M-Rex4 Men Rugged GPS Smart Watch, 5ATM Waterproof Bluetooth Call Fitness Tracker Heart Rate Sleep Monitor，black

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M-Rex4 Rugged Military Smart Watch for Men, 1.43" HD Touch Screen Bluetooth Call Fitness Watch, 5ATM Waterproof Heart Rate SpO2 Sleep Monitor, Outdoor Sports Smartwatch Compatible with Android iOS Durable Military-grade Rugged Design Clear HD Screen & Smart Bluetooth Call 1.43-inch high-definition full touch screen delivers ultra-clear display and smooth operation. Built-in speaker and microphone support hands-free Bluetooth calling. Receive real-time SMS, social media and app notifications directly on wrist, never miss important messages. 24H Full-round Health Monitoring Equipped with high-precision sensor to track real-time heart rate, blood oxygen and stress data automatically. It monitors whole-night sleep status to analyze deep sleep, light sleep and awake period. Also records daily steps, calories burned and exercise distance to guard your physical health all day. 100+ Sports Modes & 5ATM Superior Waterproof Supports 100+ professional sports modes to meet various outdoor and indoor workout demands. Upgraded 5ATM waterproof performance supports swimming, diving, rain and hand washing, far better than ordinary 3ATM watches, suitable for all-day sports and outdoor activities. Long Battery & Universal Compatibility Large capacity battery provides 7-9 days normal daily usage and 35 days ultra-long standby time. Adopts stable Bluetooth 5.3 connection, widely compatible with iOS 9.0+ and Android 5.0+ smartphones. Also supports custom watch faces and one-click find phone function. Returns, Refunds and Replacements Delivery Timeframe Delivery is approximately 5-10 business days (excluding weekends and public holidays).