Amazon.com: Amazfit GTR 2 Smart Watch for Men Android iPhone, 14-Day Battery Life, Alexa Built-in, Fitness Watch with GPS, Bluetooth Call, 90 Sports Modes, Blood Oxygen Heart Rate Tracker, 5 ATM Water
Amazfit GTR 4 Smart Watch for Men Android iPhone, Dual-Band GPS, Alexa Built-in, Bluetooth
Amazon.com: Amazfit GTR 2e Smart Watch, 24 Day Battery Life, Alexa Built-in, Fitness Tracker with GPS & 90 Sports Modes, Blood Oxygen Heart Rate Tracker, 5 ATM Water Resistant, for Men Women
Amazfit GTR 3 Pro Smart Watch for Men,12-Day Battery Life, Alexa Built-in, Bluetooth Call & Text, GPS & 150 Sports Modes, 1.45”AMOLED Display, Fitness Watch with SpO2 Heart Rate Tracker, Black