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Amazon.com: Amazfit GTR 3 Smart Watch for Android Phone iPhone with Alexa, GPS Fitness Tracker with 150 Sports Modes, 21-Day Battery Life, 1.39” AMOLED Display, Blood Oxygen Heart Rate Tracking, Waterproof, Grey : Electronics
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Huami launches the Amazfit GTR 2 smartwatch: Two editions with NFC, up to 38-day battery life, and blood oxygen detection from 999 yuan (US$147) - NotebookCheck.net News
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Huami Amazfit GTR (47 mm) Review: Stylish smartwatch with great battery life- Tech Reviews, Firstpost
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