Amazfit GTS Fitness Smartwatch with Heart Rate Monitor, 14-Day Battery
Amazon.com: Amazfit GTS 2 Mini Smart Watch for Men Android iPhone, Alexa Built-in, 14-Day Battery Life, Fitness Tracker with GPS & 70+Sports Modes, Blood Oxygen Heart Rate Monitor, 5 ATM Water Resistant-Green :
Amazfit GTS Fitness Smartwatch
Amazfit GTS 4
Amazfit GTS 4 Mini Smart Watch: For Women & Men - GPS - Fitness Tracker with 120+ Sport Modes - 15-Day Battery Life - Heart Rate Blood Oxygen Monitor - Android Phone & iPhone Compatible, Black - Walmart.com
Amazfit GTS review. Worth it over Amazfit Bip? In-depth | Test heart rate & GPS running & cycling - YouTube