. NOTE: This smartwatch requires a NANO SIM card and is not included. myFirst Fone S2 Smartwatch is a new and improved version of the functional and innovative Fone smartwatches, and is perfect for you who want an extra kind of security when your child is outside.3 TFT, Camera: 2MP, Battery: Up to 48 hours, SIM card: NANO, Network: 2G & 3G, App: myFirst Fone ( iOS 7.