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Amazfit GTR 3 Smart Watch: Android & iOS - GPS Fitness Tracker with 150 Sports Modes - 21-Day Battery Life - 1.39” AMOLED Display - Blood Oxygen Heart Rate Tracking - Waterproof, Thunder Black - Walmart.com
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Amazon.com: Amazfit GTR Mini Smart Watch for Men,14-Day Battery Life, Sports Watch with GPS, 5 Satellite Positioning Systems, Fitness Health Tracker with Heart Rate, SPO₂ Monitoring,5 ATM Water Resistance, Black : Electronics
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