Specification: Chip: PDA8955 Battery capacity: 400mAh Charging time: 2H Display resolution: 128*128 Display size: 1.44 inch color screen Strap Material: Silicone Color: Pink, Blue Radiation: lower than mobile phones, international standards, no impact on the human body Applicable age: 3-12 years old Positioning method: precise positioning + base station positioning Function: SOS Call, Remote monitoring,Voice micro chat,Low radiation,LBS base station positioning, Beidou positioning (no GPS positioning) Package Included: 1 x Smart Watch(No SIM Card) 1 x USB Cable 1 x User Manual Note: 1.Please allow slight size deviations due to manual measurement,measuring methods and tools. 2.The picture may not reflect the actual color of the item because of different photographing light and display monitor.Thanks for your understanding.