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
Amazfit GTR 4 and GTS 4 go official with AMOLED screens, fall detection, and Bluetooth calling - news
Amazfit GTS 4 Smartwatch review - Flawed beauty - Reviews
Amazfit GTR 4 and GTS 4 with AMOLED Display, Bluetooth Calling Support Launched; India Launch Confirmed - MySmartPrice
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, GTS 4 Review
Amazfit GTR 4 and GTS 4 images give us a good look at the new fashion watches - Wareable
Amazfit GTR 4 and GTS 4 go official with AMOLED screens, fall detection, and Bluetooth calling - news
Amazfit GTR 4 Smart Watch with GPS, Sleep Quality Monitoring, Step Tracking, Heart Rate & SpO2 Sensor, Alexa Built-In, Bluetooth Calls & Text, 14-Day Battery Life, AI Fitness App & Sports
Amazfit Gtr 4 : Target
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