My friend got a gift of this casio smartwatch and we were working on it we got help from manual but still we were unable to configure it so we tried to calibrate it with the android software but the results were same we used to set the time and the commands were send but after we save and close the application the time hands come to the same place where they were first. We tried again and again but the watch was not being calibrated so we took another android device and the connection range of bluetooth is also very less. Less than 1m range it got failed to connect this is then the unexptable from this massive brand casio.