Huawei Watch GT 2 vs GT 2e & SpO2 Monitor! - YouTube
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
The Watch GT 2 does support blood oxygen saturation monitoring after all, but Huawei left its Sp02 sensor disabled for six months - NotebookCheck.net News