Photo 1 of Amazfit T-Rex Pro Smart Watch with GPS, Outdoor Fitness Watch for Men, Military Standard Certified, 100+ Sports Modes, 10 ATM Waterproof, 18 Day Battery Life, Blood Oxygen Heart Rate Monitor, Black

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Photo 1 of Amazfit T-Rex Pro Smart Watch with GPS, Outdoor Fitness Watch for Men, Military Standard Certified, 100+ Sports Modes, 10 ATM Waterproof, 18 Day Battery Life, Blood Oxygen Heart Rate Monitor, Black Photo 2 of Amazfit T-Rex Pro Smart Watch with GPS, Outdoor Fitness Watch for Men, Military Standard Certified, 100+ Sports Modes, 10 ATM Waterproof, 18 Day Battery Life, Blood Oxygen Heart Rate Monitor, Black Photo 3 of Amazfit T-Rex Pro Smart Watch with GPS, Outdoor Fitness Watch for Men, Military Standard Certified, 100+ Sports Modes, 10 ATM Waterproof, 18 Day Battery Life, Blood Oxygen Heart Rate Monitor, Black Photo 4 of Amazfit T-Rex Pro Smart Watch with GPS, Outdoor Fitness Watch for Men, Military Standard Certified, 100+ Sports Modes, 10 ATM Waterproof, 18 Day Battery Life, Blood Oxygen Heart Rate Monitor, Black