The Xiaomi Mi Watch Color Sports Edition has two weeks of battery life and a SpO2 sensor for ~US$105 - NotebookCheck.net News
Xiaomi MI Watch Color Sports Heart Rate GPS SpO2 Blood Oxygen AMOLED Smartwatch | eBay
What does the pulse oximeter measure on a smartwatch | Blackview Blog
Amazon.com: Xiaomi Mi Smart Band 6 - 1.56'' AMOLED Touch Screen, SPO2, Sleep Breathing Tracking, 5ATM Water Resistant, 14 Days Battery Life, 30 Sports Mode, Fitness, Steps, Sleep, Heart Rate Monitor [Official UK] : Electronics
Xiaomi launches Watch Color 2 smartwatch with SpO2 tracking in China - Times of India
New Xiaomi Watch S1 Active, AMOLED 1.43 Heart, SpO2, GPS, Bluetooth Phone Calls | eBay
Xiaomi Mi Band 8 Fitness Tracker,Smart Watch with 1.62'' AMOLED Screen ,120 Sports Modes, SpO2 Monitor ,Professional Sports Analysis Smart Bracelet - Walmart.com
Amazon.com: Xiaomi Redmi Watch 2 Lites, más de 100 modos de fitness, pantalla táctil colorida de 1.55 pulgadas, resistencia al agua de 5 ATM, medición SPO2, seguimiento de frecuencia cardíaca de 24