DD is in secondary school which is some distance from home, she takes a bus and then walks to school from the bus stop. She has a phone with her, which she then uses to send us a message that she got to school safely (the phone is then left at school office for the day). Quite a few students have their phone with them for this (and other) reasons.
However, recently there have been a few muggings in the streets just around the school where the kids have been attacked and robbed of their phones.
I quite like the idea of DD messaging us when she gets to school but obviously now worried in these circumstances and don't want her to carry her phone with her.
My question is, is anyone aware of any other technology she could use to send us a message when she gets to school? Is there some clever device that could be used without having to rely on a phone?