018/06/Group-Shot-1024x724.png)
Garmin debuts the fēnix 5 Plus, adds maps, music, Garmin Pay and wrist-based Pulse Ox to its premium multisport GPS watch series - Garmin Blog
![Amazon.com: Garmin fenix 5X Plus, Ultimate Multisport GPS Smartwatch, Features Color Topo Maps and Pulse Ox, Heart Rate Monitoring, Music and Contactless Payment, Gray with Titanium Band : Electronics Amazon.com: Garmin fenix 5X Plus, Ultimate Multisport GPS Smartwatch, Features Color Topo Maps and Pulse Ox, Heart Rate Monitoring, Music and Contactless Payment, Gray with Titanium Band : Electronics](https://m.media-amazon.com/images/I/51R8kkC-LmL._AC_UF350,350_QL80_.jpg)
Amazon.com: Garmin fenix 5X Plus, Ultimate Multisport GPS Smartwatch, Features Color Topo Maps and Pulse Ox, Heart Rate Monitoring, Music and Contactless Payment, Gray with Titanium Band : Electronics
![Amazon.com: Garmin fenix 5X Plus, Ultimate Multisport GPS Smartwatch, Features Color Topo Maps and Pulse Ox, Heart Rate Monitoring, Music and Contactless Payment, Gray with Titanium Band : Electronics Amazon.com: Garmin fenix 5X Plus, Ultimate Multisport GPS Smartwatch, Features Color Topo Maps and Pulse Ox, Heart Rate Monitoring, Music and Contactless Payment, Gray with Titanium Band : Electronics](https://m.media-amazon.com/images/I/61MML9FJ34L._AC_UF350,350_QL80_.jpg)