Unisex Intelligence Watch Waterproof Multi-Function Plug-In Camera Smart WatchFriendly Tips:1. Please kindly allow 2-3% difference according to manual measurement. 2. Please check the measurement chart carefully before you buy the item. (1 inch = 2.54 cm)3.Please note that slight color difference should be acceptable due to the light. Thanks.Specifications: Material: ABS Strap material: Silicone Network: GSM850/900/1800/1900/ SIM card: Support RAM: 32MB ROM: 32MB Touch screen: Capacitive high-definition, full lamination process Languages: multiple countries Bluetooth: BT3.0 Hands-free: support Multimedia: music, recording SMS: local SMS, mobile phone SMS Bluetooth synchronization Two-way anti-lost: anti-lost reminder, two-way search Sleep test: sleep quality test Sedentary reminder: sedentary reminder Pedometer: exercise pedometer, exercise mileage record Battery: 380mAh Talk time: 3.5 Hours Standby time: 3 Days Color: Black, silver gray, red, blue, brownPackage Contents: 1 XSmart WatchPromise If the product has any quality problems, please feel free to contact us, we will help you solve the problem as quickly as possible.