The Amazfit GTR is technically not a smartwatch. It lacks a proper OS and can't really run additional apps. You are limited to the features you get out of
Amazfit GTR 4 Smartwatch review - Chic all-rounder - NotebookCheck
Amazfit GTR 4 review: A stylish watch with good battery life
Amazfit GTR 3 Pro review - the most powerful Amazfit smartwatch to
Amazfit GTR 2 review
Amazfit GTR Mini Review: Small Frame, Big Battery - Tech Advisor
Amazfit GTR Mini review: Big battery life and excellent fitness
Amazfit GTR 4 Smartwatch review - Chic all-rounder - NotebookCheck
Amazfit GTR Mini Review
Amazfit GTR 2 review: Perfect amalgamation of fitness and style