@sz: thank you for all your answers. I did not know you could not just stay with the 3G signal from the mainland (as long as there is a signal) - thanks for the insight. Also, interesting to hear that a Mifi is slower than a cell phone. I wonder if that is also dependent on the model Mifi. Amongst the crew members is there a preference for certain cell phones - are certain models more popular because the connection is faster?