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Amazon.com: Amazfit Bip U Smart Watch Fitness Tracker for Men Women with 60+ Sports Modes, 9-Day Battery Life, Blood Oxygen Breathing Heart Rate Sleep Monitor, 5 ATM Waterproof, for iPhone Android Phone (
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Amazon.com: Amazfit Bip U Smart Watch for Women, Health & Fitness Tracker with 60+ Sports Modes, 9-Day Battery Life, Blood Oxygen Heart Rate Sleep Monitor, 5 ATM Waterproof, for iPhone Android Phone (
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