They are similar smartwatches with different designs, screens, and batteries. The Amazfit GTR 4 and GTS 4 we leaked last month with their specs and images
Amazfit GTR 4 review: the king of budget smartwatches - The Verge
Smart Watch for Men Women Fitness: (Make/Answer Call) Bluetooth Smartwatch for Android iOS Phone Waterproof Sport Running Digital Watches Blood Pressure Heart Rate Monitor Sleep Tracker Step Counter : Electronics
Amazfit GTR 4 and GTS 4 go official with AMOLED screens, fall detection, and Bluetooth calling - news
Amazfit GTR 4 hands-on review: An industry-first GPS system for $199
Amazfit GTR 4 Smart Watch for Men Android iPhone, Dual-Band GPS Alexa, Bluetooth Call, 150+ Sports Modes, 14-Day Battery Life, Heart Rate Blood Oxygen Monitor, 1.43”AMOLED Display,Black (Renewed) : Cell Phones
Amazfit GTR 4 & GTS 4 Review: A perfect $200 Smartwatch!
Amazfit GTR 4 Smart Watch for Men Android iPhone, Dual-Band GPS Alexa, Bluetooth Call, 150+ Sports Modes, 14-Day Battery Life, Heart Rate Blood Oxygen Monitor, 1.43”AMOLED Display,Black (Renewed) : Cell Phones
Amazfit GTR 4 and GTS 4 With Breathtaking Tech
Amazfit GTR 4 & GTS 4 Review: A perfect $200 Smartwatch!
Amazfit GTR 4 and GTS 4 With Breathtaking Tech
Amazfit GTR 4 review: A stylish watch with good battery life
GTS 2 mini - Amazfit US Official Online Store