Hello, My 4 year old is going to preschool in September. I want her to share her dexcom with me while at school from her device to mine. What are you thoughts on using a ipod touch( wifi only)instead of phone with 4g? There is wifi at school, but wonder if I might have problems with it going out of wifi too often. It seems crazy to get her a phone with a plan at 4 years old since she won't be using it for anything other than her blood sugar, but I want her to be safe.