Outdoor Sports Defense Smart Watch, Built to withstand and work in tough environments!, Track your progress all day, know your status anytime. It is waterproof, dustproof and shockproof., Memory: RAM 64KB + ROM 128M, Waterproof :3ATM Waterproof, Display :1.69 inch TFT screen, resolution 240*280, Battery :350mAh polymer battery, Battery life :14 days of daily use, 50 days of standby, Connect Phone APP Name :Da Fit, Support compatible connection mobile phone version :IOS 10.0 and above, Android 5.1 and above, Strap size width :20 mm ( NOT support replacement strap), Package includes :Smartwatch x1, Charging cable x1, Manual x1, Warranty card x1, Protective Film x1