![Amazon.com: Amazfit GTR 3 Smart Watch for Men, 21-Day Battery Life, Alexa Built-in, 150 Sports Modes & GPS, 1.39”AMOLED Display, SpO2 Heart Rate Tracker, Water Resistant, Fitness Watch for Android iPhone, Grey : Amazon.com: Amazfit GTR 3 Smart Watch for Men, 21-Day Battery Life, Alexa Built-in, 150 Sports Modes & GPS, 1.39”AMOLED Display, SpO2 Heart Rate Tracker, Water Resistant, Fitness Watch for Android iPhone, Grey :](https://m.media-amazon.com/images/I/41fR5VzhziL._AC_.jpg)
Amazon.com: Amazfit GTR 3 Smart Watch for Men, 21-Day Battery Life, Alexa Built-in, 150 Sports Modes & GPS, 1.39”AMOLED Display, SpO2 Heart Rate Tracker, Water Resistant, Fitness Watch for Android iPhone, Grey :
![Amazon.com: Amazfit GTR 3 Pro Smart Watch for Men,12-Day Battery Life, Alexa Built-in, Bluetooth Call & Text, GPS & 150 Sports Modes, 1.45”AMOLED Display, Fitness Watch with SpO2 Heart Rate Tracker, Brown : Amazon.com: Amazfit GTR 3 Pro Smart Watch for Men,12-Day Battery Life, Alexa Built-in, Bluetooth Call & Text, GPS & 150 Sports Modes, 1.45”AMOLED Display, Fitness Watch with SpO2 Heart Rate Tracker, Brown :](https://m.media-amazon.com/images/I/311tXebNRQL._AC_.jpg)
Amazon.com: Amazfit GTR 3 Pro Smart Watch for Men,12-Day Battery Life, Alexa Built-in, Bluetooth Call & Text, GPS & 150 Sports Modes, 1.45”AMOLED Display, Fitness Watch with SpO2 Heart Rate Tracker, Brown :
![Amazfit GTR 4 Blood Oxygen Accuracy Test 🩸 | How Accurate Is SpO2 Sensor? 🤔 @AmazfitGlobal - YouTube Amazfit GTR 4 Blood Oxygen Accuracy Test 🩸 | How Accurate Is SpO2 Sensor? 🤔 @AmazfitGlobal - YouTube](https://i.ytimg.com/vi/LT_Ze14jPWg/maxresdefault.jpg)
Amazfit GTR 4 Blood Oxygen Accuracy Test 🩸 | How Accurate Is SpO2 Sensor? 🤔 @AmazfitGlobal - YouTube
![Amazon.com: Amazfit GTR 3 Pro Smart Watch for Men,12-Day Battery Life, Alexa Built-in, Bluetooth Call & Text, GPS & 150 Sports Modes, 1.45”AMOLED Display, Fitness Watch with SpO2 Heart Rate Tracker, Brown : Amazon.com: Amazfit GTR 3 Pro Smart Watch for Men,12-Day Battery Life, Alexa Built-in, Bluetooth Call & Text, GPS & 150 Sports Modes, 1.45”AMOLED Display, Fitness Watch with SpO2 Heart Rate Tracker, Brown :](https://m.media-amazon.com/images/I/71dopaRqA4L.jpg)
Amazon.com: Amazfit GTR 3 Pro Smart Watch for Men,12-Day Battery Life, Alexa Built-in, Bluetooth Call & Text, GPS & 150 Sports Modes, 1.45”AMOLED Display, Fitness Watch with SpO2 Heart Rate Tracker, Brown :
![Amazfit GTR 2e and Amazfit GTS 2e smartwatches officially launched in the US: Blood-oxygen saturation measurement and up to 45 days of battery life for US$139.99 - NotebookCheck.net News Amazfit GTR 2e and Amazfit GTS 2e smartwatches officially launched in the US: Blood-oxygen saturation measurement and up to 45 days of battery life for US$139.99 - NotebookCheck.net News](https://www.notebookcheck.net/fileadmin/Notebooks/News/_nc3/gtr_gts_2e.jpg)
Amazfit GTR 2e and Amazfit GTS 2e smartwatches officially launched in the US: Blood-oxygen saturation measurement and up to 45 days of battery life for US$139.99 - NotebookCheck.net News
![Amazfit GTR 2 Smartwatch: 14-Day Battery Life - 90 Sports Modes - Heart Rate, Sleep, Stress, SpO2 Monitor, - Bluetooth Phone Calls - Water-Resistant - 3GB Music Storage, Sport Edition - Newegg.com Amazfit GTR 2 Smartwatch: 14-Day Battery Life - 90 Sports Modes - Heart Rate, Sleep, Stress, SpO2 Monitor, - Bluetooth Phone Calls - Water-Resistant - 3GB Music Storage, Sport Edition - Newegg.com](https://c1.neweggimages.com/ProductImage/ANRYS201124NNoUg.jpg)