Amazfit GTR 4 Watch

【Strong & Precise GPS Tracking and Navigation】The Amazfit GTR 4 uses industry-leading dual-band circularly-polarized GPS antenna technology - similar to that used in the aircraft and automotive fields - so you can enjoy stronger positioning that's 99% as accurate as top handheld GPS locators. And you can even Import a route file to the watch from the Zepp App and navigate your way along it in real-time... Suported Application:Music Player,Voice Control,Fitness Tracker,Phone,Social Media. Connectivity technology:Bluetooth 5.0,Wireless. Wireless comm standard:Bluetooth