Went from 13 hours to this after a month of purchase! All the features are on like AOD, RTW, Continuous HR, Auto Workout Detection, Sleep Tracking with SPO2, Hey Google Detection etc...
Galaxy Watch 3 review: A stunning smartwatch with SpO2 tracking and ECG - CNET
Amazon.com: HUAWEI Watch GT 3 42 mm Smartwatch, Durable Battery Life, All-Day SpO2 Monitoring, Personal AI Running Coach, Accurate Heart Rate Monitoring, 100+ Workout Modes, Bluetooth Calling, Black : Electronics
Samsung finally enables blood pressure monitoring on the Galaxy Watch Active 2; functionality teased for the Galaxy Watch 3 too - NotebookCheck.net News
Global Version Samsung Galaxy Watch 4 Classic 46mm Bluetooth R890 1.4'' AMOLED Display NFC SpO2 Watch4
Pixel Feature Drop | SpO2 Tracking | mobile phone, blood oxygen saturation | Sweet dreams and deep breaths. 😴 Your #PixelWatch can now check your nighttime oxygen saturation (SpO2) and help you
Motorola Moto Watch 100 42mm Smartwatch with GPS SpO2 Heart Rate 5ATM NEW !! | eBay
Samsung finally enables blood pressure monitoring on the Galaxy Watch Active 2; functionality teased for the Galaxy Watch 3 too - NotebookCheck.net News
Active2 has red light, SpO2 capable : r/GalaxyWatch
Galaxy Watch 4/5 - How to Measure SpO2 (oxygen saturation) - YouTube
Outdoor GPS Smart Watch VS Trex T-Rex Pro Men Heart Rate SpO2 5ATM IP68 Waterproof Tactical Smartwatch for iPhone Samsung Xiaomi - AliExpress