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
HUAWEI WATCH GT 2 Pro Smartwatch Support Calls, SpO2 – Smartkoshk Stores
HUAWEI WATCH GT2 SPO2 Function - YouTube
Huawei: Huawei Watch GT2 gets latest SpO2 feature to monitor blood oxygen level - Times of India
HUAWEI WATCH GT 2 Pro – HUAWEI Global
HUAWEI Watch GT 2 Smart Watch (AMOLED Color 46mm, SpO2 Monitoring, Heart Rate Measurement, Music Playback and Bluetooth Telephony, 5ATM Waterproof, GPS) Sunset Orange: Amazon.co.uk: Electronics & Photo