Amazon.com: Amazfit GTR 2 Smart Watch for Android iPhone, with Alexa GPS, Fitness Sports Watch for Men, Bluetooth Call, 14-Day Battery Life, 90 Sports Modes, Blood Oxygen Heart Rate Tracking, Waterproof, Sports :
Amazfit GTR 2
Amazfit GTR 2 in for review - GSMArena.com news
Huami launches the Amazfit GTR 2 smartwatch: Two editions with NFC, up to 38-day battery life, and blood oxygen detection from 999 yuan (US$147) - GadgetNutz