Does Amazfit GTR 4 Have ECG?
Unfortunately, no. The Amazfit GTR 4 doesn’t have an ECG function, except for the limited edition model. But don’t worry, it still offers a ton of great features like multi-band GPS, a beautiful OLED display, turn-by-turn navigation, detailed sleep tracking, 24/7 heart rate monitoring, blood oxygen tracking, stress tracking, and the ability to set sleep schedules.