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Amazon.com: Amazfit GTR 4 Smart Watch for Men Android iPhone, Dual-Band GPS, Alexa Built-in, Bluetooth Calls, 150+ Sports Modes, 14-Day Battery Life, Heart Rate Blood Oxygen Monitor, 1.43”AMOLED Display,Black : Electronics
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Amazfit GTR 4 and GTS 4 go official with AMOLED screens, fall detection, and Bluetooth calling - GSMArena.com news
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