Photo 1 of Amazfit T-Rex Pro Smartwatch Fitness Watch with Built-in GPS, Military Standard Certified, 18 Day Battery Life, SpO2, Heart Rate Monitor, Many Sports Modes, 10 ATM Waterproof, Music Control, Black SEALED AND UNOPENED

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Photo 1 of Amazfit T-Rex Pro Smartwatch Fitness Watch with Built-in GPS, Military Standard Certified, 18 Day Battery Life, SpO2, Heart Rate Monitor, Many Sports Modes, 10 ATM Waterproof, Music Control, Black SEALED AND UNOPENED Photo 2 of Amazfit T-Rex Pro Smartwatch Fitness Watch with Built-in GPS, Military Standard Certified, 18 Day Battery Life, SpO2, Heart Rate Monitor, Many Sports Modes, 10 ATM Waterproof, Music Control, Black SEALED AND UNOPENED