This is what the Amazfit GTR 2 and GTS 2 look like; SpO2 sensor confirmed - Gizmochina
Amazfit GTR 2 Smartwatch with SpO2 launching in India on 17 December-Tech News , Firstpost
Amazfit GTR 2 review - bezel-less design, SpO2 sensor, Make calls from watch and more! - YouTube
Amazfit GTR 2 Smartwatch 35mm Obsidian Black W1952OV2Q - Best Buy
Amazon.com: Amazfit GTR 2e Smart Watch, 24 Day Battery Life, Alexa Built-in, Fitness Tracker with GPS & 90 Sports Modes, Blood Oxygen Heart Rate Tracker, 5 ATM Water Resistant, for Men Women
Huami releases the Amazfit GTS 2e and GTR 2e with AMOLED displays, improved battery life and SpO2 sensors - NotebookCheck.net News
Dasher] SpO2 Blood Oxygen Monitoring on Amazfit GTR 2 | U TAU TAK? LOW OXYGEN LEVEL can be an EARLY WARNING SIGN that medical care is needed😱 🛒 http://bit.ly/DasherStore 📌Don't miss any