New Zealand just banned student mobile phones recently in all schools [1]. I would guess LTE connected devices would also count. I think banning fitness trackers is a bit much, they are very useful for sports such as cycling, running, tri & swimming. [1] https://www.education.govt.nz/school/digital-technology/cell...
The ban seems to target children too young to need to keep track of things like that, as far as I understand the article.